Electric regulator

A fuel-air metering and induction system for an internal combustion engine including an electronic controlled pressurized carburetion system wherein a carburetor mounted on top of the intake manifold of an internal combustion engine is provided with one or more throttle valves to regulate the flow of...     

A fuel injection system for an internal combustion engine contains a fuel metering mechanism including first differential pressure diaphragm valves. The pressure difference prevailing at these valves can be changed by a second, electromagnetic, differential pressure diaphragm valve. The first and second...     

A fuel injection system includes a piston movable within a bore to displace fuel through a fuel outlet. Fluid under pressure can be admitted to the other end of the bore by way of a valve means to effect movement of the piston to displace fuel and when the valve means is closed a further valve means...     

A fuel injection system for an internal combustion engine includes an air flow responsive throttle element in the induction tube which is subject to an adjustable elastic restoring force. The throttle element is attached to a bushing which rotates about a pivotal shaft mounted within the induction tube....     

A fuel injection system for internal combustion engines includes a fuel metering and distributing assembly. The pressure gradient across this assembly is controlled by an electromagnetic fluid pressure modulator which acts on one side of equal pressure diaphragm valves. The pressure gradient is monitored...     

A fuel flow control system which, in response to the true mass of air entering the throttle body of an engine, provides a regulated flow of fuel to the throttle body, thereby delivering the optimum mass fuel-air ratio to the engine and maintaining idealized engine performance. The air flow rate drawn...     

A pilot fuel injection system for a diesel engine. One embodiment of the system includes a high pressure fuel pump, an accumulator, a mechanical fuel distributor, a pair of fuel metering valves for each cylinder of the engine, a fuel injection nozzle for each cylinder, and an electronic logic for controlling...     

An automatic control system for supplying a fuel-air mixture to an internal combustion engine including a variable-Venturi carburetor. Air is fed into the input of the Venturi, the air passing through the throat thereof whose effective area is adjusted by a mechanism operated by a servo motor. Fuel is...     

A mechanical, throttle body injection apparatus has an air valve positioned metering rod controlling fuel flow from a constant pressure fuel source through one side of a pressure regulator valve to a nozzle for continuous fuel injection into the throttle bore of the throttle valve controlling induction...     

The system comprises a zirconium sensor interposed in the exhaust conduit of a gas-fueled engine for sensing both oxygen content and temperature of the exhaust gases, and for emitting electrical analog signals thereof to a comparator/controller. In turn, the latter transmits a complementary, derivative...     

A valving arrangement is disclosed for varying the quantity and timing of fuel injections of a jerk pump (10) associated with an internal combustion engine. The arrangement consists of a bypass valve (40) in communication with the injection chamber (22) of the jerk pump (10) which produces a controlled...     

A compact fuel injection pump of the radial plunger type having a plunger barrel that integrates the plunger and a delivery valve in a common bore along with a fuel inlet-spill port in the wall of the barrel, the port being controlled by a ball valve actuated by a solenoid to a closed position to permit...     

A fuel pumping apparatus includes a rotary distributor member mounting pumping plungers. The apparatus includes a chamber to which liquid can be supplied to vary an operating characteristic of the apparatus. A flow passage is provided through which liquid can flow to the chamber and a valve constituted...     

A distribution type fuel injection apparatus has a fuel injection pump having a solenoid valve for controlling pressure of a high-pressure chamber of the apparatus. The solenoid valve is actuated or deactuated at the optimum time for fuel injection end or beginning by a control signal produced by a circuit...     

An electronic controller for an internal combustion engine provides a ratio control signal corresponding to a respective air/fuel ratio, and responds to an air flow signal, a fuel flow signal and the ratio control signal to control fuel flow as to make the ratio of air flow to fuel flow substantially...     

A fuel injection system for a diesel engine having an injection and metering modes of operation for delivering fuel to an engine comprising a plurality of fuel injectors wherein each of said fuel injectors comprise a first port, a second port and a metering chamber for storing a premetered quantity of...     

A fuel injection control system for an internal combustion engine including a sensor unit for detecting at least one engine operating condition, at least one fuel injection valve for supplying fuel to the engine, and a regulator for maintaining the pressure across the fuel injection valve at one of a...     

A fuel injection pump (100) including a plunger (2) and a piston (1) movably disposed in a pumping chamber (17), means for initiating (3, 5) fuel injection and means for terminating (13, 30, 29) fuel injection, the plunger periodically pressurizing fuel in a pressure chamber (44) and the piston (1) spaced...     

A fuel limit controller includes a computer supplying a commanded absolute EGR control pressure that is a measure of fuel supplied per diesel engine revolution. An absolute EGR control pressure equal to the commanded absolute pressure is generated from a subatmospheric pressure source and atmospheric...     

A fuel injection system has a fuel supply line which extends from a fuel reservoir to a fuel injector through a booster and is hydraulically isolated from a hydraulic circuit for operating the booster and a hydraulic circuit for operating a nozzle needle actuator, which is operatively associated with...     

An electronically controlled device for premetered pressure-time injection using high injection pressure and low feed pressure, which include one source (5-6) of medium pressure (MP) which is intermediate the high and low pressures, a two-stage rotary distributor which cyclically distributes the high...     

A fuel injection pumping apparatus for supplying fuel to an internal combustion engine, includes an injection pump having a plunger movable inwardly by cam means to effect delivery of fuel and a valve operable to control the supply of fuel to the bore containing the plunger. The valve is electrically...     

A fuel injector of a Diesel engine is supplied with a boosted supply of fuel from a booster and operated to start and terminate a fuel injection by a hydraulically controlled nozzle needle actuator. A valving unit is controlled to selectively communicate compressed operating fluid to the booster so that...     

A fuel injection pump (100) including a plunger (2) and a piston (1) movably disposed in a pumping chamber (17), means for initiating (3, 5) fuel injection and means for terminating (13, 20, 29) fuel injection, the plunger periodically pressurizing fuel in a pressure chamber (44) and the piston (1) spaced...     

In a fuel control system for a fuel injected internal combustion engine, fuel is pumped from a tank by a cheek plate unloading pump to the fuel rail which supplies the fuel injectors. The delivery pressure of the pump is controlled by a microprocessor which receives inputs from a number of sensors of...     

The disclosure illustrates an electronically controlled fuel pump in which a bypass valve regulates its output pressure to a predetermined level above a control pressure. A downstream throttling valve re-regulates the pressure to a predetermined level below a control pressure. The control pressure is...     

A Diesel engine distributor-type injection pump has a vane pump (3) providing fuel under pressure to an injection pump system formed by two pistons (17) pressed towards each other by a cam track (26) to provide fuel under injection pressure to fuel injection plug connectors (28, 29) when the radial position...     

A fuel/air metering system with an air throttle valve and fuel valve positively linked with the flow crossectional area of each valve proportional to the other. The air pressure drop across the air throttle valve is sensed and a corresponding fuel pressure drop is computed. A servo valve in series with...     

A liquid fuel pumping apparatus for supplying fuel to an internal combustion engine includes a high pressure pump 10 having an outlet 13 for connection in use to an injection nozzle. Fuel is supplied by a low pressure pump to the high pressure pump and the amount of fuel delivered through the outlet...     

In a fuel injection system having a fuel injection pump of distribution type with an electromagnetic valve controlling the communication between a spill port and a lower pressure fuel chamber, the closing duration of the electromagnetic valve is controlled by a computer so that the closing duration is...     

A flow control device advantageously used in a fuel injection system for a diesel engine. The flow control device includes a spool valve defining on its sides first and second chambers which are connected with each other by means of a throttle. The second chamber is connected to a high pressure pipeline...     

A fuel injection pump assembly comprises a plunger rotatably and telescopically mounted in a pump cylinder and having a plurality of fuel supply slots which are as many as the engine cylinders and movable in response to rotation of the plunger for selective communication with a pair of fuel inlet ports...     

A multi-plunger fuel injection pump consisting of a number of reciprocable fuel pumping plungers to which is distributed fuel by a fuel distributor plunger, all of the plungers being actuated by a common camshaft, the number of distributor plungers being less than that of the pumping plungers and determined...     

A fuel injection pump is proposed in which the fuel metering during the intake stroke of the pump pistons of the fuel injection pump is effected via a pressure conduit, the cross section of which is controlled first by an electrically controlled switching valve and second by means of the control of a...     

A diesel fuel system including a cam actuated unit injector employing a single control valve controlling the establishing and disestablishing of a hydraulic link in a timing chamber between a driven piston and a metering piston. The cam is configured to temporarily halt the upward motion of the pumping...     

A fuel system for a multi-cylinder engine comprises a plurality of engine operated pumps supplying fuel to the injection nozzles respectively of an engine. Each pump has an electromagnetic valve which must be closed to cause delivery of fuel by the respective pumps. The supply of power to the windings...     

A fuel injection pump is proposed, based on a fuel injection pump of a known type, which has an adjusting member for determining the injection duration and is provided with a throttle device for determining the effective supply stroke of the pump piston. In accordance with the invention it is proposed...     

Embodiments of supercharged internal combustion engines employing improved induction systems for providing better performance at idle low speeds and upon acceleration. A simplified bypass and pressure relief system is incorporated in each embodiment for permitting the engine to induct air directly and...     

A fuel injection pump comprises a rotor located in a housing, a free piston movably mounted in an axial bore of the rotor, two pump chambers which is formed by dividing said bore by the free piston, and two solenoid valves for supplying fuel to the two pump chambers, one of the chambers receiving therein...     

A liquid fuel pumping apparatus of the rotary distributor type has an electromagnetically operable spill control valve including a valve member which is closed to prevent spillage of fuel from the high pressure pump of the apparatus. A transducer including a core member and a winding is provided to provide...     

A fuel injection system which serves to supply fuel to an internal combustion engine. The fuel injection system includes a metering and quantity distribution valve with regulating valves connected at the output side, which valves can be influenced by the fuel pressure in a differential pressure control...     

A fuel injection pump for internal combustion engines in which by means of an obliquely extending control groove on the jacket face of a distributor, the end of injection can be varied by opening a relief conduit during the displacement of the distributor. The injection onset is made to follow this variable...     

A fuel injection pump of the radial plunger, spill port type includes electromagnetic means for opening and closing the spill port to control the pressurization of fuel for injection of fuel to the individual engine cylinders; a single solenoid assembly controlling the flow of fuel to and from a pair...     

In a fuel injection apparatus for an internal combustion engine, the fuel injection is ended by a spill mechanism provided in a spill passage communicating with a pumping chamber. A piston opening and closing the spill passage is a free piston, and a solenoid valve to open and close a cylinder in which...     

A fuel injection system for a diesel engine having a fuel injector with a fuel accumulator chamber connected by an orifice to a fuel source having a pressure controlled by an electronic controller, an injection valve control chamber connected by a second orifice to the fuel source and a solenoid valve...     

A liquid fuel injection pumping apparatus comprises a plunger reciprocable in a bore, an electrically operated spill valve to divert fuel pumped by the plunger to prevent it reaching an outlet. In an emergency the spill valve can be closed and valve means used to provide a restricted flow of fuel to...     

A fuel injection pump includes a number of plungers of the fill/spill port control type, the plungers being hydraulically connected in pairs and through a single shuttle valve to a single fuel spill port controlled by a single solenoid controlled spill valve, the plungers being operable in sequence and...     

Electrically operated valve for liquid or gaseous media, suitable for internal combustion engines, possessing an electrically-activated actuating element with a short actuating displacement, this actuating element acting on a control valve, and possessing a nozzle element which unblocks a nozzle when...     

A liquid fuel injection pumping apparatus for supplying fuel to an internal combustion engine includes, a high pressure injection pump, an electrically operated spill valve which when open during a delivery stroke of the injection pump allows fuel to flow to a drain. The apparatus includes a control...     

A fuel pumping apparatus for supplying fuel to an internal combustion engine includes a valve means operable to control the spillage of fuel from a high pressure pump. The valve means includes first and second valve elements connected by a pivotal beam carried on a pivot movable in the direction of valve...     

A fuel pumping apparatus for supplying fuel to an internal combustion engine includes a positively reciprocated plunger which during movement in a fuel delivery direction displaces fuel from a first chamber and draws fuel into a second chamber and vice versa. The fuel displaced from the first chamber...     

A fuel injection pump is proposed in which the fuel metering takes place during the intake stroke of the pump pistons via a fuel supply line in which a switching valve is mounted, which is opened upon the onset of the intake stroke of the pump pistons, closes in the course of this intake stroke and with...     

A fuel pumping apparatus for supplying fuel to an internal combustion engine has a high pressure pump including a plunger reciprocable in a bore connected to a fuel injection nozzle. Valve means including a valve member and a piston member is provided. The valve member can be moved to a closed position...     

Fuel is held under high pressure by an accumulator which is connected with injecting nozzles by respective fuel pipes. The fuel pipes are each provided with a timing control valve and a quantity control valve, and these valves are controlled by an electric control apparatus. The control apparatus controls...     

A fuel injection device is disclosed, which includes a body having first and second bores coupled to each other in series. A delivering plunger is fitted in the first bore, so that it can slide, to define a delivering pump chamber therein. Fuel under a constant pressure is supplied to the delivering...     

A piezoelectric control block, particularly for controlling a fuel injection device for a combustion engine, preferably diesel engine, with a distributor injecting pipe, has an adjustable fuel quantity adjusting member, and a longitudinally extending mechanical movement converter which is formed so that...     

A fuel injection nozzle for internal combustion engines which has a valve needle loaded in the closing direction and is radially guided and supported in an axially displaceable manner within a nozzle body. The movement of the valve needle is effected in the opening and closing directions in a selectively...     

A device for metering pressurized fuel from a fuel pump and to an engine. The device includes a housing having a fuel inlet port connected to the fuel pump, a fuel outlet port connected to the engine and a fuel return port connected to the fuel tank. A valve member is contained within the interior of...     

A fuel injection pump for an internal combustion engine has a shaft rotatable by the engine. The shaft is formed therein with a radial bore and an axial bore communicated therewith. Pumping plungers are slidably disposed in the radial bore to cooperate therewith to define a compression chamber and cyclically...     

Method and apparatus for fuel injection to an internal combustion engine is disclosed. Gas is supplied to a fuel holding chamber to maintain a reference pressure which is above atmospheric pressure in the fuel holding chamber. A metered quantity of fuel is delivered into the holding chamber against the...     

A marine fuel supply system for a fuel injected engine (10) deadheads a high pressure fuel line (27) with a closed-end connection to the fuel injectors (24) without a recirculating return fuel line to the fuel injection pump (25) and without a return fuel line to the remote fuel tank (29). A differential...     

A fuel pumping apparatus for supplying fuel to an engine includes a pumping plunger reciprocable in a cylinder by a cam having cam lobes. Fuel is displaced during inward movement of the plunger during forward rotation of the engine by the leading flanks of the lobes. A valve can be closed during the...     

An electro-pressure conversion control device comprising a fluid passage formed in a device body, which fluid passage includes a fluid inlet at one end, a throttle, a jetting hole at the other end, and a control pressure taking port provided between said throttle and said jetting hole and a plate which...     

A piezoelectric flow control valve comprising a slidable closure member (22) for controlling a flow of fluid through a fluid passage (42) between a fluid inlet (40) and a fluid outlet (32). The closure member (22) is biased toward a normally closed position by a plunger (70) responsive to a hydraulic...     

A fuel injection pump is proposed in which the fuel supply quantity supplied to the injection location is determined by metering the quantity of fuel aspirated. The metering of the aspirated quantities is effected with the aid of at least one magnetic valve which is located in the fuel supply line leading...     

A fuel injection system for a diesel engine has fuel pump driven by the engine for producing highly pressurized fuel, a common rail for storing the pressurized fuel therein and injection nozzles for injecting the pressurized fuel stored in the common rail into the engine. The injection nozzles are electrically...     

A fuel injection control device in which a needle valve of a fuel injector is opened and closed by two valves. The fuel injector has a pressure control chamber and a fuel chamber, and the needle valve opens a fuel injection aperture to inject the fuel in the fuel chamber to the engine when a pressure...     

A fuel injection device for an internal combustion engine has a fuel pressurization chamber and a fuel chamber which are coupled to each other by a solenoid valve. The timing of fuel injection and the amount of fuel to be injected are controlled by selectively opening and closing the solenoid valve....     

A fuel pumping apparatus for supplying fuel to an internal combustion engine includes a plunger reciprocable within a bore having an outlet connected to an injection nozzle. The plunger is reciprocated through a fixed stroke and a valve is provided to close a spill path to start delivery of fuel to the...     

The movement of an injector valve member (52) which closes and temporarily opens discharge orifices (58) communicating with the combustion chamber of an internal combustion engine is controlled by the fuel pressure in a control chamber (72) and by a difference in the pressure forces acting on a piston...     

A fuel pressure regulating apparatus having a biasing structure including at least two and sometimes three biasing members, at least one of the biasing members being under control of an electromagnet in order to regulate the position of a valve member, which is associated with a diaphragm, with respect...     

A fuel injection pump, preferably for internal combustion engines operating by the Otto method, having a pump work piston driven to reciprocate and rotate simultaneously and defining two mutually independent pump work chambers, is proposed. The first pump work chamber pumps fuel into the combustion chamber...     

A fuel injection pump having a switchable valve for the control of the start of the injection connected to the bore for the piston by a control valve bore provided axially below the filling and control bore. The control valve bore is connected with a pump pressure space via a central bore of the piston...     

A control valve for use in a fuel injection system of an engine comprises a valve member of plate like form and movable in an inlet chamber between a first seating and a second seating on opposite sides of the valve member. The first sealing is smaller in diameter than the second seating and surrounds...     

For controlling high-pressure phases during the stroke of a pump piston of a fuel injection pump, magnetic valves are also used, which are built into relief lines of the pump work chamber of such fuel injection pumps and which with the instant of closure of the relief line determine the injection onset...     

A system for controlling delivery of fuel to a compression ignition engine having a predetermined characteristic ignition delay. A positive-displacement pump, typically a high-pressure, multiplunger in-line pump, receives fuel from a source and provides intermittent, pressurized pulses of fuel flow....     

A fuel pumping apparatus comprises a body housing a high pressure fuel pump to which fuel is supplied by an angularly adjustable throttle member from a low pressure pump. The throttle member mounts an arm and a hollow housing is provided which is secured to the body. A support carries an electromagnetic...     

A fuel injection pumping apparatus for supplying fuel to an engine includes a high pressure pump which receives fuel from a low pressure pump by way of an angularly adjustable throttle member. The throttle member is connected to the armature of an electromagnetic actuator by means of a connecting rod....     

The base of a fuel injector has a plurality of radially opening recesses that receive the ends of injection tubes, the end of each tube is flared and surrounded by an O-ring that seals the tube in its recess, each tube is surrounded by a sleeve that supports the tube in its recess, and a retainer clip...     

Disclosed is an emergency bypass mechanism to route fuel around an electrcally controlled fuel flow regulator of a combat vehicle when flow through the regulator becomes severely restricted. The mechanism includes electrically actuated valves hydraulically in parallel with the regulator, the valves being...     

A pumping apparatus for supplying fuel to an internal combustion engine has a high pressure pump, an adjustable throttle member which is utilized to control the fuel flow from a low pressure to the high pressure pump. An electromagnetic actuator is utilized to adjust the setting of the throttle member...     

A metering valve, simultaneously controlling a plurality of flow paths with a single poppet movable into and out of engagement with a valve seat in a duty cycle operation has the sealing surfaces of the poppet and seat formed with an accurately flat surface finish to minimize leakage when the valve is...     

A fuel injection nozzle includes a fuel pressure actuated valve member which is biased into contact with a seating by resilient means. The nozzle also includes a spill valve member having a head which is biased into contact with a seating by the resilient means. The head of the spill valve is lifted...     

A variable-discharge high pressure pump for pressure-feeding fuel to a common rail for use in a diesel engine. The pump has a plunger, a plunger chamber, a cam for reciprocatively moving the plunger; and opening-out type electromagnetic valve capable of opening and closing one end of the plunger chamber,...     

A unit injector comprising a plunger, a high pressure fuel chamber, and a needle; the pressure of fuel in the high pressure fuel chamber being increased by the plunger. A spill valve is slidably inserted into a bore and is actuated by an actuator. The spill valve has a first annular fitting portion in...     

An evaporative fuel control system for internal combustion engine which comprises a canister for storing a fuel vapor, a purge passage connecting the canister to an intake manifold, a valve provided in the purge passage, an engine temperature sensor for sensing an engine temperature, a fuel distillation...     

A fuel injection device for diesel engines, having at least one pump plunger (4), which is sealingly guided in a plunger bushing (5) and forms, together with said plunger bushing (5), a high-pressure space (11) that is connected to a low-pressure space (13) by means of a control element during the downward...     

A fuel control solenoid valve for metering fuel flow through a low pressure fuel injection system of an internal combustion system is provided. The low pressure fuel injection system including the fuel flow solenoid valve is especially suitable for use in providing fuel to a two-cycle internal combustion...     

Two embodiments of fuel injection systems for two cycle crankcase compression internal combustion engines that employ two fuel injectors. One fuel injector injects into the combustion chamber while another injects into the induction system of the engine. A simplified regulating system is incorporated...     

The invention relates to an electrically controlled injection system for internal combustion engines, in which a magnet valve that is open when without current is used to control the fuel quantity of a high-pressure chamber in the injection pump. A pressure chamber communicates via a pressure conduit...     

A method of controlling a purge solenoid for a purge control system of an internal combustion engine is provided. The method includes the steps of determining whether predetermined conditions are right for duty cycling the purge solenoid and turning the purge solenoid OFF if predetermined conditions...     

A fuel-injection device adjusts a fuel-injection level with a solenoid valve disposed in a fuel-supply passage which supplies the fuel to a compressor. A pulse width of a drive pulse to actuate the solenoid valve, which is determined by the sum of a time lag in the valve's closing caused by the motion...     

An electromagnetically operated valve for the clocked feeding of volatile fuel constituents out of the free space of a fuel tank into the intake manifold of an internal combustion engine is disclosed. The valve is provided with at least one intake port and at least one outlet port, a main valve seat...     

ABSTRACT A solenoid valve is provided in a fuel injection pump fuel supply path. A communication path communicates with each other an armature chamber, which accommodates an armature, and a spill chamber, which accommodates a head of a valve body and is connected to a lower pressure side. When high pressure...     

A fuel system for a multi-cylinder compression ignition engine includes a tubular body (10) having an internal step (11) against which is located a flanged pump barrel (12), a pair of valve blocks (22, 23) mounted in end to end relationship between the barrel (12) and a mounting block (24) secured to...     

A fuel injection pumping apparatus of the rotary distributor type includes a pumping plunger (13) housed in a bore which is completely filled with fuel during the filling stroke of the apparatus. An electromagnetically operable spill valve (22) is provided to control the quantity of fuel supplied by...     

A system for controlling fuel injection in a diesel engine that includes a hydraulically-actuated, electronically-controlled unit injector (HEUI) fuel system. The injection rate/pressure characteristic of a HEUI fuel system is a function of oil supply (rail) pressure, which is independent of engine speed...     

An electropneumatic control valve for regeneration of a fuel absorption element by supply of air to the absorption element includes a valve comprised of a valve seat member (5) and a valve sealing member (4). The valve seat member is displaceable under the action of a pneumatic control section (2B) while...     

A no-return fuel system with a pressure regulator controlling the pressure of fuel supplied by a pump to the fuel rail and injectors of an internal combustion engine. The regulator has a bypass valve movable to open and closed positions by a diaphragm assembly to regulate the pressure of fuel supplied...     

A device is provided for pumping fuel through an internal combustion engine, comprising a pump cylinder and a piston reciprocable within the pump cylinder to define a pump chamber open at one end in which fuel is pressurized during a pump stroke of the piston. A fuel supply means is provided for supplying...