Abstract: A spill port control valve assembly for a fuel injection pump of the radial plunger type having a plunger barrel and a fuel inlet-spill port in the wall of the barrel, the port being controlled by a tiltable valve that is self-aligning and actuated by a solenoid to a closed position to permit pressurization of the fuel.

Abstract: A variable venturi down-draft carburetor comprises a one-piece unitary casting that defines an induction passage and upwardly open cavities constituting a float chamber and a recess in which a movable venturi member is housed. A throttle valve, main fuel jet, and venturi member are all housed wholly within the confines of the casting, and the casting is covered by a single plate that closes the upwardly open cavities and defines an air inlet orifice to the induction passage. By housing the throttle valve, main jet and venturi in one unit, operation of the carburetor is unaffected by variations in the cover plate produced by manufacturing tolerances. Access to the interior of the carburetor is achieved simply by removal of the plate, which does not, in itself, affect the adjustment of the carburetor. The casting preferably includes integral mountings for a vacuum motor, and/or acceleration pump, and/or an automatic choke.

Abstract: An engine exhaust gas recirculation (EGR) system is provided in which a sonic flow EGR valve is moved to open positions to establish a different constant rate of flow at each open position of the EGR valve in response to air pressure acting on a servo means secured to the valve, the air pressure force being controlled by changes in a control vacuum opposing the air pressure force and modified by an air bleed device as a function of changes in engine exhaust gas backpressure levels, to provide an EGR valve movement that varies essentially in proportion to changes in engine air flow.

Abstract: A one-piece combination oil fill/air breather cap for an automotive type engine positive crankcase ventilation (PCV) system that includes a filter and oil separator chambers below the filter defined by partitions or baffles upon which the oil droplets impinge during reverse flow operation of the PCV system; a double lip flared annular seal operating in tension being sandwiched between the cap lower surface and the engine rocker arm cover to minimize oil leakage.

Abstract: An automotive type exhaust gas recirculation (EGR) system has two modes of operation, a first one that regulates EGR flow at a constant percentage rate as a function of throttle valve position independently of exhaust gas backpressure changes, and a second one that provides a variable percentage rate of flow of EGR gases in response to changes in exhaust gas backpressures, both modes utilizing carburetor ported vacuum modified by an air bleed device as the EGR valve opening force.

Abstract: An EGR assembly of a sonic flow EGR valve and a fluid pressure actuated servo operated by air pressure modified by an air bleed device controlled in response to changes in carburetor venturi vacuum levels to provide EGR valve openings in proportion to engine air flow increases.

Abstract: An automatic choke for a carburetor comprises a fuel enrichment valve (59, 60) for controlling the flow of fuel into a carburetor, a first operating lever (54) movable by a temperature sensitive element, e.g. a bimetallic coil spring, into engagement with an end stop (100); a second operating lever (57) for opening and closing the fuel enrichment valve (59, 60); a resilient connection, e.g. a coaxial coil spring (64), between the first and second levers (54, 57) by which the first lever moves the second lever to open the fuel enrichment valve at low temperatures; and an override lever (72) operable by a vacuum control device (73-80) to move the second lever against the bias of the resilient connection to close the fuel enrichment valve at low temperatures and low engine loads.

Abstract: An automotive type fuel ignitor having an ignitor chamber continuously exposed to the engine combustion chamber temperatures and pressures for a first stage of compression of an air/fuel mixture thereon during the compression stage movement of the engine piston, a piston in the ignitor chamber being moved by a high pressure hydraulic force selectively applied thereto through a second stage of compression to raise the mixture charge pressure and temperature to the auto-ignition level, forcing the flame jet into the main combustion chamber, suitable inlet and outlet check valves controlling the supply of mixture charge to the ignitor chamber.

Abstract: A portable lightweight drill assembly is mounted against one side of a sheet of flat glass having a hole or crack to be repaired; the drill shaft extends through the hole or crack to mount cutters on both sides; the cutters are spring biased against the glass to exert equal cutting force and simultaneously rotatable with the drill shaft to cut the hole from both sides to a diameter larger than the hole to be repaired, for insertion of a glass repair plug.

Abstract: A one-piece elastic support having an outer loop-like main body portion secured to the vehicle body with a tether or strap projecting in a cantilever manner from the loop into the central opening for supporting a portion of the exhaust system from the lower end of the strap, the lower end of the strap having a tab or cam that projects beyond the lower end of the loop for contact with it to prevent undue deflection of the strap, the engagement of the tab effecting a stiffer or more rigid suspension thereafter.

Abstract: 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 pressurization of the fuel for injection past the delivery valve, the ball valve being self-aligning.

Abstract: A carburetor is provided with an air bleed passage connected to the main fuel well; the passage being controlled by a solenoid opened, normally closed valve; the solenoid being electrically connected in series arrangement with a venturi vacuum actuated, normally closed switch and a wide open throttle (WOT), normally open switch closed by movement of the throttle valve to a wide open position, the electrical circuit being completed at low mass air flows, WOT operation to open the air bleed line and lean out the air/fuel ratio of the mixture charge; the electrical circuit being broken when venturi vacuum reaches a predetermined level indicating maximum horsepower will be better obtained by a richer air/fuel ratio.

Abstract: A retainer for supporting and locating the fuel filler pipe relative to the fuel tank of a motor vehicle, the retainer having a keyway that cooperates with a bead on the filler pipe to deter axial separation once assembled, attachment of the retainer to the fuel tank pivoting the retainer against the pipe thereby resiliently clamping the pipe to the fuel tank.

Abstract: A fuel injection pump has a single plunger either electromagnetically or hydraulically actuated for flow of fuel into a fuel distribution chamber from which the fuel is distributed individually to each engine cylinder past a series of small solenoid controlled outlet valves actuated one at a time in sequence with the engine firing order.

Abstract: An apparatus for stopping and restarting a motor vehicle by means of a flywheel alternately clutched to the engine crankshaft to be driven thereby or declutched to rotate freely for subsequent driving of the engine to restart the engine, the engine being shut off in response to release of the accelerator pedal deactivating switches controlling the clutch mechanism after a predetermined time delay longer than the time normally required for a gear shift change.

Abstract: A thermostat assembly for an engine cooling system having a coolant flow passage extending from an inlet connected to the engine and an outlet connected to the engine radiator, a thermostat valve positioned in the inlet to control the flow of fluid, a bleed valve mounted in an air bypass passage to allow air past the thermostat valve during filling, and an integral fill passage through which the whole cooling system may be filled; the fill inlet being the highest point in the housing, the bleed valve being positioned at a level higher than the thermostat valve so that air is completely purged from the system during filling; a further separate air vent passage communicating with the bypass passage to vent air from the top of the engine to which the housing is fixed.

Abstract: An engine constructed with a hemispherically shaped combustion chamber having inlet and exhaust valves flush mounted in the surface of the chamber with centerlines perpendicular to the chamber surface and intersecting the cylinder bore centerline at a common point; the valve train components for each valve all acting in a single plane and having centerlines that together converge towards a common point adjacent the cylinder bore centerline, the valve train planes of each pair of inlet and exhaust valves being canted with respect to each other and to the camshaft axis, a single overhead camshaft being centrally located between the inlet and exhaust valves.

Abstract: A carburetor accelerator pump overtravel lever has an additional stop member connected to it that is engaged at times by a cam rotated by the carburetor choke valve to limit the stroke of the accelerator pump as the temperature increases towards the normal engine operating level.

Abstract: A cylinder head for an automotive type engine has an overhead camshaft and oil collecting basins adjacent the tappet guides to collect excess oil exuded from the guides; the basins have holes aligned with the cams on the camshaft to drip oil thereon for proper camshaft lubrication; inserts may be used in the oil drip holes, or specially formed drip edges adjacent the holes may be used.

Abstract: A unit fuel injector assembly consisting of a plunger type pump surrounded by a solenoid actuator, the voltage to which is controlled to vary the duration and magnitude of fuel pumped, thereby controlling the plunger stroke, a position feedback device providing a correction to the fuel flow to match actual flow with scheduled flow.