Abstract: A rotary internal combustion engine comprising an engine frame having a rotor rotatably mounted therein which has a plurality of radially spaced cylinders mounted thereon. The free floating piston is slidably mounted in each of the cylinders with the head of the piston being positioned towards the center of the rotor with a roller mounted in the skirt end thereof which rides against a circular cam. A drive shaft is secured to the rotor and it rotatably extends outwardly from one side of the engine frame. A core means extends into the engine frame opposite of the drive shaft and has air and fuel passageways formed therein which are in communication with a source of air and fuel respectively. The inner end of the core means communicates with a rotary valve which is in communication with air and fuel passageways formed in the rotor which are in communication with the cylinders. Each of the cylinders is provided with a plurality of radially spaced openings formed therein.

Abstract: Exhaust means for internal combustion engines which comprises an exhaust pipe having one end connected with exhaust port of the engine, said exhaust pipe having an enlarged expansion chamber adjacent to the other end thereof, said exhaust pipe being closed at the other end and provided with an exhaust gas outlet port which is located at a position where the maximum value of noise producing pulsating pressure is relatively low, there being a first portion of substantially uniform cross-section connecting the engine to the enlarged expansion chamber.

Abstract: A precision metering and dispensing pump of the peristaltic type is disclosed. The pump includes a housing in which an elongated, compressible fluid extruding tube is disposed. The tube has an outlet that is adapted to be connected to the source of fluid that is to be pumped. Spaced serially along the tube and in opposition thereto are an inlet plunger, an extruder plunger and an outlet plunger all of which constitute valves and which are arranged to be displaced in such a manner as to apply compressive forces to the tube. A linear actuator is mounted on the housing and is coupled to a primary, two-part cam that is arranged to linearly displace the inlet and the outlet plungers at preselected times. Displacement of the primary cam causes the displacement of a secondary cam to the movement of which is responsive the extruder plunger. The primary cam acts on the outlet plunger which, at the beginning of the cycle is extended so as to close the tube.

Abstract: An internal combustion gasoline engine comprises a determined region which is so formed in an exhaust passage from an exhaust valve to a thermal reactor as to pass exhaust gases therethrough in their discharging order, a secondary air passage with a check valve means communicating with the exhaust port near the exhaust valve, and means for maintaining the temperature of exhaust gases over the trigger temperature of the thermal reactor. The exhaust passage has a volume equal to or more than the displacement of the engine and less than four times the displacement volume and has a cross-sectional area less than three times the opening area of the exhaust valve.

Abstract: A wave energy transformer for transformation of wave energy into pressure energy of water in a pipe system. The transformer consists of a submerged space network of chambers at least partially closed by walls pivoted to adjacent walls. The walls are deformable due to the action of the waves. At least two of said deformable walls in each chamber are connected to at least one pumping means for pumping water into said pipe system owing to the deformation of said walls.

Abstract: A fluid delivery system and, more particularly, a system for delivering fuel to an aircraft engine. A positive displacement pump delivers fuel to the engine and is supplied by an ejector boost pump connected to a fuel tank and having a nozzle supplied with fuel delivered by the fuel pump for drawing fuel from the tank and increasing the pressure of the fuel prior to delivery through interstage components to the inlet of the fuel pump. Valve means responsive to the pressure differential across the nozzle of the ejector boost pump operates to maintain a uniform rate of fuel flow through the nozzle. In certain embodiments of the fluid delivery system, the fuel pump is provided with auxiliary inlets for delivery of fuel to pumping chambers out of communication with the main inlet of the pump for improved operation of the fuel pump and avoidance of problems encountered from the presence of vapor in the fuel.

Abstract: The invention comprises a water circulator device for circulating the water in a lake, pond, or reservoir. The device comprises a raft having a wind driven shaft mounted thereon for vertical rotation. A mixing chamber is mounted beneath the raft with the upper edge of the chamber above the surface of the lake, pond, or reservoir. The lower end of the shaft has a propellor mounted thereon within the mixing chamber. A pair of vertical telescoping pipes are mounted beneath the chamber of reduced diameter in relation to the chamber.

Abstract: Improved engine performance and reduced temperatures of combustion and engine components giving lower NO exhaust emission results when a turbocharged Roots blown two-cycle diesel engine is provided with a flow restricting aftercooler between the positive displacement Roots blower and the engine cylinders. A preferred arrangement for a V-type engine mounts the after cooler in the engine cylinder block within the air box space between the cylinders and beneath the cylinder block-mounted Roots blower for a compact arrangement with simple connections to the engine coolant jacket and minimum changes to engine airflow. High velocity airflow in the cooler and scrubbing of the cooled air box lower wall provide good cooling efficiency as well as avoiding plugging of cooler air passages with carbon and other airborne particles.

Abstract: A volumetric pump comprising a flexible conduit and roller means for collapsing the conduit to pump liquid therethrough. The conduit is formed to provide a projecting rib to anchor the conduit to an underlying support device. The conduit is formed by forming a flat elastomeric sheet into tubular form, the opposite side edges of the sheet having flanges which are disposed into abutting relation to form the anchoring rib. Preferably, the sheet has a reinforcement imbedded centrally therein. The support may include jaws for clamping the two flange members into abutting relation and saddle elements to insure the desired pumping action by the rollers as they are advanced along the tubular member.

Abstract: A novel sealing arrangement for mounting a combination pump-motor assembly in sealed relationship to the bottom opening of a dishwasher tub, whereby a fluid-tight seal is insured, notwithstanding thermal expansion and contraction of the tub bottom. The seal is effected between a circumferential downwardly directed bead, of a flexible shroud that covers the assembly, and an upwardly facing grooved lip which defines the opening in the tub bottom whereby the weight of the wash fluid in the tub tends to enhance the sealing action.

Abstract: A variable displacement pump having a tiltable swash plate including a pair of servo mechanisms for controlling discharge of pump fluid includes a zero displacement positioner for automatically returning the pump swash plate to a central, neutral position to discontinue pumping action if pump pressure is lost or if linkage controlling one of the servo mechanisms should break or otherwise fail.

Abstract: The method and apparatus for producing an oil well, by the provision of a pumpjack unit which reciprocates an engine assembly located within the upper extremity of a wellbore. The engine assembly has a power piston which hydraulically drives a lift piston by means of hydraulic fluid being transferred therebetween. The lift piston is directly attached to and reciprocates a string of sucker rod, which in turn reciprocates the downhole production pump.The hydraulic fluid associated with the engine assembly is contained within a closed system, and the relative sizes of the power and lift pistons are of a ratio to cause the lift piston to travel a greater distance respective to the power piston, thereby enabling a relatively short stroke of the polish rod to impart the piston of the subsurface pump with a relatively larger stroke.

Abstract: An internal combustion engine which is provided with an exhaust gas treatment system, such as thermal or catalytic reactors, includes a primary regulating system for admitting fresh air to the exhaust system for the chemical processes taking place in the reactors. This fresh air regulation depends on the engine rpm and on the induction tube pressure. There is also provided a secondary air control system, including a three-way valve and an electronic controller and an oxygen probe, located in the exhaust manifold. The probe supplies the controller with a signal related to the oxygen concentration in the exhaust gas and the controller uses this signal to actuate the three-way valve which admits either induction tube pressure or, alternatively, exhaust system pressure, to a control chamber in the primary regulating system, thereby influencing the quantity of fresh air supplied to the exhaust manifold of the engine.

Abstract: An improved peristaltic pump is described wherein the basic configurations of movable pump rollers, a base member and pump tubing compressed by the pump rollers against the spring loaded movable base member is improved by the addition of at least one actuating member capable of movement toward and away from an actuating position with respect to the base member. When the actuating members move toward their actuating positions, they compress the pump tubing against the base member and prevent fluid flow along the pump tubing. During such movement the actuating members also contact the base member and push it away from the pump rollers toward a non-pumping position so that movement of the pump rollers is no longer effective to cause pumping fluid along the pump tubing. When the actuating members are retracted from their actuating positions they allow the pump tubing to open for fluid flow therealong and allow the base member to return to a pumping position. A multiple channel pump assembly is also described.

Abstract: A pneumatic pump adapted primarily as a left ventricular heart assist device includes a flexible bladder with a rigid housing. A pneumatic driver applies rhythmical pulses between the bladder and the housing to repetitively collapse the bladder and establish a pumping action through the bladder, in conjunction with check valves in the inlet and outlet to the bladder. Between the driver and the pump there is provided a pneumatic pulse limiter which includes a flexible diaphragm isolating the driver from the pump. Pulses from the driver are transmitted to the pump only through the flexible diaphragm and the diaphragm is constrained to move only within established limits. Regardless of the magnitude of the pulse from the driver, the maximum pulse applied to the pump cannot exceed that corresponding to the maximum displacement of the diaphragm.Between successive pulses, the portion of the system between the driver and the flexible diaphragm is depressurized.

Abstract: A turbomolecular vacuum pump has a housing, a vertically oriented hollow pump rotor situated in the housing, and a vertically upwardly oriented stub shaft affixed to the housing and extending into the hollow pump rotor. The pump rotor is supported on the stub shaft by a magnetic axial bearing and at least one magnetic radial bearing, all disposed in the space surrounded by the hollow pump rotor.

Abstract: A rigid waterproof structure built on the ocean floor near a shore is completely enclosed. Guides are provided to direct the waves or swells from the ocean to an inlet opening which is completely covered, by a free-hanging heavy gate which latter is opened when the waves or swells move toward the shore thereby introducing water into the dome-like structure and displacing the air therein, thus compressing it. The air is forced out through check valves and thus compressed is conducted to a storage tank for the compressed air. Air intakes are provided which are closed when the air is compressed in the structure and are opened when the water escapes from the structure.

Abstract: A burner block valve assembly for supplying oil and steam selectively to a main burner or stand-by burner when the main burner is being repaired or replaced includes a valve plug rotatably disposed in the valve body and rotatable between a main burner ignition position, an intermediate joint burner ignition position and a stand-by burner ignition position wherein steam and oil are routed from supply lines to the burners through two levels of passages, the valve plug including a first chordal slot adapted to route oil to the first level from an oil supply line directly to the main burner in the main burner ignition position, jointly to the main burner and the stand-by burner in the joint burner ignition position, and directly to the stand-by burner in the stand-by burner ignition position, the valve plug further including a second chordal slot adapted to route steam to the second level from a steam supply line directly to the main burner in the main burner ignition position, jointly to steam supply to both bur

Abstract: A diaphragm pump having a pump chamber divided into two portions by a diaphragm of elastomeric material which is generally of hemispherical shape and clamped at its periphery in the pump chamber. The portion of the chamber including the interior of the diaphragm communicates with a cylinder in which a piston is reciprocated by rotation of a drive shaft. The pump chamber includes inlet and outlet non-return valves for the fluid to be pumped, is detachable as a unit from a housing containing the piston and cylinder and is positioned below a normally horizontal plane containing the axes of the cylinder and drive shaft.

Abstract: An electric motor driven compressor includes a reciprocating free-stroke armature driving a compressor piston in a cylinder. A cylinder head closes the cylinder to form a compression chamber into which opens an intake passage and an output passage selectively closed by valves. The output passage provides an opening into the compression chamber through the cylinder wall at a selected distance from the cylinder head to provide an energy absorbing chamber filled with gas when the piston closes the opening of the output passage during its compression stroke. The energy absorbing gas cushion in the chamber prevents impacts between the piston and cylinder head under varying operating conditions.