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WO/1995/027845A1 |
A process for operating a combustion engine (300) which comprises the steps of converting a fuel precursor containing hydrogen to produce substantial amounts of engine-fuel containing free hydrogen and combusting substantial amounts of e...
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WO/1995/027135A2 |
Fuel injection pump in which the piston is driven via a rocker (6) bearing a roller (14) running on a cam (20) and thus providing the rocking motion to drive the piston via the rocker. Here, the roller (14) is borne in a shell-like reces...
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WO/1995/026468A1 |
Described is a fuel-injection system designed for pre-injection and main injection of fuel through injection nozzles into the combustion chambers of an internal-combustion engine. The system is fitted with a pre-injection piston (10) whi...
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WO/1995/021999A1 |
A hydraulically actuated electronically controlled unit injection system comprises a pressure intensifier associated with a hydraulically controlled differential valve (HDV) (4) having a poppet valve (23) opening into a working chamber (...
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WO/1995/003487A1 |
An improved high pressure fuel injector (10') for internal combustion engines in which problems of hysteresis delays and fuel leakage at the commencement of the metering process can be avoided without affecting the ability to precisely c...
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WO/1995/002123A1 |
The proposal is for a fuel injection device with a reciprocating pump piston (8), the working chamber (13) of which is connected to an injection valve fitted directly on the pump housing. To control the quantity of fuel injected and the ...
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WO/1994/029578A1 |
A spool valve (22) controls a hydraulic drive, such as a drive for a fuel pump (18) in an internal combustion engine, in which the hydraulic drive comprises a driving piston (34) journalled in a hydraulic cylinder (33) which through a fl...
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WO/1994/024419A1 |
Described is a camshaft drive for the outlet and inlet valves and for actuating the fuel-injection pump (6) of a diesel engine, the invention calling for the three actuation functions to be carried out by the same cam (2) indirectly via ...
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WO/1994/021912A1 |
A fuel injection device for internal combustion engines comprises a unit injector for each cylinder and a rocker arm (20) driving the pump piston of each injector, said rocker arm consisting of arigid portion (22) and a spring portion (2...
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WO/1994/012787A1 |
A unit injector for supplying fuel to an internal combustion engine has a bore (21) in which is mounted a pair of plungers (22) extending from the opposite ends of the bore. The plungers are actuated by cams (26) which are mounted on a p...
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WO/1994/010441A1 |
A fuel injector (1, 2) which uses interchangeable subassemblies (10, 11) to allow the injector to be converted from open to closed nozzle options without affecting engine installation, and without altering the timing or metering principl...
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WO/1994/007022A1 |
The invention relates to an injection valve for realizing both fuel injection and ignition in an internal combustion engine consisting of a holding house (1) having an injection opening (6), a valve body (2) arranged for closing the inje...
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WO/1994/004818A1 |
A fuel injection nozzle for use in a fuel system of a compression ignition engine includes a nozzle body (30) in which is formed a nozzle bore (31). A seating is defined about the bore at or adjacent one end and extending within the bore...
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WO/1994/003721A2 |
An electromagnetic fuel injector (30) has a tubular non-magnetic body (32) defined by radially inner and outer side walls (34, 36) bounding an annular shaped interior which contains a tubular solenoid coil (54) and an annular valve eleme...
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WO/1993/025831A1 |
A pressure responsive spring valve (25) which is able to function at high pressures and temperatures, and can attain a high degree of precision control in a minimum of space, as well as an improved fuel injector (1, 1', 1'') which uses s...
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WO/1993/024739A1 |
Systems to optimize breathing have been used with internal combustion engines in the past and used a variety of mechanical mechanisms to improve breathing and combustion. Many of these systems fail to provide the option of controllably a...
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WO/1993/023662A1 |
An internal combustion engine in which each cylinder is connected to sources both of air and of fuel held as a gas under pressure and in which the compression stroke, during which a full charge of air is drawn and compressed, is substant...
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WO/1993/021439A1 |
A pump/injector includes a pumping plunger (13A) movable inwardly in a bore to displace fuel from a pumping chamber (16) through an outlet. A fuel flow path into the pumping chamber includes an inlet port (20) connected to an annulus (20...
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WO/1993/020348A1 |
A fuel injector (10) includes a plunger assembly (20) disposed within a central axial bore (18) and including a lower plunger (22), an intermediate plunger (24), and an upper plunger (26). The lower plunger (22) reciprocates to meter a v...
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WO/1993/019292A1 |
A pump/injector for supplying fuel to a compression ignition engine includes a fluid pressure controlled spill valve (23) in the housing (10) which carries the injection nozzle (11) and the engine cam operated pumping plunger (16). The s...
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WO/1993/018297A1 |
A fuel injection device works according to the solid energy accumulator principle. A reciprocating piston (10, 14) guided in the cylinder of a reciprocating piston pump (1) driven by an electromagnet (9) delivers portions of the fuel to ...
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WO/1993/018290A1 |
The invention relates to a circuit for controlling an exciting coil of an electromagnetically driven reciprocating piston pump for use as a fuel injector, in which there is a circuit to control the armature exciting coil (600) which is c...
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WO/1993/018296A1 |
A fuel injection device works according to the solid energy accumulator principle in which an armature component (10) guided in a pump housing (8) of a reciprocating piston pump (1) driven by an electromagnet (9) is accelerated practical...
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WO/1993/016281A1 |
A pump/injector for supplying fuel to a compression ignition engine includes a fluid pressure controlled spill valve (23) in the housing (10) which carries the injection nozzle (11) and the engine cam operated pumping plunger (16). The s...
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WO/1993/015310A1 |
A series of method and apparatus advances in the accumulator-type fuel injector art, applicable to both intensified and unintensified accumulator injectors, which cooperate to provide major improvements in internal combustion engine fuel...
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WO/1993/014312A1 |
A fuel system for a compression ignition engine of the direct injection type and having a capacity of about two litres per engine cylinder comprises a unit injector having a multi spray hole nozzle (16) and an electromagnetically operabl...
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WO/1993/013309A1 |
It is desirable that the amount of fuel injected into a combustion cylinder of an engine be controlled or metered based upon engine operating conditions. Typically, in unit fuel pump injectors, fuel is passed into a chamber below an axia...
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WO/1993/007382A1 |
An actuator and valve assembly (28) for an electronically-controlled unit injector (18) is disclosed which comprises an electrically-energizable actuator assembly (36) and a device (56) for communicating, collecting and draining damping ...
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WO/1993/007383A1 |
A fuel injection system (10) is disclosed comprising a high pressure actuating fluid pump (332), a first plurality of hydraulically-actuated unit injectors (18), and a first high pressure actuating fluid manifold (334) arranged in fluid ...
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WO/1993/007379A1 |
An actuator and valve assembly (28) for a hydraulically-actuated electronically-controlled unit injector (18) is disclosed which comprises an electrically-energizable actuator (36) including a movable member (42) and a poppet valve (38) ...
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WO/1993/007384A1 |
Herein are disclosed methods of conditioning fluid, such as damping fluid, in an electronically-controlled unit injector (18) in order to facilitate quick starting of an engine (12). Fluid normally used to dampen the motion of an electri...
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WO/1993/007381A1 |
Methods of starting a hydraulically-actuated electronically-controlled fuel injection system (10) are disclosed. One method comprises the steps of pressurizing actuating fluid used to actuate a unit injector (18) and actuating an electri...
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WO/1993/007378A1 |
In a hydraulically-actuated electronically-controlled unit injector, the viscosity of the actuating fluid used to actuate the unit injector varies with ambient temperature and affects the magnitude of pressure drops in the actuating flui...
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WO/1993/007380A1 |
A hydraulically-actuated electronically-controlled unit injector fuel system (10) and method of operation is disclosed. The fuel system (10) comprises at least one hydraulically-actuated electronically-controlled unit injector (18) and a...
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WO/1993/001409A1 |
Fuel injectors are arranged in a multiple cylinder internal combustion engine for each cylinder, which injectors are supplied with fuel via passages (21-26) in the cylinder heads (13) of the engine. The passages (24-26) are each designed...
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WO/1993/001408A1 |
A fuel injector (5) is arranged in a multiple cylinder internal combustion engine for each cylinder (60), which fuel injectors (5) are supplied whith fuel via passages (21-26) in the cylinder heads (13) of the engine. Passages (24-26) ha...
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WO/1993/001407A1 |
A high pressure unit fuel injector (1) includes a timing chamber (26) formed between upper (13) and lower (17) plungers of the injector for controlling the timing of injection. A timing chamber relief valve (59) is provided for performin...
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WO/1993/000502A1 |
A method of control of the supply of lubricating oil to a two stroke cycle internal combustion engine comprising supplying fuel to a fuel injector from a fuel reservoir having a fuel capacity greater than the maximum fuel requirement of ...
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WO/1992/017700A1 |
The fuel pump (10) of a unit fuel injector comprises a pump housing (11) which is of two-part construction and has a pump chamber (14) formed in the housing. The respective parts (11', 11'') of the housing have mutually abutting end surf...
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WO/1992/017693A1 |
The subject engine (8) includes a low pressure piston assembly reciprocally disposed in an operating chamber (22) defined in a housing (10). A pair of opposed high pressure piston assemblies (58) and (60) are directly mounted on a pair o...
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WO/1992/014925A2 |
A fuel injection device (5) for internal combustion engines has an injection nozzle to which fuel is supplied by means of a pressure device comprising a fuel-accelerating pump (1) and a fuel-retarding device (6) which, when activated, co...
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WO/1992/010666A1 |
A unit injector has a pump body (10) against an end wall of which is located a member (16). Opening onto the end wall of the pump body is a pair of passages (28, 29) one of which communicates directly with the pumping chamber (14) and th...
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WO/1992/010668A1 |
A reciprocating plunger fuel injection pump has a plunger (17) slidable in a bore (16) in a body (10). A tubular part (34) surrounds the portion of the plunger projecting from the bore in spaced relationship. Slidable in the tubular part...
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WO/1992/010669A1 |
A fluid connection between a pair of passages (12, 15) which open onto surfaces (13, 16) in respective body parts which are secured together. About one of the passages a sealing zone (21) is established in the respective surface and the ...
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WO/1992/009792A1 |
The invention relates to an internal combustion engine with compressor function. One or more of the cylinders of the engine has an extra exhaust valve (11, 12) in the cylinder head. The engine has a fuel injection system with electric un...
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WO/1992/008890A1 |
A fuel injection device capable of controlling a very small fuel injection flow rate at high speed and stably performing high-speed light-load operation. A main fuel path (36) branching from a fuel path (14) for setting up communication ...
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WO/1992/005345A1 |
The design and construction of past pushrod retainers have required complex components, sliding relationships and additional assembly time and expense. The present invention overcomes these problems by using a retention shelf (144) attac...
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WO/1992/005363A1 |
A fuel injection nozzle has a valve member (16) slidable in a bore (15) in a nozzle body (13). The valve member has an end profile(31) shaped to engage a seating at the end of the bore. The valve member has an electrically conductive elo...
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WO/1992/000450A1 |
Conventional tappet retainer assemblies for a fuel injection pump typically include a blind radial passage formed in a tappet. Only one opening in the passage is available for inserting and removing a ball bearing or spring and stop pin ...
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WO/1991/015675A1 |
Described is a fuel injection device, in particular a pump injector, for internal combustion engines, in which the start and end of fuel delivery is controlled by a solenoid valve (2) fitted between a low-pressure line and the working sp...
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