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| Number | Title | Issue Date |
| 6953022 | Fuel injection pump A fuel injection pump, comprising three sub-mechanism parts; a lower mechanism part (A), a head mechanism part (B), and a governor mechanism part (C), wherein, when the governor mechanism part (C) is assembled into the combination of the lower mechanism part (A) and... | 10/11/2005 |
| 6871135 | Method for operating an internal combustion engine, the internal combustion engine and a control apparatus therefor The invention is directed to a method for operating an internal combustion engine (1) wherein a fault of a pressure system with a pressure sensor (14) is determined by a first diagnostic system (14′) of the engine (1). The pressure sens... | 03/22/2005 |
| 6766789 | Injector driving control apparatus An injector driving control apparatus operates with minimum power consumption, while ensuring linearity (proportionality between the current supply duration and fuel injection volume of the injector) in a wide fuel pressure range. A coil current feedback circuit is ... | 07/27/2004 |
| 6705297 | Fuel pump for an internal combustion engine A fuel pump for an internal combustion engine that transmits fuel with pressure by a lifting movement of a plunger that is caused to lift by a movement of a cam includes a lift amount changing mechanism. The lift amount changing mechanism includes a cam in which a h... | 03/16/2004 |
| 6102001 | Variable displacement pump fuel metering system and electrohydraulic servo-valve for controlling the same A variable displacement pump fuel metering system wherein an electrohydraulic servo-valve powers a pump actuator to control pump displacement and variably bypasses fuel as an integrally related function to improve flow dynamics. The electrohydraulic servo... | 08/15/2000 |
| 5445019 | Internal combustion engine with on-board diagnostic system for detecting impaired fuel injectors The present invention is directed to an on-board diagnostic system for detecting impaired fuel injectors in an internal combustion engine during engine operation. A fuel injector control means is provided for individually actuating fuel injectors Operativ... | 08/29/1995 |
| 5245971 | Fuel-injection pump for internal-combustion engines A fuel-injection pump, especially a direct fuel injection in spark-ignition internal-combustion engines, with at least one pump for generating a fuel flow under pressure and with a rotary slide valve moved synchronously with the drive shaft of the interna... | 09/21/1993 |
| 5215060 | Fuel system for rotary distributor fuel injection pump A rotary distributor fuel injection pump having a fuel system for circulating fuel continuously from a fuel supply pump via an end chamber at one end of the distributor rotor and an annular fuel chamber surrounding the distributor rotor to a return line a... | 06/01/1993 |
| 5020493 | Distributor fuel injection pump for internal combustion engines A distributor fuel injection pump for internal combustion engines, having a cam ring which drives at least one radial piston and having a distributor piston disposed transversely to the cam ring and defining a pump work chamber, having a distributor groov... | 06/04/1991 |
| 5000151 | Method for improving the operation of a motor vehicle driven with an internal combustion engine and motor vehicle with an internal combustion engine A method is proposed for improving the operating behavior of motor vehicles driven by an internal combustion engine and especially to reduce jerking or bucking. The jerking, caused by rapid changes in engine torque, is damped by adapting the torque of the... | 03/19/1991 |
| 4971012 | Distributor fuel injection radial piston pump A distributor fuel injection radial piston pump comprising a distributor piston movable between first and second axial positions to communicate a pump working space with an injection nozzle and to prevent communication between the pump working space with ... | 11/20/1990 |
| 4953515 | Diesel engine secondary fuel injection system A method of operating a diesel engine. Diesel fuel is controllably injected into the engine. An engine performance parameter such as turbo-charger boost pressure, fuel pressure in the diesel fuel injector galleries, or air intake manifold pressure, or a c... | 09/04/1990 |
| 4913632 | Fuel injection pump A rotary distributor fuel injection pump includes a rotary distributor member movable axially in a body part. The distributor member has a transverse bore in which is mounted a pumping plunger. At its outer end the plunger is engaged by a cam follower inc... | 04/03/1990 |
| 4909219 | Hydromechanical fuel pump system A hydromechanical fuel pump system of supplying timing fluid and fuel to high pressure fuel injectors utilizing a hydromechanical fuel control circuit to control the flow of fuel that is withdrawn from a fuel reservoir by a pump and delivered to the fuel ... | 03/20/1990 |
| 4903661 | Fuel injection pumping apparatus A fuel pumping apparatus for supplying fuel to an engine has a high pressure pump which includes a component movable to determine the maximum amount of fuel which can be supplied to the engine. The component is biased by a spring to a minimum fuel positio... | 02/27/1990 |
| 4889092 | Fuel viscosity/density compensation device Apparatus and a method for effecting fuel viscosity/density compensation are disclosed. A combination of fuel flow through a viscosity sensitive annular orifice and a swirl-type orifice are utilized to create pressure differentials for driving a piston fo... | 12/26/1989 |
| 4884543 | Fuel injection pump for combustion engines Fuel injection pump having a pump piston including a working space that is connected via a check valve with a reservoir closed off by a movable wall. A control line leads from this reservoir to a regulating cylinder. An adjustable regulating member is dis... | 12/05/1989 |
| 4870889 | Hydraulic device for fuel pumping apparatus A hydraulic device includes a piston slidable within a cylinder. Fluid under pressure is admitted to one end of the cylinder through an inlet which contains a restrictor. The piston is formed with an orifice and is biased by a first spring towards the one... | 10/03/1989 |
| 4815434 | Hydraulic inertia governor An inertia governor mechanism applicable to a power unit providing a uniform preselected RPM when the power unit is subjected to variable loads. A pump means provides a constant supply of fluid at a constant pressure to a fluid circuit. A rotary disc valv... | 03/28/1989 |
| 4811711 | Fuel injection pump for internal combustion engines A fuel injection pump for internal combustion engines, in particular an in-line injection pump for Diesel engines, is proposed having an injection quantity governor and an electrically driven feed pump, in which in order to assure an emergency shutoff in ... | 03/14/1989 |
| 4811710 | Fuel injection pump for internal combustion engines A fuel injection pump for internal combustion engines having a hydraulic control mechanism includes a control cylinder with a control piston actuating a control member, a hydraulic work chamber and one switching valve each for an input and an output contr... | 03/14/1989 |
| 4770141 | Fuel pumping apparatus A fuel pumping apparatus for supplying fuel to an internal combustion engine includes a spring loaded fuel quantity control member which is moved by increasing fluid pressure in a chamber to reduce the amount of fuel supplied. The pressure in the chamber ... | 09/13/1988 |
| 4751903 | Fuel pumping apparatus A fuel pumping apparatus of the rotary distributor type has a spill control sleeve mounted on the distributor member. The sleeve is axially movable to vary the quantity of fuel delivered by the apparatus and in addition the distributor member is also axia... | 06/21/1988 |
| 4699108 | Fuel injection pumping apparatus A fuel injection pumping apparatus of the rotary distributor type includes a rotary distributor member which is biased axially in one direction by a spring and is movable in the opposite direction by fluid pressure in a chamber. The axial setting of the d... | 10/13/1987 |
| 4652220 | Liquid fuel pumping apparatus A liquid fuel pumping apparatus for supplying fuel to an internal combustion engine has a rotary distributor member in which is mounted a plurality of pumping plungers which are engaged at their outer ends by cam followers which engage the internal surfac... | 03/24/1987 |
| 4590913 | Fuel injection pump A fuel injection pump having a hydraulic injection onset adjuster, an rpm governor with at least one member operating in accordance with load, and a full-load stop of the governor which limits the maximum injection quantity is proposed, in which between t... | 05/27/1986 |
| 4574759 | Fuel injection pump A fuel injection pump in which for the purpose of controlling the injection quantity and in particular to determine the onset and end of injection, a hydraulically actuatable piston slide is provided, which controls a connection between the pump work cham... | 03/11/1986 |
| 4546745 | Fuel pumping apparatus A fuel pumping apparatus includes a high pressure pump and a low pressure pump which supplies fuel thereto. A further low pressure pump supplies fuel at a pressure which is modified to provide a control pressure which is used to control the delivery quant... | 10/15/1985 |
| 4522181 | Fuel injection pump for internal combustion engines A fuel injection pump for internal combustion engines is proposed which has a hydraulic injection instant adjuster, which is exposed to an rpm-dependent pressure established with the aid of a pressure control valve. The control of the pressure control val... | 06/11/1985 |
| 4520782 | Fuel pumping apparatus A fuel pumping apparatus for supplying fuel to an internal combustion engine includes a throttle member having a groove which can register with a port to control the fuel flow to an injection pump forming part of the apparatus. The throttle member is angu... | 06/04/1985 |
| 4512308 | Device for adjusting the full-load injection quantity of a fuel injection pump for internal combustion engines A fuel injection pump in which the quantity adjustment member has a travel limitation in the form of an adjustable stop, which is adjusted in accordance with the displacement of an adjusting piston in accordance with a contour defined on the adjusting pis... | 04/23/1985 |
| 4505244 | Fuel injection system A fuel injection system is provided for a multicylinder internal combustion engine. Each cylinder is provided with at least one fuel injector. The system includes a cam-operated pumping plunger which maintains fluid pressure within an accumulator and cont... | 03/19/1985 |
| 4503820 | Fuel injection quantity sensing apparatus for an internal combustion engine A piezoelectric sensor produces a first signal indicative of the pressure of fuel in a working chamber defined by the plunger housing and the inner end of a fuel distributing plunger reciprocating through the plunger housing. A threshold discriminator res... | 03/12/1985 |
| 4495916 | Fuel injection pump control system in diesel engine A piston mechanism is driven in accordance with fuel pressure from a feed pump by a control valve controlled in response to a control signal from a control device. A spill ring of a fuel injection pump is moved by the piston mechanism, and torque characte... | 01/29/1985 |
| 4483297 | Fuel injection pump for internal combustion engines A fuel injection pump is proposed, which has a centrifugal governor disposed in the suction chamber of the fuel injection pump, the governor having a sleeve displaceable on a piston, and a pressure chamber enclosed in the interior of the governor sleeve, ... | 11/20/1984 |
| 4475519 | Fuel injection system for internal combustion engines A fuel injection system is proposed which serves to inject fuel into the combustion chambers of internal combustion engines. The fuel injection system includes at least one inlet and one outlet line each for the fuel, at least one pump piston to supply th... | 10/09/1984 |
| 4474157 | Fuel injection pumping apparatus A fuel injection pumping apparatus of the rotary distributor type has pumping plungers located in a bore in the distributor member. A cup shaped member surrounds the distributor member and has slots in which are located cam followers. The cup shaped membe... | 10/02/1984 |
| 4470393 | Injection pumps for internal-combustion engines This invention relates to the injection pumps for internal-combustion engines to which the fuel is supplied by a feed pump and aims at obtaining a speed signal by adjusting the pressure within a chamber (35) closed by the bias of centrifugal masses (18) o... | 09/11/1984 |
| 4462370 | Fuel injection pumping apparatus A fuel injection pumping apparatus of the axially slidable rotary distributor type includes a cup shaped member mounted on a drive shaft and a distributor member which as a bore containing pumping plungers. The outward movement of the plungers is controll... | 07/31/1984 |
| 4459957 | Fuel injection pump The invention relates to a fuel injection pump having a governor which functions in accordance with rpm, wherein springs engage an adjusting member, of which one spring acts as the starting spring and at least a second available spring acts as the governo... | 07/17/1984 |
