Abstract: A linear actuator having a low profile and a long stroke is provided. The actuator includes a housing integrally connected to a telescoping piston. The piston may be extended by a fluid such as inflation gas provided by an inflation gas generator in fluid communication with the piston. The piston extends rapidly through a one-shot stroke. The extending piston converts energy in the fluid into motion for performing linear work. The linear actuator may be formed from a single piece of parent material through stamping processes including deep draw stamping. Alternatively, other metal forming processes may be used to form the linear actuator.

Abstract: A fluid, for example, air, is subjected to a high pressure while in a high pressure inducing vessel (101). The high pressure is due to a large mass, such as the ocean. The fluid is then cooled and directed into a depressurized vessel (107), such as a pressure hull, which is at a relatively lower pressure. With this change in pressure, the fluid expands. This expansion is used to generate work/energy using a work producing machine (108), for example, a turbine. Energy from the work producing machine is converted to electricity using a generator (111). The fluid is collected from the work producing machine and again subjected to the high pressure and low pressure to generate additional electricity.

Abstract: The invention creates a vehicle pneumatics overpressure regulating circuit 1 of a supply device of a pneumatic consumer 5 in a vehicle with an operating pressure. The overpressure circuit 1 has a compressed air source 3, which furnishes compressed air for the consumer 5; a pressure switch 8, by means of which the compressed air source 3 is turned on and/or off to supply the consumer 5 with compressed air; and a supply line 4, by way of which compressed air can be carried from the compressed air source 3 to the consumer 5. The pressure switch 8 can be subjected to a measured pressure via a pneumatic measurement line 7, which is separate from the supply line, and this measured pressure characterizes a state of the operating pressure of the consumer. As a result, extremely precise regulation of the requisite operating pressure is successfully achieved.

Abstract: A manifold assembly for pneumatically interconnecting a brake booster to an engine and to an electrically-driven vacuum pump. A manifold housing has an engine port pneumatically communicable with the engine, a separate booster port pneumatically communicable with the brake booster, and an orifice pneumatically communicable with the vacuum pump inlet. An engine check valve substantially blocks pneumatic flow from the engine port to the booster port. A vacuum-pump check valve substantially blocks pneumatic flow from the engine port to the vacuum pump outlet.

Abstract: The present invention provides a balloon-shaped structure driving apparatus by which portions of a balloon-shaped structure can be caused to move easily and reliably and weight and cost can be reduced and a discharge/suction selector valve device. A rotating blade of the discharge/suction selector valve device is rotated to a suction operating position to connect an air outlet and an air flowing hole, to exhaust air from actuators toward a pump device, and to contract a bellows portion. At this time, the actuators pull acting portions of arm portions of a balloon robot main body, the balloon robot main body is bent at allowance portions which can be bent, and the arm portions are forcibly moved down.

Abstract: Apparatus for supplying high pressure gas to an engine, to operate the engine, comprising in combination a gas pressurizer having a low gas pressure inlet to receive inlet gas, as for example discharge gas from the engine, and a high gas pressure outlet to deliver supply gas at high pressure to the engine, the pressurizer including a rotary body defining a gas flow channel that extends about an axis in a spiral of decreasing radius, and a drive operatively connected with the body to rotate the body about an axis, at high velocity, thereby to effect gas flow and pressure increase, along the channel, for supply to the engine via an outlet from the pressurizer.

Abstract: Apparatus for supplying high pressure gas to an engine, to operate the engine, including in combination a gas pressurizer having a low gas pressure inlet to receive inlet gas, as for example discharge gas from the engine, and a high gas pressure outlet to deliver supply gas at high pressure to the engine, the pressurizer including a rotary body defining a gas flow channel that extends about an axis in a spiral of decreasing radius, and a drive operatively connected with the body to rotate the body about an axis, at high velocity, to effect gas flow and pressure increase, along the channel, for supply to the engine via an outlet from the pressurizer.

Abstract: An air powered hydraulic lift system including a hydraulic pump operably connected to the ports of a hydraulic lifting cylinder, the hydraulic pump being driven by an air motor, an air pressure pilot operated valve for controlling supply of hydraulic fluid from the hydraulic pump to the ports of the hydraulic cylinder and an air pressure control valve connected to the air motor and to the air pressure pilot operated valve to supply air pressure to the air motor when air is supplied to the air pressure pilot operated valve.

Abstract: A method for reducing pollution in a mono-mode air-air combustion engine having an intake and compression chamber, connected to a constant volume expansion chamber, which is connected in turn to an expansion and exhaust chamber. External air is drawn into the intake chamber and compressed to an increased pressure and temperature. The compressed air is transferred to the constant volume expansion chamber, wherein additional, ambient temperature, compressed air is injected therein. The injected air, when contacting the elevated pressure and temperature of the compressed air causes an expansion of the air within the constant volume expansion chamber. The energy associated with the air expansion is transferred to the expansion and exhaust chamber, wherein the continued compressed air expansion produces a work force that is imparted to a piston. The energy depleted air is then exhausted through an exhaust value.

Abstract: A brake booster provides additional boost capacity without unduly increasing booster size and weight by providing a vacuum pump connected so as to add its additional vacuum capacity to that of the normal vacuum source when activated in response to sensed approaching run-out. The additional vacuum is provided by connecting the vacuum pump in a second conduit between the vacuum source and the booster vacuum chamber in parallel with a first conduit connecting the vacuum source directly with the booster vacuum chamber, with check valve means in the first and second conduits preventing substantial vacuum loss from the vacuum chamber.

Abstract: The invention relates to a pneumatic spring system comprising at least one pneumatic spring which consists of at least the following: a pneumatic spring cap as an upper component; a pneumatic spring piston as a lower component; pneumatic cushioning bellows made of elastomer connecting the two opposite components with the help of fastening elements. The bellows can roll off, when an interior space having elasticity of volume forms at the outer wall of the piston, inside their roll-off zone. The pneumatic spring system also consists of at least one control valve configured in particular as a magnet valve; a compressor having integrated residual pressure maintaining function; and a pilot controlled check valve connected to the pneumatic spring, which is preferably situated in the pneumatic spring cap or piston, and as such is accommodated in a housing, although different mounting variations exist.

Abstract: A brake system for automotive vehicles has a pneumatic brake power booster with two chambers one of the chambers being adapted to be acted upon by a low pressure and the other one by a higher pressure, and at least one of the chambers being adapted to be connected to a pneumatic pump. A device is provided to activate and deactivate the pump in response to the pressure that prevails in the chamber of the brake power booster associated with the pump.

Abstract: A compressed air powered motor vehicle includes an engine having an intake and an exhaust pipe. The engine is configured for operating on compressed air received in the intake and expelling exhaust air through the exhaust pipe. A compressed air storage container is in fluid communication with the intake of the engine. At least one compression mechanism is in fluid communication with the exhaust pipe of the engine and with the compressed air storage container. The at least one compression mechanism is configured for compressing the exhaust air and replenishing the compressed air storage container. Each compression mechanism includes a reciprocable connecting rod having a direction of travel. A rocker arm has a first end, a second end and a pivot point disposed between the first end and the second end. The first end of the rocker arm is attached to the connecting rod. The rocker arm is configured for pivotal oscillation about the pivot point, thereby reciprocating the rod within the compression mechanism.

Abstract: The invented apparatus is designed for use with a tow vehicle and trailer combination. The apparatus includes a controller, and can also include a vacuum sensor and a vacuum pump. The vacuum sensor is communicatively coupled to sense the vacuum supply available to operate a trailer brake system that is interfaced to the tow vehicle's brake system to coordinate braking of the trailer and vehicle. The vacuum sensor generates a vacuum pressure level signal supplied to the controller. The controller periodically determines whether the vacuum pressure level is less than a first predetermined vacuum pressure level. If so, the controller activates the vacuum pump by generating a vacuum pump switch signal. On the other hand, if the vacuum pressure level is greater than the first predetermined level, the controller does not activate the vacuum pump switch signal.

Abstract: In order to obtain a fluid pressure drive circuit which is capable of reusing a compressed gas by cyclic recirculations, a closed circuit is formed by and through a compressor 2, a low pressure tank 13 connected to an intake end 2b of the compressor 2, a high pressure tank 12 connected to a discharge end 2a of the compressor 2, a high pressure conduit 17 serving to supply compressed air from the high pressure tank 12 to a fluid-operated actuator 5, and a low pressure conduit 18 serving to recover gas discharges from the actuator 5 to the low pressure tank 18.

Abstract: A gas-based transmission which has a self-regulating mechanical advantage that is continuously--and, essentially, infinitely variable. A high-pressure reservoir receives either exhaust gas from an engine or air from a compressor that is run by the drive shaft from an engine. A pressure regulator on the output of the high-pressure reservoir controls the engine resistance and decouples the engine from the the drive forces. The pressure can be set at a given level which will approximate the power curve for the engine or can be controlled by a computer so that the engine will produce the power desired by the operator at the lowest engine speed capable of producing such power, i.e., the engine will operate precisely on its power curve. The gas or air passes from the pressure regulator to a variable-pressure reservoir.

Abstract: An apparatus and method for controlling an electrically driven vacuum pump (16) for a motor vehicle provides that below a predetermined level of vacuum (approaching atmospheric pressure) the pump (16) runs at a first speed, and above that level of vacuum the pump (16) runs at a lower speed or is stopped. Pump control is by switching of a single pressure switch (21) between two states, switching from the first state to the second state being accompanied by a time delay to ensure a minimum running period at the first speed.

Abstract: Valve system for a vehicle gas suspension system having a central chamber (41) to which pressurized gas is admitted via valve 50 or from which pressurized gas is exhausted via valve 51. Interposed in gas communication paths between the central chamber and each gas suspension unit (46-49) is a respective on-off valve unit (42-45). The valve system includes a regenerative drier (56) and a cushion valve (70) for protecting a compressor from overload during start-up.

Abstract: In a pneumatic control circuit, five three-port, two-position, directional control valves, three of which have manual controls, and two shuttle valves are arranged for controlling a first pneumatic device and a second pneumatic device in an operating mode wherein the second pneumatic device cannot be readily enabled before the first pneumatic device is enabled. A first control valve having a manual control is arranged to control the first pneumatic device. A second control valve having a pilot valve is arranged to control the second pneumatic device. A pilot control valve having a manual control is arranged to connect the first control valve to the pilot valve of the second control valve via a shuttle valve. A holding control valve has a cam control, which is operated by the second pneumatic device, and has an outlet connected to the pilot valve of the second control valve.

Abstract: An electric power system has an air compressor unit with a reservoir tank, an air powered motor and an electric generator. The air compressor unit has an air compressor that provides compressed air to the reservoir tank. The air compressor is driven by an electric motor. The air powered motor is driven by compressed air from the reservoir tank. The air powered motor provides rotary power to an input shaft of the electric generator, wherein the generator produces electrical power. The system can be mounted onto a mobile platform for ease of transport. Also, storage batteries can be connected to the electric output of the generator. The output of the batteries can be connected to the electric motor of the air compressor unit.

Abstract: Hydraulic air compressor and fuel fired turbine apparatus disposed in a vessel or ship includes a hydraulic compressor having an air intake disposed above the water intake for entraining air in falling water, and the output of the hydraulic compressor is used as a compressed air source for turbine apparatus. The turbine apparatus includes a regenerator for heating the incoming compressed air output from the hydraulic air compressor. The hydraulic air compressor includes, in one embodiment, pump elements for providing a flow of water for when the ship or vessel is not moving and a flow of air to be entrained and compressed.

Abstract: An apparatus and method are disclosed for the simple removal of liquid condensate, in particular of water of condensation, from compressed-air systems alternately subjected in operation to positive pressure and atmospheric pressure. The compressed-air system is first of all connected for a limited period, at intervals or after each subjection to positive pressure, to a vacuum generator in order to promote re-evaporation of the condensate and is evacuated by the latter before atmospheric pressure is passed in or let in again. In certain embodiments, a highly restricted reverse flow through the compressed-air system is permitted. The method is particularly suitable for use in small-volume compressed-air systems which do not have to be permanently subjected to positive pressure, e.g., in pneumatic door-closing aids for motor cars.

Abstract: According to the displacement suppressing mechanism for a travelling crane of the present invention, when a mode selection switch selects an operation mode and a detected value by a boom position detecting means is smaller than a lower limit value of an appropriate travelling range, a change-over valve for replenishment capable of changing over the position of an auxiliary pressure oil source selectively to a communicating position for communication of the auxiliary pressure oil source with a first oil chamber of a boom raising and lowering hydraulic cylinder and a communication cutting-off position is shifted to the communicating position by a control means to supply a predetermined amount of pressure oil to the first oil chamber of the hydraulic cylinder.

Abstract: A vacuum supply system for a brake power assist unit of a motor vehicle with at least one additional vacuum consuming device is achieved by the installation of a valve, which can be switched as a function of existing vacuum level in a pipe leading from the vacuum generating device to the at least one additional consuming device. Switching of the valve causes a throttling of this pipe to be more extensive when the existing vacuum level is above a certain absolute pressure value.

Abstract: A shell having a closed upper end and an open lower end, and a weight in the form of a piston sealingly slidable in the shell. In one form partial vacuum is produced in the shell above the weight and atmospheric pressure consequently raises the weight. In another form, pressurized air lifts the weight, against the action of weight. The weight has driving connection with a load, such as a generator, and upon being permitted to drop, acting by its potential energy, drives the load. The partial vacuum is produced in one form, by heating and cooling units; and in another form, by natural heating and cooling. A plurality of power plants are utilized to drive a single load, so that one weight can be raised, and the power plant re-activated, while others continue to drive the load, thereby maintaining continuity of drive.

Abstract: A housing (50, 52) defines a slide chamber (54) in which a slide member (34) reciprocates between three positions. A coil spring (86) holds the slide member (34) into a center position. In this position, slide member (34) blocks fluid flow through a port (28) and positions an electrical conductor (96) away from electrical contacts (110, 112). A push on the slide member (34) moves the electrical conductor (38) into circuit making contact with the contacts (110, 112). A pull on slide member (34) moves an exhaust passageway (36) in the slide member (34) into communication with the fluid port (28). The switch function activates a compressor which pumps air into an inflatable seat actuator. The valve function exhausts air from the inflatable seat actuator.

Abstract: A vacuum supply system for a brake power assist unit of a motor vehicle and at least one additional vacuum consuming device, is achieved by a parallel arrangement of two pipes leading from a vacuum generating device one to the brake power assist unit and one to the additional consuming device. Both pipes are equipped with flow control devices one of which is blockable by means of a check valve with an increased restoring or closing force for securing a vacuum supply priority for the brake power assist unit.

Abstract: A bidirectional pressure supply system for consumers of pneumatic negative pressure and/or positive pressure has a negative pressure line system and a positive pressure line system, to which the respective pressure types are simultaneously admitted from a pressure generator. Upon the electrically triggerable operation of the generator the consumers are connected, via parallel connected directional valves assigned to the consumers, to the respective pressure line system depending on the pressure type required at that moment, individually or in groups. The system provides an arrangement to apply negative pressure to first consumers and, simultaneously, positive pressure to second consumers.

Abstract: A silencing system is provided for an air-operated pump which also eliminates icing of the pump at higher cycle rates and humidities. The exhaust from the air motor powers an air flow inducer to induce a flow of relatively warm ambient air. The induced flow of ambient air is drawn across cold components of the air motor, and the mixed (ambient and exhaust air) exit stream routed away from the air motor. The relatively warm mixed air exhaust flow also allows noise reduction by conventional acoustical techniques without suffering performance degradation due to icing.

Abstract: Airlift apparatus used in conjunction with a weight lifting machine that utilizes a stack of weighs. It assists the weight lifter when fatigue occurs. Its construction is of plastic, consisting of a cylinder and a piston. The piston is moved by differences in air pressure which is induced by a vacuum pump located at the bottom of the cylinder. A cable and a series of pulleys connect the weight stack to the piston. The system is activated by the lifter at any stage of the lift by a foot or hand operated switch. When not in use the Airlift does not adversely affect the normal operations of the weight lifting machine.

Abstract: Fluid flow control valves are provided having a jet pump or aspirator connected to a plurality of fluid passageways. Fluid flow from one of the passageways through the jet pump creates a partial vacuum enabling fluid flow to be drawn through the other of the fluid passageways connected to the jet pump. Such valves enable hydraulic fluids of a single-acting piston-cylinder unit or the like to be readily exhausted.

Abstract: A compact electric adjusting drive for locking systems, fan flaps or the like in motor vehicles includes a fluidic force transmission system between the electric motor and the adjusting element movable to and fro between two end positions.

Abstract: A vehicle kinetic energy reclaiming system employs the vehicle's engine (10) to compress air when the vehicle decelerates and reuses the stored compressed air to drive an air motor (78) which assists in powering the vehicle when it is underway again. When the vehicle begins to decelerate, an accelerator switch (24) causes a valve (38) in a carburetor (34) bypass pipe to open, allowing ample air to enter and be compressed by the engine, which is driven by the vehicle's kinetic energy through the transmission (42). This helps decelerate the vehicle and saves its brakes. The same switch closes a valve (22) in the exhaust line (18-19), causing the compressed air to be diverted to a storage tank (26). When enough pressure in accumulated in the tank, a pressure release valve (74) in the tanks' output opens and a valve switch (72) closes, allowing air to reach an accelerator-controlled valve (88). This enables a clutch (76), which connects the air motor to the vehicle's transmission, to be operated.

Abstract: A compressed air power plant which includes a piston disposed within a cylinder and connected to a drive shaft. The piston is operated through a power stroke and an exhaust stroke upon each rotation of the drive shaft. The power plant includes compressed air means for supplying compressed air at a high pressure and at a second pressure lower than the high pressure. A distributing means is operatively associated with the compressed air means for selectively communicating the high pressure compressed air to the cylinder at the initial portion of the power stroke of the piston. An intake means is operatively associated with the cylinder and the compressed air means for selectively admitting compressed air at the second lower pressure to the cylinder at a predetermined time in the power stroke after the communication of high pressure air to the cylinder.

Abstract: A device carrying air reservoir means and a compressor is adapted to be mounted on a conventional four cycle internal combustion engine to convert it to operation by air pressure. The device has air pressure reservoirs, valves and conduits for delivering air pressure to the cylinders of an engine in timed sequence. After each power stroke air is exhausted to the inlet of a compressor carried by the device which delivers the compressed exhaust air back to the reservoirs and in doing so adds to the exhaust air energy substantially equal to the useful work output of the engine.

Abstract: This disclosure involves the conversion of a four cycle internal combustion engine to that of an hydraulic or fluid motor, wherein engine heads, camshafts and valves are changed, and the invention can be used to power automobiles, power plants, conveyors, earthmovers, etc.

Abstract: A compressed air propulsion system is provided to be adapted for use with a vehicle, and comprises a transaxle mechanism adapted to be mounted to and driven by the vehicle wheels, and an air compressor coupled to the output shaft of the transaxle mechanism to be driven thereby. The air compressor supplies a flow of compressed air to an air distributor system connected to the vehicle engine. The air distributor system comprises a plurality of solenoids connected to the air lines leading to the engine cylinders, and a respective plurality of microswitches are electrically connected to the solenoids to sequentially operate the solenoids for sequentially supplying compressed air to the engine cylinders. The microswitches are sequentially actuated mechanically by a rotor secured to the distributor shaft, which is coupled to the vehicle crankshaft. An accelerator is also provided for controllably varying the flow rate of compressed air to the air distributor system.

Abstract: A magnet attracts succeeding sites distributed about the periphery of a disk causing the disk to rotate. The resulting centrifugal force pulls radially outwards a plurality of piston-like weights mounted on the disk lowering the pressure within a housing for the weights and in a vacuum tank to which the housing is communicated via a check valve. When the weights are all the way out, they operate a trip which renders the magnet temporarily ineffective. Springs return the weights back toward the center of the disk. The vacuum tank is communicated to an opposed piston engine via timed valves which alternately communicate the engine cylinders to the vacuum, for oscillating the opposed pistons. A crank shaft connected to these pistons converts the reciprocating motion to rotary motion.

Abstract: A control system for controlling the operation of a heating or air conditioning system, especially for the passenger compartment of motor vehicles. The temperature in the compartment is maintained by an electronic controller which receives temperature-related signals from one or more temperature sensors. The electronic controller is connected to an air pump which may be operated as a source of pressure or vacuum and is coupled to a pneumatic actuator which moves a final control element, for example an air flow valve or a cooling water valve. The air pump supplies a continuous and reliable source of pressure or vacuum independently of the engine manifold vacuum. The air control conduit is coupled to a ventilating line which communicates with the atmosphere through a fixed or variable throttle.

Abstract: An altitude compensating control system for a vacuum pump supplying a vehicle accessory vacuum supply system comprising, in a preferred embodiment, a dual diaphragm pressure switch spring biased in a closing direction to actuate the pump and having an ambient pressure exposed diaphragm acting in a switch-opening direction opposed by a controlled vacuum pressure exposed diaphragm of larger area acting in a switch closing direction to provide a controlled vacuum pressure range that declines from a desired operational vacuum pressure range at sea level to a lower satisfactory vacuum level for efficient operation at higher altitudes. Other features and advantages are also disclosed.

Abstract: A Gas Energized Engine System, according to the present invention, is adapted to drive a piston type gas energized engine having a piston and cylinder system that is operatively interconnected with a crankshaft that transmits rotary force to any suitable load. The piston type engine is provided with gas intake and exhaust systems. The gas intake system is interconnected with a gas supply system having a high pressure supply vessel and an operating pressure supply vessel that are interconnected by a pressure regulator. A converter system which is an engine and compressor system that is separate from the gas energized engine, and has a gas inlet that receives the exhaust of the gas exhaust system of the engine and functions to compress the exhaust gas to a high pressure and communicate the high pressure to the high pressure vessel of the gas supply system and to modify the exhaust atmosphere of the gas energized engine.

Abstract: The present invention utilizes a power system based upon the use of compressed air. Each wheel of the vehicle is provided with a motor which is operated by compressed air from a respective storage tank through a system of valves and hydraulic or fluid pressure lines. The rotation of each wheel is also utilized to drive air compressors which may recapture some or all of the air which is exhausted from each motor and additionally to compress and store air brought in from outside of the vehicle during its motion. The present invention can be adapted for two-wheel drive or four-wheel drive.The drive units for each wheel are substantially identical. The rear units are mounted on fixed axles whereas the front units are mounted on an axle having a universal joint therein and each wheel is mounted by means of a ball joint to a suspension frame which in turn is secured to the vehicle frame.

Abstract: The disclosure is of a system for operating a turbine without production of steam by compressing a gas, supplying the gas to the turbine, and returning the reduced pressure gas to the compressing means.

Abstract: A vacuum supply system for automotive vehicles having vacuum powered accessories and driven by an engine with an air intake system in which vacuum is developed that may be inadequate to operate the accessories under some conditions. A vacuum pump, which may be engine driven, is connected between the engine and the accessories to supplement the operating vacuum. Flow limiting orifices in a junction connecting with secondary accessories provide for continued operation of a primary accessory such as a vacuum brake booster in spite of the disconnection of a vacuum hose or other massive air leak in one of the secondary accessory lines.

Abstract: A pneumatic system includes a pneumatic motor, which may take the form of a vibrationless paving breaker utilizing a blow-striking member or hammer that is propelled to and from its force-transmitting or blow-striking position by a compressed gas. A valving arrangement provides for relatively large-ratio expansion of the compressed gas in the space under the hammer between its infeed thereinto and its exhaustion therefrom, in order to significantly utilize heat energy in the compressed gas to assist in energizing the propulsion of the hammer. Such heat energy is usually invested in the compressed gas by and during substantially adiabatic compression thereof at a gas-volume transformer, or compressor, included in the pneumatic system. It may be noted that the process of substantially adiabatic compression in the compressor is to a significant degree reversely duplicated in energizing the propulsion of the hammer.

Abstract: A device for unlocking and locking of doors, particularly of motor vehicle doors, with a pump delivering low pressure and high pressure, the outputs of which are connectable via a two-way valve which is actuatable upon each unlocking and locking operation, respectively, with pneumatic positioning elements which act on the door locking mechanism and with electrical switches for switching the pump respectively on and off via a reversing switch, the electrical switches being actuatable by means of a door key and arranged in the several, lockable doors, the reversing switch being able to be switched-over by means of a delayed-responding actuating means. An additional pneumatic positioning element is provided as the delayed-responding actuating means, which additional positioning element is connected to an output of the two-way valve. The two-way valve and the reversing switch are actuatable by means of the additional positioning element.

Abstract: The present invention relates to a new and unique propulsion system that comprises a source of compressed air housed within a tank and wherein the propulsion system is adapted to selectively deliver the pressurized air from said tank to a turbine motor where the air drives the turbine motor and an output drive shaft associated therewith. In addition, a driven vacuum pump system is communicatively connected to said turbine motor and adapted to evacuate air therefrom and to direct the evacuated air back to the tank to form a hermetically closed pneumatic circulatory air circuit system.

Abstract: A motor is provided of the piston or diaphragm type in which vacuum is constantly applied to one side of a piston or the like and air under pressure is constantly applied to the opposite side to drive the piston through a stroke. The vacuum and pressurized air may be obtained from sources outside the motor. A valve mechanism driven by the motor reverses the application of vacuum and air pressure when the piston reaches each end of its stroke so that power is continuously applied to both sides of the piston during both forward and reverse movement thereof. Different pistons are arranged out of phase with one another to provide a smooth flow of mechanical power. In one version, the motor drives an air pump having a vacuum inlet and an air pressure outlet, and by connecting such inlet and outlet to the valve mechanism, the motor will drive a load as well as itself. In another version, the motor has an internal combustion apparatus incorporated therewith.

Abstract: A compressed air engine having specially designed cylinder heads and piston configurations in order to reduce friction and maximize the application of air from a pressurized air source. The disclosure includes a lubrication system whereby the mechanical parts receive oil via a lubrication arrangement including a conveyor chain continually bathed in oil.

Abstract: A combination automotive power system wherein a compressed-air motor supplements the primary gasoline-fueled internal combustion engine. Employs a common driveshaft and includes an air compressor powered by the primary gasoline engine, and a compressed-air storage tank intermediate of the compressor and the air motor.