Abstract: A fuel rail assembly for distributing fuel to a plurality of electromagnetic fuel injectors which in turn supply atomized fuel to the cylinders of an internal combustion engine. Each of the injectors has a fuel inlet section that is removably held in an injector socket in the rail. Inside the rail a filter member, having a relatively large surface area, is provided at each injector socket to filter only that porton of the fuel which flows into its respective socket immediately prior to the entry of the fuel into the socket. The injector sockets and the filter members are designed so they have mating cylindrical sections which allow the filter members to be telescoped over the corresponding cylindrical sections of the sockets. Each filter member has a dome section which covers a fuel inlet aperture in the socket. The dome section extends from the cylindrical section into an open space above it where the apex of the dome abuts another member of the rail assembly thereby holding the filter member in place.

Abstract: An oil jet piston cooling device which directs a stream of oil against the inside of a piston of an internal combustion engine. It comprises a hollow body member and an arcuate tubular spout member. The body member is a stepped hollow cylindrical member with an internally valved inlet opening on its smaller diameter upstream end. The smaller diameter body section defines a first portion of an entrance chamber. A second portion of the entrance chamber is defined by a coaxially disposed cylindrical upstream end section of the tubular spout member, which end section is fitted tightly inside the larger diameter section of the body member. The cross sectional area of the interior of each section of the device is equal to or greater than the cross sectional area of each succeeding section taken from inlet to outlet and the passageway is streamlined to reduce tuburlence.

Abstract: A retainer spring clip for holding an end of a fuel injector in an injector socket of a fuel rail. The retainer clip is attached securely to the socket nose end of an injector by a plurality of evenly spaced apart claw elements extending laterally from one side of a planar annular central disk section of the clip at the periphery thereof. An equal plurality of retention spring fingers extending laterally from the other side of the disk periphery are provided to givingly enter a fuel port aperture in a fuel rail injector socket. The claw elements and retention spring fingers have spring sections disposed in the plane of the disk. Additionally, the spring fingers have second spring sections extending laterally from the the first spring sections. Preferably, the claw elements are located at diametrically opposed peripheral positions from those of the spring fingers.

Abstract: A regulating mechanism for maintaining a preselected pressure within the fuel rail portion of a fuel injection system of an internal combustion engine. The regulator has a cannister with a hollow interior which is divided into a biasing chamber and a fuel chamber by a diaphragm assembly. The diaphragm assembly includes a molded diaphragm having a centrally located socket containing a truncated spherical ball. Centrally disposed coaxial tubular members define concentric fuel inlet and outlet passageways communicating with the interior of the fuel chamber. The inner tubular member defines the fuel outlet passageway and has a valve seat which is normally closed by the truncated surface of the spherical ball, subject to being opened by excessive fuel pressure against the fuel chamber side of the diaphragm.

Abstract: An intake manifold assembly comprising sheet metal top and bottom members which define an air intake throat section, a plenum section and a plurality of hollow runners extending from the plenum section to a ported manifold mounting plate integrally attached to the distal ends of the runners. A throttle valve assembly insert is contained in or on the throat section and provided with a passageway for circulating a heating fluid. Provisions are also made for various sensing and control functions. In addition a fuel supply rail, having a number of fuel injector receptacles for holding and supplying fuel to a plurality of separate electromagnetic fuel injectors, is integrally attached to the top of the manifold over the distal ends of the runners. The receptacles each have open top and bottom ends and are attached such that their open bottom ends are in fluid communication with the interior of the runners. The component parts are bonded together by copper bracing in a controlled atmosphere furnace.

Abstract: A low profile fuel injection rail assembly for supplying fuel to a plurality of electromagnetic fuel injectors on an internal combustion engine. The fuel rail assembly is characterized by a plurality of fuel sump chambers defined by linearly spaced apart nodular rail sections which are connected in series by a plurality of tubular rail sections having cross sectional openings of reduced size. A recessed socket which embraces an end of a fuel injector and has an aperture for supplying fuel thereto is formed in each sump chamber.

Abstract: A low inertia springless check valve suitable for operation at high frequencies in a hot environment against a high cyclic back pressure with a relatively constant low input pressure, such as in an automotive engine exhaust air induction system. The valve has a circular elastomeric diaphragm mounted on a supporting frame by means of a retainer disk, a fastener and a diaphragm limiter. A central portion of the diaphragm is compressed between the disk and limiter to cause the originally flat diaphragm to become dished and biased towards the valve seat. The limiter is designed to stabilize, in the flow direction, a portion of the diaphragm extending along the entire length of an adjacent diameter of the diaphragm. The retainer disk also functions in part as a diaphragm motion limiter in the check direction.

Abstract: A low profile fuel injection rail assembly for supplying fuel to a plurality of electromagnetic fuel injectors on an internal combustion engine. The fuel rail assembly is characterized by a plurality of fuel sump chambers defined by linearly spaced apart nodular rail sections which are connected in series by a plurality of tubular rail sections having cross sectional openings of reduced size. Each sump chamber surrounds an injector socket recessed into the bottom of the rail or an injector receptacle recessed into the top of the rail. Fuel is supplied to the injectors through inlets in the sockets or receptacles. Fuel supply and return fitments are mounted at one end of the rail along with means for connecting a fuel pressure regulator having two coaxial fuel passageways.

Abstract: An afterburner device for injecting fresh air laterally into the exhaust gas streams of a multiple cylinder internal combustion engine. The afterburner has a planar gasket section for mounting between the engine block and the exhaust manifold. Exhaust gas stream port holes extend laterally through the gasket section in alignment with similar port holes in the engine block and manifold. A plurality of fresh air input passages within the gasket section extend from the port holes to a fresh air supply plenum section of the afterburner.

Abstract: A rugged fuel rail assembly for holding a plurality of electromechanical fuel injector elements in aligned positions on an internal combustion engine. The beam portion of the fuel rail is comprised of two elongated manifold members with overlapping sides brazed together. One of the manifold members has a series of planar sites with apertures for retaining and precisely aligning a plurality of injector cups. To prevent vapor locks the injector cups are mounted with their cavities in close proximity to the inside of the fuel rail. In addition to being designed for ease of assembly and to provide adequate rigidity without excessive weight, the fuel rail is designed so that various fabricating steps, including the insertion on an internal divider, can be performed from the inside of the rail members prior to assembly.

Abstract: A rugged fuel rail assembly for holding a plurality of electromechanical fuel injector elements in aligned positions on an internal combustion engine. The beam portion of the fuel rail is comprised of two elongated manifold members with overlapping sides brazed together. One of the manifold members has a series of planar sites with apertures for retaining and precisely aligning a plurality of injector cups. To prevent vapor locks the injector cups are mounted with their cavities in close proximity to the inside of the fuel rail. The fuel rail is structurally designed for ease of assembly and to provide adequate rigidity without excessive weight.

Abstract: A compact heat exchanger suitable for use in an automotive exhaust gas recirculation system. It has two interconnected elongated cooling chambers supported within a two piece outer casing. The fluid to be cooled enters the first cooling chamber at an intermediate location, flows towards opposite ends of the chamber then out of the first chamber into the ends of a second chamber through connecting passageways and finally towards an outlet located intermediate the ends of the second chamber. The cooling fluid enters the outer casing at one end flows over and along one side of the first chamber then through an aperture in a flange that divides the casing into two compartments. From this aperture it flows along and over both sides of the second chamber and one side of the first chamber to an outlet located at the same end as the coolant inlet. The component parts are designed to be assembled in a foolproof manner and copper brazed together with relative ease.

Abstract: A tubular metal nipple for joining with the end of a copper tube by means of solder to readily produce a reliable joint in refrigeration plumbing system. The nipple has a inner copper sleeve concentrically spaced from the inside wall of a steel outer casing with an impervious intervening layer of brazing material filling the space and bonding the sleeve to the outer casing. The distal end of the sleeve is tapered or flared outwardly to produce an annular solder well when a tube end is inserted into the nipple.

Abstract: An oil separator device for use in a crankcase ventilation system of an internal combustion engine. The device comprises a cannister having an internal baffle member and partition means defining therewith an oil laden fume inlet chamber, an oil separating chamber and a fume outlet chamber. Oil laden fumes enter the fume inlet chamber where they are directed by the baffle member to a first 180.degree. volute section of the oil separating chamber and then to a second 180.degree. volute section having a smaller radius of curvature than the first section to thereby produce a vortex region adjacent to the center of the second volute section. Gaseous fluid with oil removed flows upwardly out of the oil separating chamber into the fume outlet chamber through a flue aperture in the partition at a location above the vortex region while separated oil is returned to the engine lubrication system through a drain aperture in the bottom of the cannister.

Abstract: A fabricated pressure vessel having a heat fusible safety plug. The vessel is made of two or more shell member metalurgically joined together such as by furnace brazing in a protective atmosphere. One of the shell members has a conically shaped well which converges in an inwardly direction and terminates with a small aperture. A lead or other low melting point metal pellet is placed in the well and fused to the well surface during furnace brazing at a temperature greater than twice the melting point temperature of the fusible plug metal.

Abstract: An oil separator device for use in an automotive crankcase ventilating system. The separator comprises a cannister shell which is made of two shell members and contains upper and lower partitions that define top, bottom and intermediate chambers. When oil laden gaseous fluid is introduced to the intermediate chamber it is directed by a vane member to flow in an orbital path around the intermediate chamber and create a vortex region in the central portion of the chamber. Gaseous liquid with oil removed flows out of the intermediate chamber into the upper chamber via a perforated chimney located in the vortex region. Oil drains from the intermediate chamber into the bottom of the lower chamber through an elongated aperture in the lower partition outside the vortex region.

Abstract: A thermal release plug for a pressure vessel having a plug well formed in the wall of the vessel. The well contains a circular metal plug member and a low temperature fusible sealant. The well is generally frusto-conical in shape with standoff means to contact the plug at at least three points and thus provide narrow circumferentially disposed arcuate gaps between the plug and the well wall between points of contact. The sealant is fused to the well surface in a furnace under copper brazing conditions.

Abstract: A suction accumulator for use in a refrigerant compressing - evaporating system to accumulate in a reservoir the liquid phase of an incoming refrigerant fluid flowing into the accumulator and to control the return of the liquid to the gaseous refrigerant stream flowing out of the accumulator. A weir member located between an inlet and outlet of the accumulator vessel is utilized in conjunction with the vessel wall to form an outlet passageway or flume on one side of the weir end and a reservoir on the other side of the weir.

Abstract: A suction accumulator for use in a refrigerant compressing - evaporating system to accumulate in a reservoir the liquid phase of an incoming refrigerant fluid flowing into the accumulator and to control the return of the liquid to the gaseous refrigerant stream flowing out of the accumulator. A weir member located between an inlet and outlet of the accumulator vessel is utilized in conjunction with the vessel wall to form an outlet passageway or flume on one side of the weir end and a reservoir on the other side of the weir.

Abstract: A suction accumulator for use in a refrigerant compressing-evaporating system to accumulate in a reservoir the liquid phase of an incoming refrigerant fluid flowing into the accumulator and to control the return of the liquid to the gaseous refrigerant stream flowing out of the accumulator. A weir member located between an inlet and outlet of the accumulator vessel is utilized in conjunction with the vessel wall to form an outlet passageway or flume on one side of the weir end and a reservoir on the other side of the weir.