Abstract: A compact self-compensating hydraulic lash adjuster (tappet) particularly suited for use in internal combustion engines having overhead cams. A flexible rubber member forms a one-way valve and seal thereby creating a reservoir of hydraulic fluid. This reservoir instantaneously provides the necessary hydraulic fluid for proper tappet operation, even after sustained periods of engine shut-down. A hydraulic compression chamber is contained in a piston assembly positioned within the center of the overall tappet assembly. This construction facilitates the substitution of piston assemblies of varying axial dimension thereby permitting the basic structure to be used in engines having differing tappet length requirements.

Abstract: A fuel injection pump is provided with an improved spill control mechanism to accurately supply a desired fuel charge to an internal combustion engine. The fuel pump includes a rotor having a charge pump for pressurizing measured charges of fuel for delivery to the engine and a cam ring adapted to rotatably receive the rotor and to actuate the charge pump upon rotation of the rotor. The cam ring is angularly adjustable to control the timing of the pressurized fuel delivery to the engine. A spill collar mounted adjacent to the cam ring and adapted to rotatably receive the rotor includes a spill port for diverting fuel flow from the charge pump upon registration of a spill passage in the rotor with the spill port in the collar. A pivotal crank mounted on the cam ring and engageable with the spill collar is provided for adjusting the angular position of the spill collar relative to the cam ring to control the amount of fuel diverted from the charge pump.

Abstract: A fuel injection pump with a metering valve for metering the fuel charge delivered by the pump and a torque cam piston to set a maximum fuel charge limit, the torque cam piston being axially positioned by fuel transfer pressure in accordance with the pump speed and being angularly adjusted manually. Several embodiments of a torque cam profile are shown in which the cam profile is provided by one or more surfaces of revolution and wherein at least one such surface of revolution has an axis inclined to the axis of the piston.

Abstract: A fuel injection nozzle of the outwardly opening poppet pintle type for use with internal combustion engines is provided which is economical to fabricate, assemble and recondition and which, at the same time, is capable of improved delivery and dispersion of fuel for optimum engine functioning even when the engine is intended to be operated at high speeds. The nozzle utilizes a nozzle holder which includes a separable holder body and holder body tip, both formed with an axial fuel passageway therethrough, and having aligned enlarged counterbores forming a chamber in which the upper end of a pintle valve is suspended by attachment to a slidable cup-shaped combination upper spring seat and valve hanger. The lower spring seat is also cup-shaped and is seated in the counterbore of the holder body tip to align the enlarged counterbores.

Abstract: A liquid fuel injection pump having a rotary distributor for unrestricted delivery of metered charges of fuel in succession to the fuel injection nozzles of an associated engine and having a snubber orifice with a snubber port provided either in the distributor stator for each distributor outlet port or in the rotor for the distributor delivery port for transmitting and damping a reverse pressure wave from each fuel injection nozzle back through the distributor.

Abstract: A rotary fuel injection pump with pump plunger stroke regulating means provided by an axially adjustable abutment slide for each plunger for limiting its outward stroke in accordance with the axial position of the abutment slide established by the angular position of a control ring.

Abstract: A mixing valve includes a sleeve with axially spaced inlet and outlet ports and a valve member movable within the sleeve to control flow from the inlet to the outlet. There is a seal at the inlet port, which seal extends through the sleeve and into contact with the valve member. The valve member has a first portion adjacent the inlet port to control flow of the fluid therethrough and a second portion adjacent the outlet port to similarly control flow of fluid therethrough. The first and second valve member portions are spaced apart a distance such that movement of the valve member toward a closing position causes the second portion to close the oulet port before the first portion closes the inlet port thereby reducing pressure on said seal means at closure of said inlet port.

Abstract: A valve structure for use in a two handle faucet environment includes a sleeve and a valve member positioned within the sleeve and rotatable therein. The sleeve has an inlet and an outlet and a path of flow therebetween. The valve member has an opening which is used to connect the inlet and outlet and thus form a part of the path of flow. An annular seal member is fixed on the valve member and spaced from the opening, which seal member is used to close off communication between the inlet and outlet. At no time is the path of flow through the seal member, thus preventing any excessive pressures being applied to the seal.

Abstract: An edge filter for a fuel injection nozzle is provided with an improved connection to the stem of the nozzle. The connection comprises opposed cylindrical guide sectors on the filter having axial knurls that extend less than the full length of the guide sectors thereon. The knurls, which are case hardened, provide secure interference interengagement with the softer counterbore of the nozzle's fuel inlet stem. The guide sectors advantageously provide an edge filtering function as well as a guiding function.

Abstract: A fuel injection pump for internal combustion engines is provided with an engine speed responsive governor having a governor arm suspension system that includes a spherical pivot fulcrum and a complimentary concave pivot surface on the governor arm to permit multi-directional articulation of the arm thereby preventing the slidable governor sleeve from binding on the drive shaft of the pump driven by the engine.

Abstract: A self-cleaning valve includes a fixed valve member having inlet means, a movable valve member positioned adjacent the fixed valve member and having an inlet port movable into register with said inlet means, and seal means carried by the fixed valve member and in sealing engagement with the movable valve member. A shear member is positioned on the opposite side of the movable valve member from the seal means and is in intimate contact with the movable valve member. Movement of the movable valve member to control the flow of fluid passing from the inlet means to the inlet port causes the inlet port to slidingly move adjacent and between the shear member and the fixed valve member to remove or break up foreign material held by the inlet port.

Abstract: An automatic pressure responsive shower head includes an outer housing and a body member positioned within the housing and attached thereto. The body member has a water discharge at one end and is connected to a swivel member at the other end. There are water passage means within the body member between the swivel member and the body member water discharge. A water pressure responsive control member is positioned within the body member and is effective to control the flow of water through the body member water passage.

Abstract: This invention relates to fuel injection pumps of the type employed for supplying measured charges of fuel to the nozzles of an associated internal combustion engine. More particularly, the invention relates to such fuel pumps of the rotary distributor type having pumping plungers which are slidably mounted in radial bores of a rotary distributor and are surrounded by a generally circular cam ring having pairs of inwardly directed cam lobes which actuate pairs of pumping plungers inwardly simultaneously for pressurizing the charge of fuel between the plungers to a high pressure.The subject invention overcomes the above problems by angularly spacing a pair of pumping plungers and the cooperating cam lobes as required for the specific engine application and avoids the undesired side loading by creating a hydraulic counterbalancing force which automatically changes as the side loading created by the reaction forces between the cam lobes and the pumping plungers changes with speed and rate of delivery of fuel.

Abstract: A liquid fuel injection system with a snubber valve assembly with a low cost, four-part snubber valve mounted within a valve body and in addition in a second embodiment a low cost, two-part fuel pressurizing valve mounted within the valve body upstream of the snubber valve.

Abstract: A shower-tub diverter valve has a housing with a diverter chamber and a water inlet and shower and tub outlets in communication with the chamber. A diverter formed of a stem and a loosely attached cylindrical member are reciprocal in the chamber between a position providing communication between the inlet and the tub outlet, and a second position in which the diverter cylindrical member blocks said communication. The diverter cylindrical member is in substantial sealing relation with the tub outlet when in the blocking position. The cylindrical portion of the diverter is movable relative to the stem and the diverter chamber includes guide means for use in aligning the diverter cylindrical portion as it moves between the described positions.

Abstract: An internal combustion engine tappet comprising a sintered powdered metal wear resistant composition having a matrix formed from iron powder, carbon in the range of 0.50-1.0% by weight, and a ferroalloy powder with a mesh size of +50-325 acting as a nucleus for diffusion of the alloying metal into the surrounding iron particles. The alloying metal in the composition is in the range of 1-10% by weight and is selected from the group consisting of chromium, titanium, boron, vanadium, columbium, molybdenum, tantalum and tungsten. The iron, carbon and ferroalloy are briquetted at a pressure of 40-60 tons/sq.in. and sintered, in solid phase, at a temperature of 2000.degree.-2100.degree. F. in a reducing atmosphere. The resulting product is heterogeneous and has hard ferroalloy nuclei and interconnected porosity with a density at the tappet wear surface of approximately 6.8-7.0 gm/cc.

Abstract: Designs for variably controlling the maximum quantity of fuel which can be delivered by a pumping stroke of pumping plungers are disclosed. These include combinations of resilient and rigid leaf spring arrangements for controlling the maximum pumping stroke with and without speed responsive control valves or cams, to provide excess fuel for starting and for shaping the maximum fuel delivery curve according to speed.

Abstract: A fuel injection pump having a mechanically adjustable servo valve for controlling the timing of the pumping event is disclosed. A pivoted lever has one end which engages the spring seat of a timing control plunger servo valve which is also subjected to a speed related hydraulic signal and another end which engages a cam clamped on the throttle shaft to pivot the lever according to the rotational position of the shaft. The profile of the cam is such as to retard the timing of the pumping stroke when the charge delivered by the pump is increased so that pressure built up in the pump is delayed and injection pressure is reached at a substantially constant crankshaft angle regardless of variations in speed and load on the engine. The mechanism is failsafe since it cannot interfere with the movement of the throttle shaft to reduce fuel delivery.

Abstract: A fuel injection nozzle and clamp assembly includes an improved nozzle holder having an inlet fitting arrangement which uniformly distributes clamping forces to secure the nozzle to an engine cylinder head without exerting a bending moment on the nozzle. A fuel inlet member extends through a cross bore in the nozzle holder and projects outwardly on opposite sides thereof. A channel-shaped clamp member straddles the nozzle holder body and is provided with notches which receive and engage the projecting ends of the inlet member on opposite sides of the nozzle holder body to secure and orient the nozzle in the cylinder head.

Abstract: A diesel fuel injection system having a positive displacement fuel delivery valve with a valve piston with a conventional passage for delivering fuel to injection nozzles and a second more restricted passage at an intermediate axial position of the valve piston for delivering such fuel at lower pumping rates, such as during low speed engine cranking, so that the valve piston is displaced a lesser amount at lower pumping rates and thereby increase the downstream residual fuel pressure when the pumping rate is lower.