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Class 123/508 - Pumping member driven by the internal combustion engine valve operating mechanism


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter wherein the pump has a working member which
No. of patents: 127
Last issue date: 05/07/2013


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NumberTitleIssue Date
5829414Fuel supply system for multi-cylinder engine
In a fuel supply system for a multi-cylinder engine, a pump driving cam is provided between an intake cam and an exhaust cam on a camshaft. The pump driving cam and a fuel pump are interconnected by a pump driving member. The pump driving member is slidab...
11/03/1998
5823154Internal combustion engine with a cam drive
The invention relates to an internal combustion engine having a cylinder head with a cam drive, which has a rocker arm pivotably supported in the cylinder head. A roller is supported in the rocker arm in which the roller rolls on a cam path of a cam of a ...
10/20/1998
5806474Self injection system
A fuel injection system for an engine having a combustion chamber, the injection system having at least one fuel injector with a hydraulically operated actuator for amplifying the pressure of fuel injected from the injector into the combustion chamber, th...
09/15/1998
5806499Dedicated overhead cam shaft for unit injector
The present invention provides an internal combustion engine drive train actuating assembly which includes a dual overhead cam shaft arrangement wherein a pair of cam shafts is supported in the head section of the engine. One cam shaft is positioned to ac...
09/15/1998
5732682Fuel amount control
A method and a device of controlling the amount of fuel delivered to a combustion engine (1), e.g. of two-stroke or four-stroke type, wherein the fuel is supplied through an intake passage (2) intended to deliver air (3) and fuel (4) to the cylinder (5), ...
03/31/1998
5713335Variable injection timing and injection pressure control arrangement
In accordance with preferred embodiments of the invention a timing adjustment device includes a cam follower that is engaged between an overhead cam and an injector rocker arm, and is mounted on a rotatable eccentric shaft. The geometry of the eccentric s...
02/03/1998
5647325Fuel injection device for internal combustion engines
A fuel injection device for internal combustion engines comprises a unit injector for each cylinder and a rocker arm driving the pump piston of each injector, the rocker arm consisting of a rigid portion and a spring portion mounted under tension to the r...
07/15/1997
5603303High pressure fuel supply pump
A high pressure fuel supply pump comprises a cylinder, the upper part of which is exposed to the outside of a head cover that is a part of the engine housing, and is fixed to the head cover by means of bolts, not shown. The remaining portion of the high p...
02/18/1997
5588413Engine assembly with leaf spring cam follower
An engine assembly having an engine block with at least one cylinder disposed therein, a fuel injector for periodically injecting fuel into the cylinder, a vertically disposed pushrod, a rocker arm disposed for periodic movement and having a first end dis...
12/31/1996
5553592Fuel injection arrangement for a multicylinder internal combustion engine
In a fuel injection arrangement for a multicylinder internal combustion engine having inlet and exhaust valves operated by rocker arms pivotally supported on a hollow rocker arm support shaft, fuel is supplied from a high pressure fuel pump to fuel inject...
09/10/1996
5542315Elephant's foot adjusting screw assembly for internal combustion engine
A sliding friction- and wear-resistant elephant's foot or swivel pad adjusting screw assembly for contacting an actuating member interface in an internal combustion engine is provided to transmit arcuate motion into reciprocal motion. The assembly include...
08/06/1996
5540207Camshaft drive
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 a rocker arm (3, 5...
07/30/1996
5507261Four cycle engine with two cycle compression braking system
An on/off compression braking system is provided which when actuated controllably opens one inlet valve and one outlet valve in response to the actuation of the injector unit rocker arm and deactivates the exhaust valve rocker arm. This braking system the...
04/16/1996
5462028Fuel pumping apparatus
A fuel pumping apparatus for supplying fuel to an engine includes a pumping plunger housed in a bore one end of which connects with an outlet and also by way of a valve with a source of fuel under pressure. Also provided is a further plunger housed in a f...
10/31/1995
5435286Ball link assembly for vehicle engine drive trains
A ball link assembly in which a link member has a semi-spherical cavity formed in each end for rotatably receiving a respective complementary spherical bearing ball formed, preferably, of a ceramic material. Each ball is freely retained by a ball retainer...
07/25/1995
5427073Fuel pump
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 pair of cam shafts ...
06/27/1995
5419298Internal combustion engine
A fuel injection pump element 15 is mounted in an engine crankcase (1) adjacent its associated cylinder 9, and in substantially parallel orientation thereto so that the high pressure outlet 20 of the injection pump element 15 is close to the injection val...
05/30/1995
5390642Fuel injection system arrangement for an internal combustion engine
In a fuel injection system arrangement comprising as components for each cylinder of an internal combustion engine a pump, a solenoid valve and an injector mounted on the housing of the internal combustion engine, at least one component of the fuel inject...
02/21/1995
5323750Integral engine valve cover and fuel pump
A fuel pump body has a chamber with one wall formed by an external diaphragm having a stem connected thereto. The fuel pump body is attached to the outside of a valve cover for a gasoline engine and the valve cover has a depression that forms an enclosure...
06/28/1994
5287840Cam sections for a "V"-type diesel engine
A unit cam section for each bank of cylinders in a "V"-type engine has a predetermined cam orientation between the fuel cam and the air cam and between the fuel cam and the exhaust cam wherein a first unit cam section has a fuel cam to air cam angle of be...
02/22/1994
5285756Gaseous fuel injection valve and actuator
The improved fuel injection valve assembly includes a valve body adapted for mounting in a cylinder head of a reciprocating gas engine including a valve seat sealing between the cylinder head and the valve body; a valve stem with a frustoconical end porti...
02/15/1994
5237976Engine combustion system
An arrangement in a single housing positioned over a piston cylinder of an engine of independently operable "on-off" valve actuators, "on-off" valves, hydraulic fluid headers and rails, engine intake and exhaust valves, and unit fuel injector....
08/24/1993
5201300Direct injection diesel engine
In a diesel engine having a combustion chamber formed by a cylinder and piston where fuel is injected into the chamber directly, and provided with a device whereby part of the exhaust gas is recycled into the air intake depending on the running condition ...
04/13/1993
5161496Fuel injection system for internal combustion engines
A fuel injection system for an internal combustion engine comprises at least one fuel injection valve for supplying fuel into the intake passage of the engine, an electronic control unit responsive to operating conditions of the engine for controlling a t...
11/10/1992
5083544compression-ignition engine, in particular for light aircraft
The camshaft of the engine is located centrally and longitudinally in the crankcase, parallel to the crankshaft, and besides operating the valvegear, provides the drive for a fuel injection system of which the pump consists in a number of independent elem...
01/28/1992
5081970Heat-insulating engine with swirl chamber
The heat-insulating engine with swirl chamber of this invention injects fuel at a low pressure along the inner wall surface of swirl chambers having a heat-insulating structure by subsidiary nozzles opened and closed electrically, from the second half of ...
01/21/1992
4966108Sintered ceramic ball and socket joint assembly
A ceramic-metallic interfacing joint assembly is disclosed. The joint assembly includes a pair of interfaced components in a highly loaded, sliding contact in which the contact stresses can be as high as 250,000 psi. Preferably, the pair of interfaced com...
10/30/1990
4962743Injection rate control cam
A cam for controlling the injection rate of fuel in a fuel injection system having a four part cam profile is disclosed. The first 120° is the plunger advancement segment. The next 80° is the advanced dwell segment. The next 100° is the plunger retract...
10/16/1990
4944275Fuel injector train with variable injection rate
A fuel injector train having a variable injection rate includes a fuel injector having a plunger and a plunger biasing device having a predetermined spring rate for controlling the injection rate of the injector. A cam assembly is mounted to impart force ...
07/31/1990
4872427Position controller for a rotatable shaft
The present invention is directed to a system for actuating a cam follower shaft to permit variable timing of the valving events or the unit injectors of an internal combustion engine. A rotatable cam follower shaft is subjected to continuous, alternating...
10/10/1989
4836171Injection-type internal combustion engine
An injection-type internal combustion engine with cylinders arranged in line, with two overhead camshafts, and four valves and a central pump nozzle for each cylinder, and with detachable rocker arms being provided on the cylinder head above the respectiv...
06/06/1989
4794894Ceramic tipped pivot rod and method for its manufacture
A pivot rod, such as a push rod of the type found included in fuel injector drive trains and engine cylinder valve drive trains, has a mounting shaft with an interior receiving space at at least one end thereof, and a pivot insert formed of a ceramic mate...
01/03/1989
4739733Delivery timing regulator
A device for regulating the delivery timing of injector pump elements is presented, whereby the injection pump elements are actuated by a camshaft of the internal combustion engine, said camshaft also being simultaneously employed to operate the intake an...
04/26/1988
4721075Diesel engine
In a diesel engine having a valve operating chamber within which are accommodated intake and exhaust valves, driving system operable to open and close under control those valves, and a unit injector consisting of an injection nozzle and an injection pump ...
01/26/1988
4662328Governor driven pump for an engine
An internal combustion engine is provided with a lubricating system and a full flow oil filtering circuit arranged in parallel with the main oil lubricating circuit of the engine. The lubricating system includes drive means an oil lubricating circuit for ...
05/05/1987
4649887Pump for supplying pressurized fuel to fuel injector of internal combustion engine
A pump including a plunger slidably disposed in a pump body, a transmitting member connected to the plunger, a coil spring which urges the plunger, and a cam urging the plunger against the coil spring. The plunger defines a pump chamber in the pump body. ...
03/17/1987
4615323Pump/nozzle unit for fuel injection in internal combustion engines
A pump/nozzle unit having an injection nozzle installed at at least approximately right angles to the longitudinal axis (A) on the pump housing of the piston injeciton pump. The injection pump is supported with a support face, which embodies its most extr...
10/07/1986
4602604Air compressing reciprocating in-line compression-ignition internal combustion engine
An air compressing reciprocating in-line compression-ignition internal combustion engine comprises for each cylinder a fuel injection unit comprising a fuel injection pump and a fuel injection nozzle. Each fuel injection unit is operated by a camshaft via...
07/29/1986
4567872Unit fuel injector and system therefor
A cam shaft operated fuel injector having an elongated fuel injection nozzle, a linear pumping plunger with an axis normal to the axis of the nozzle in two embodiments and parallel to the axis of the nozzle in three embodiments and ball check valve means ...
02/04/1986
4538561Valve arm chamber apparatus for diesel engine
A valve arm chamber apparatus for a diesel engine having, on a cam shaft mounted above intake and exhaust valves thereof, fuel cams for rocking fuel valve arms for driving unit injectors mounted in a cylinder head and intake and exhaust valve cams for roc...
09/03/1985
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