Abstract: A rotary valve for an internal combustion engine comprising: a tapered valve body with a passage for flow of gas starting at one end of the taper and terminating in two places 180 degrees apart on the face of the taper; a pair of rigid seals, 180 degrees apart, which are carried by the valve body and alternately seal the opening to the combustion chamber; pressure cavities behind the pads, sealed by a flexible seal, which use the pressure of the compression stroke to bias the pad which is over the opening to the combustion chamber into contact with the area around this opening, forming a gas tight seal; and a drive shaft for rotating the valve body. A clutch is actuated intermittently by an external microcontroller to engage the drive shaft of the valve with a spinning pulley. During the moving portion of the valve cycle the intake or exhaust gases pass through the flow passage. During the stationary period of the valve cycle the compression and combustion strokes of the engine occur.

Abstract: A bearing support member has two support arms extending in opposite directions along an axis and is adapted for mounting about a stud means. A bearing cup is fixed to the rocker arm, extending over each support arm. Rolling members are provided within an annulus formed between the support member and the bearing cups such that the rocker arm is free to oscillate rotatably with respect to the bearing support member. The bearing cups have a bottom surface forming an interference fit, axially, with an end surface of the bearing support member such that a preload is applied to the bearing support arm to reduce and control axial play. A protrusion and cutouts facilitating the preload and a method of assembly are also disclosed.

Abstract: Each valve of an internal combustion engine is driven by a separate rotary electric motor. A cam mechanism for the valves comprises a cylindrical cam in line with the motor axis and the valve stem, the mechanism having inner and outer cylinders, one cylinder rotating with the motor and carrying a cam and the other containing a cam follower and reciprocating with the valve.

Abstract: A hydraulic tappet-clearance compensating arrangement having no check valve includes an outer cylinder formed with a cup tappet and a piston axially displaceable in the outer cylinder and forming a pressure chamber therein. The outer cylinder is formed with a through-hole and a channel axially positioned so that a flow connection for the pressure medium is provided between the pressure chamber and a reservoir only during the base circle phase of the valve-operating cam and a flow connection is provided between the reservoir and a pressure medium supply only outside the base circle phase of the cam.

Abstract: A flow restriction controlled variable engine valve system includes a housing slidably mounted in the engine housing and movable therein in response to movement of an engine cam. A sleeve is telescoped within the housing in fluid communication with the engine oil supply and a portion of the housing. A control rod is carried by the sleeve and projects into the aforementioned portion of the housing to restrict fluid flow therebetween. A check valve is carried by the housing and closes off the fluid communication between the housing and the sleeve after movement of the housing in response to cam movement to lock up the sleeve and housing for further movement together with the sleeve being operatively connected to the valve to open it upon further movement of the locked up sleeve and housing. A velocity reduction spring is interposed between the sleeve and the valve.

Abstract: An engine timing drive for driving a camshaft and an accessory such as a balance shaft has a transmission member including a fixed phase output for driving the accessory and a variable phase output for driving the camshaft. A preferred embodiment incorporates a planetary cam phaser in a driven sprocket that also carries a fixed phase output gear as an accessory drive.

Abstract: A stratified-charge internal combustion engine (10) with fuel injection and dual ignition has a fuel injector (60) and two spark plugs (70) and (72) mounted in a cylinder head (16). The cylinder head (16) forms a combustion chamber (44) in conjunction with the cylinder (14) and piston (18). The spark plugs sequentially ignite the fuel plume (64, 66) emitted by the fuel injector simultaneously with the injection of the fuel. The piston (18) has a recess (80) that has its narrow portion in proximity to the injector and spark plug (70) and wider portion aligned under spark plug (72).

Abstract: An automatic oil additive injector is disposed over the drain opening in a bottom wall of an engine oil pan and extends into the oil pan. A side port is provided in a housing of the injector for allowing oil to drain therethrough when the oil drain plug is removed. Primary and secondary valve assemblies and a pump operator provided in the housing are activated upon removal of the drain plug to allow a chamber therebetween to fill with a predefined volume of additive, preferably silicone fluid, from a reservoir of the injector and which, upon engagement of the drain plug, dispense the fluid into the oil pan at each oil change to decrease aeration of the oil. In a second embodiment, the additive injector and reservoir are incorporated in the lubricating oil filter header.

Abstract: A malfunction sensing apparatus for a fuel vapor control system includes a fuel tank and a canister containing an adsorbent for adsorbing fuel vapor. The canister has an inlet connected to the fuel tank and an outlet. A purge control valve is connected to the outlet for connecting and disconnecting the outlet of the canister from the air intake pipe of an engine. A pressure sensor senses the internal pressure of the fuel tank. A malfunction sensing means responsive to the pressure sensor senses a malfunction when the purge control valve is open and the pressure sensed by the pressure sensor is above a prescribed value. A prohibiting means senses the rate of change and/or the magnitude of the pressure sensed by the pressure sensor with the purge control valve closed and prohibits malfunction sensing by the malfunction sensing means when the rate of change of the pressure exceeds a prescribed rate and/or the magnitude of the pressure exceeds a prescribed value.

Abstract: The governor of the present invention includes the reverse Angleich lever 9 one end of which is jointed to the control block 5 which moves in the axial direction in accordance with the movement of the fly weight 3, and the other is jointed to the mid-portion of the control lever 18. At the mid-portion of the reverse Angleich lever 9, there is provided the stopper pin 25, and on the tension lever 12, there is provided the abut member 26 for detachably abutting to the stopper pin 25.When the cam shaft 2 rotates at a high speed, the stopper pin 25 abuts to the abut member, avoiding the rotation of the reverse Angleich lever 9. Thus, the reverse Angleich characteristic can be obtained.

Abstract: The design and manufacture of past fuel injection systems required extensive modification of the cylinder head in order to provide and actuate hydraulically actuated fuel injectors. Additionally, methods to avoid the cylinder head modifications have presented reliability concerns. The present invention overcomes these problems by providing an adapter assembly releasably connected to the cylinder head. The adapter assembly includes an adapter which has an integrally formed actuating fluid manifold and an integrally formed fuel manifold. The present invention provides a means for communicating between the actuating fluid manifold and the actuating fluid inlet passage of a hydraulically actuated fuel injector and a means for communicating between the fuel manifold and the fuel inlet passage of the fuel injector. Actuating fluid is communicated through the actuating fluid manifold and into the actuating fluid inlet passage in order to actuate the fuel injector.

Abstract: A device for governing the idling rpm of an internal combustion engine which prevents a leakage. A closing element is axially and radially displaceable by a second spring and maintained to be angularly movable on the valve element and/or the regulator housing. Frustoconical surfaces are advantageously embodied on the closing element, the regulator housing and the valve element, so that the closing element can be centered on the conical seats. The springs are disposed parallel to each other, and the closing element is acted upon by a spring force in the closing direction and the valve element is acted upon by a spring force in the opening direction. The device is particularly suited for governing the idling rpm of a mixture-compressing, spark-ignition internal combustion engine by means of controlling the quantity of aspirated air flowing in a flow line to the engine.

Abstract: An actuator for controlling the flow of air through an air inlet port, particularly a secondary air inlet port, in an intake manifold in an internal combustion engine. The actuator actuates means disposed in the throat of the inlet port for opening and closing said port. The actuator comprises a housing, a reversible motor disposed in the housing, power transmission means with said motor comprising a non-planetary gear train disposed in the housing, and a shaft rotatably mounted in the housing operably engaged at one end thereof with the power transmission means and at its other end with the means for opening and closing the air inlet port.

Abstract: A mechanism for providing a continuous supply of oil on camshaft lobes used in an overhead cam internal combustion engine. The mechanism includes camshaft bearing caps affixed to the engine about the camshaft journals. Protruding from the side surface of the central portion of the bearing caps are oil diverter pads. The oil diverter pads cause oil that builds up on the surface of the camshaft journals to be diverted toward the camshaft lobes to provide lubrication between the camshaft lobes and the roller finger followers.

Abstract: An improved on-board storage and use system employing a gaseous hydrocarbon fuel to power internal combustion engine vehicles is disclosed. Storage of the fuel by sorption in a plurality of storage vessels at above atmospheric pressure enables subsequent removal for use during vehicle operation to include using an air stream in a particular manner for greater fuel recovery.

Abstract: A twelve-point rocker-arm adjusting nut (10) designed to be threaded into a rocker-arm stud to adjust the height/clearance between a valve and a rocker arm (44). The nut (10) consists of an axially elongated cylindrical body (12) and a hex-socket tipped set screw (32). the nut (10) has a threaded bore (20) therethrough that extends to near the lower surface (18) of the nut. From this lower surface extends upwardly a thread-free stud entry port (24). Around the upper section of the nut (10) is located a twelve-point wrenching section (26) that includes at its lower end a wrench non-slip lip 30. The wrenching section (26) serves both as a wrench gripping section and for directing oil to provide cooling for the rocker arm base and pivot ball washer (46) interface. To operate the nut (10), a standard twelve-point wrench is used to rotate the nut until the proper height/clearance between the valves and the rocker arm is achieved.

Abstract: For adjusting the relative rotating position of a camshaft of a reciprocating engine with respect to a second camshaft, a tensioning arrangement of the chain which winds around both camshafts is displaced transversely to the chain. The tensioning arrangement includes two hydraulic pistons which can be moved in mutually opposite directions, are braced with respect to one another by a helical spring and, for the adjusting, can be alternately acted upon by hydraulic pressure. The adjusting force acting upon the hydraulic pistons counteracts the spring force applied to the hydraulic pistons.

Abstract: An induction system for an internal combustion engine includes a turbulence-inducing structure, 18, extending across the flow path of a primary runner, 10. The turbulence-inducing structure, 18, is used in combination with a dual or single port intake design.

Abstract: A known fuel injection valve that can be secured to a fuel distributor by rotating the fuel injection valve about a longitudinal valve axis. A first electrical contact element extends out of the valve housing, parallel to the longitudinal valve axis. Such fuel injection valves can be electrically contacted by a bank of contacts that can be mounted on the fuel distributor in a direction of the longitudinal valve axis. The novel fuel injection valve includes first electrical contact elements which extend radially outward. By rotating the fuel injection valve about its longitudinal valve axis, an electrically conductive connection can be made between first electrical contact elements and second electrical contact elements that electrically contact the connection in the fuel injection valve. In this way, a simple, very compact, safe and secure electrical contacting of the fuel injection valves is attained.

Abstract: A dual cam cover has a molded housing made, preferably, of a thermoset polyester composite material replacing an aluminum casting. An integral stiffening bar added between raised cam chamber walls includes retaining slots for holding associated spark plug wires. Peripheral mounting bosses include cylinder like angled ribs for sturdy support with a pleasant appearance. Isolated mounting screws combine with resilient gaskets in the peripheral flange and around central spark plug and fastener openings to provide sealing and mounting isolation. Improved oil separators include one piece metal baffles with formed drain openings. A bushing and a threaded insert are molded in for mounting a vent tube and an accessory.