Abstract: A fuel-air mixture regulator for multiple cylinder four-cycle internal combustion engines is positioned between the carburetor and the intake manifold whereby the fuel and air mixture flowing from the carburetor passes through the fuel-air mixture regulator and undergoes an increase in velocity and turbulence enroute to the cylinders for better combustion. The mixture regulator includes a housing having a plurality ports. A thin, resilient, flexible reed for each port is adapted to seat thereover when the engine is not operating and moves away from the port to variably open same for flow of fuel-air mixture therethrough in response to pressure differentials on the reeds during engine operation. The size of the port opening is reduced at lower engine speeds and assures optimum fuel-air mixing and high velocity air flow even at such lower speed.

Abstract: A feather valve is presented having shock absorbing strips in the guard section to absorb impact loads and dampen vibration of the feather strips.

Abstract: A one-piece integral construction check valve molded of resinous plastic material is disclosed. The valve has a body and a cover including first and second cover portions. The first cover portion is hingedly connected to the body and the second cover portion in turn connected to the first cover portion. The cover portions are spaced from each other by a molded recess above a hinge connection which through plastic memory acts to downwardly bias the second cover portion into sealing engagement with the upper surface of the body portion so as to normally seal a fluid transmitting opening disposed therethrough into a closed position. Differential pressure within the passageway in which the valve is adapted to be mounted serves to hingedly pivot the second cover portion upwardly about the first portion to uncover the opening and therefore open the valve.

Abstract: A pressure valve arranged in a rotary piston compressor which valve is mounted in a passage or bore of the housing casing of the compressor. The last mentioned passage is axis parallel to the rotary piston compressor axis. The valve has a cylindrical cross section and can be inserted into the passage or bore parallel to the compressor axis behind an outlet opening in the track of the housing casing through a side wall of the compressor. The valve seat is formed by a longitudinally slotted tubular part which exerts a radially outwardly directed resilient force. The slotted tubular part comprises segmental valve opening slots extending parallel to the side walls of the compressor. Over the slots are located valve lugs or tongues which are cut from a thin-walled tube arranged with a precise fit in the tubular part while the roots of the valve lugs or tongues are connected to the thin-walled tube. An additional tube is with precise fit inserted into the thin-walled tube.

Abstract: A vent valve of an air pump for charging air into a fish bowl which comprises a separator wall having an insertion vent hole, a valve body made of a silicone rubber and consisting of a disc-shaped tongue section having a semi-circular portion of a small diameter for closing said insertion vent hole and an annular disc-shaped fixed section of a large diameter connected to the base portion of said tongue section.

Abstract: This application discloses a reed valve which comprises a means for keeping the reed sealingly seated on the valve seat.

Abstract: A reed valve device having two reeds capable of selectively closing and opening the corresponding openings formed in the device is snugly fitted in a casing through an elastomeric sealing member without using any other connecting means. The casing communicates with an exhaust conduit system of an internal combustion engine so that the reed valve device functions to intermittently admit air into the exhaust conduit system by the pulsations of the exhaust gas under pressure passing through the exhaust conduit system.

Abstract: The improvement in a reed valve for use between crankcase chambers of a two-stroke engine, comprising a flat, ring-shaped steel insert having a rubber coating on one side thereof and including a sealing lip on the I.D. thereof. One insert is secured on each side of a reed block between the block and the reeds with the rubber facing the reeds to cushion the contact between the reeds and the block, and the sealing lip provides a positive-contact seal against the crankshaft.

Abstract: An improvement in valves for suction or exhaust passages of an internal combustion engine, wherein the projection of the plane of the fixing seat of the valve plate and the plane of the valve seat are not parallel. The fixing seat can be tapered. The valve seat can either have a straight angle taper or a curved face. The angle of difference between the two planes is from 30' to 10.degree., preferably from 1.degree. to 3.degree..

Abstract: A straightway valve comprising a body with a through hole accommodating a coaxially mounted sleeve. The sleeve is secured to the body at the side where a working fluid is admitted into the sleeve. The sleeve is arranged so that there is a passage between its external surface and the internal surface of the body. The side surface of the sleeve is provided with ports for communicating the sleeve with the passage for the working fluid.Each port is closed by a flexible plate cantilevered to the external surface of the sleeve. The flexible plate has a variable width decreasing towards the point of its fastening to the sleeve so that the ratio of the port-closing portion of the plate to the width of its remaining flexible portion is 8:1.1.

Abstract: A cylindrical valve body is secured within the body of the heater and includes a venturi inlet to reduce flow restrictions through the valve. A flexible flap valve spans the inner bore of the body at approximately 45.degree. so that it only has to be moved through 45.degree. to be fully opened or fully closed, and secured so that gravity aids in the seating of the flap valve in the closed position. A strip type retainer engages grooves in the side walls of a slot at the top of the body and engages the upper part of the flap valve and holds it in position when the valve assembly is incorporated in the heater and a projecting lug from the valve body engages an aperture in the heater body to position the valve assembly correctly relative to the heater assembly.

Abstract: The flapper valve is to be utilized in a compressor of the type having a valve chamber adjacent a discharge or outlet port. The valve comprises a flexible valve member in the valve chamber which has a port closure at the front end thereof to seal the discharge port of the compressor. A backer plate is similarly received in the valve chamber and has one end in engagement with the rear end of the valve member to normally bias the port closure to a position wherein the discharge port of the compressor is closed. The valve member is provided with forwardly extending arms which cooperate with upturned ears on the backer plate to prevent longitudinal and lateral movement of the valve member. Accordingly, the valve member and backer plate need not be connected together prior to placement into the valve chamber. Alternatively, if the member and plate are connected together, their relative positions will be maintained even if the connection breaks.

Abstract: An induction and exhaust system for a rotary engine is disclosed which has a wing-type reed valve assembly disposed in the intake port of said system and effective to respond instantaneously to a back-flow differential pressure for closing the intake port; the assembly is capable of cycling at least 120 times/second. The system substantially eliminates various types of dilution and variance of the inducted mixture enabling a high velocity peripherally ported engine to deliver an improved low end engine torque characteristic and improved overall fuel economy for a passenger automotive vehicle.Various types of wing reed valve constructions are illustrated, the preferred mode having 16 reed valves arranged with the trailing edge of the assembly cage aligned with the exit of the intake port; the center line of the intake port is located substantially at theoretical zero pressure difference between the adjacent chambers defined by the rotor and housing.