Abstract: The present disclosure relates to and envisages a compressed air generation system. The compressed air generation system includes a multistage reciprocating compressor for providing compressed air at a high pressure. A combi-cooler assembly includes a pair of intercoolers and a radiator assembly is configured to dissipate heat recovered by the cooling fluid from first reciprocating compression stage, second reciprocating compression stage, third reciprocating compression stage and crankcase assembly of the radiator circuit. The system is a stand-alone unit.

Abstract: The present invention relates to an internal combustion engine arrangement for a vehicle, said internal combustion engine arrangement comprising a combustion cylinder housing a reciprocating combustion piston, and an expansion cylinder housing a reciprocating expansion piston, said expansion cylinder being arranged in downstream fluid communication with the combustion cylinder for receiving combustion gases exhausted from the combustion cylinder, wherein the internal combustion engine arrangement further comprises a pressure tank arranged in fluid communication with the expansion cylinder, wherein the internal combustion engine arrangement is further arranged to be operated in a first operating mode in which compressed gas generated in the expansion cylinder is delivered to the pressure tank, and a second operating mode in which compressed gas contained in the pressure tank is delivered from the pressure tank to the expansion cylinder.

Abstract: A control element having a beam member divided into an actuation section and a valve section positioned on opposing sides of a pivot member, in which active control of the actuation section causes buckling of the valve section to bring the valve section from a closed state to an open state or causes relaxing of the valve section to bring the valve section from an open state to a closed state.

Abstract: A cylinder head for a marine engine has an axially elongated camshaft, cam lobes that are axially spaced apart from each other along the camshaft, and valves that control one of a flow of intake air for combustion in the marine engine or a flow of exhaust gas from the marine engine. The cam lobes actuate the valves upon rotation of the camshaft. Each cam lobe comprises first and second cam lobe sections that are axially spaced apart from each other along the camshaft.

Abstract: A system may include first and second compressors and first, second and third heat exchangers. The first heat exchanger may receive working fluid discharged from the first and second compressors. The second heat exchanger may be disposed downstream of the first heat exchanger and may provide working fluid to the first compressor. The third heat exchanger may be disposed between the first and second heat exchangers and may include an inlet and first and second outlets. The first outlet may provide working fluid to the second heat exchanger. The second outlet may provide working fluid to the second compressor.

Abstract: A hydraulic cylinder assembly for a fluid pump including a cylinder, a bearing attached to an approximate first end of the cylinder, a rod slideably mounted within the bearing, and a piston located about an end of the rod in the cylinder opposite the bearing. A central axis of the rod is offset from, and parallel to, a centerline of the cylinder to impede a rotation of the piston about the rod. The hydraulic cylinder assembly further including a hydraulic pump fluidly connected to the cylinder, the pump configured to provide a hydraulic pressure to the cylinder during an up-stroke of the piston and rod and the pump further configured to generate electricity on the down-stroke of the piston and rod.

Abstract: Provided is a system for transporting an oil sand slurry, comprising a pump, upstream and downstream lines, a shaft connectable to the pump, a driving mechanism driving the pump and a regulator for regulating the torque applied to the shaft between positive and negative torque modes, to pump the slurry at higher or lower flow rates. Also provided is a method comprising pumping the slurry through a pipeline using a pump driven by a motorised shaft and adjusting the flow rate of the slurry by varying the torque applied to the motorised shaft between positive and negative torque modes. The oil sand slurry transportation system and method enable positive head (regular pump action) for normal and high flow rates and negative head (pump brake action) for low flow rates, which reduces system energy loss, pipeline wear, vapor breakout and sanding off.

Abstract: A hydraulic cylinder assembly for a fluid pump including a cylinder, a bearing attached to an approximate first end of the cylinder, a rod slideably mounted within the bearing, and a piston located about an end of the rod in the cylinder opposite the bearing. A central axis of the rod is offset from, and parallel to, a centerline of the cylinder to impede a rotation of the piston about the rod. The hydraulic cylinder assembly further including a hydraulic pump fluidly connected to the cylinder, the pump configured to provide a hydraulic pressure to the cylinder during an up-stroke of the piston and rod and the pump further configured to generate electricity on the down-stroke of the piston and rod.

Abstract: A system for directing compressed air from an internal combustion engine that uses a piston cylinder of the internal combustion engine. The piston cylinder compresses the air and sends the air out of the piston cylinder through a port to a storage tank. A valve is located between the piston cylinder and the storage tank to control the flow from the piston cylinder to the storage tank. The stored air may be directed to and used in different components/systems within a vehicle, including the secondary air system.

Abstract: A hydraulic reservoir includes a container having an internal volume, an internal wall dividing the internal volume of the container into a first section and a second section for separately containing the hydraulic fluid, and two one-way valves. The first one-way valve allows the hydraulic fluid to be drawn out of the first section of the hydraulic reservoir and substantially prevents a flow of the hydraulic fluid back into the first section. The second one-way valve allows the hydraulic fluid to be returned to the second section of the hydraulic reservoir and substantially prevents a flow of the hydraulic fluid out of the second section. A cooling/filtering loop may connect the second section and the first section such that the used fluid in the second section may be processed and returned to the first section in a substantially unused condition.

Abstract: A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Abstract: A hydraulic regenerative braking system and method for a vehicle include a variable displacement hydraulic machine operable as a pump or a motor (22). The hydraulic machine facilitates connections between some of its piston cylinders (50, 52) and a low pressure source (32), and some other of its piston cylinders (50, 52) and a high pressure source (28). The cylinders are alternately connected to the high and low pressure sources such that a pressure transition occurs during each piston stroke. By controlling where in a piston stroke the transitions occur, the power of the hydraulic machine can be modulated. The hydraulic machine is configured to effect the pressure transitions in only a portion of the cylinders at one time. This can be accomplished by asymmetrically configuring cam lobes (86, 88, 90) and fluid ports (74, 76, 78, 80, 82, 84). Staggering the pressure transitions helps to inhibit flow disturbances in the machine when it is operating at less than full displacement.

Abstract: A hybrid hydraulic-electric pumping unit (12) with downstroke energy recovery is disclosed which is operated in a conventional flow mode to supply hydraulic fluid to a hydraulic ram (26), and then is operated in a reverse flow mode to receive the hydraulic fluid from the hydraulic ram (26) and turn an electric motor (16) to generate electric power. A single hydraulic hose (48) connects the pump (18) to the hydraulic ram (26), and is used for both passing the hydraulic fluid from the pump (18) to the hydraulic ram (26) and from the ram (26) to the pump (18). The potential energy of the weight of sucker rods (10) lifted in operating the pumping unit (12) is recovered by operating the pump (18) and motor (16) with return of the hydraulic fluid from the hydraulic ram (26) through the pump (18), which turns the motor (16) to generate electric power.

Abstract: A fan system is electrically connected with a driving source generator and includes a first fan, a second fan and an energy storage element. The second fan is rotated by the first fan for generating an electric energy. The energy storage element is electrically connected with the second fan for storing the electric energy and keep supplying power when the driving source generator is out of order or the fan is rotating in lower rotation speed.

Abstract: In accordance with various embodiments of the present invention, a system and method are provided for converting a conventional automobile engine into a gas compressor. In various embodiments, the system and method may provide an economical and efficient gas compressor by modification of a balance-opposed internal-combustion engine to provide a balance-opposed gas compressor. More specifically, in some embodiments, the modification may include a uniquely designed cylinder head adapted to convert an automobile engine into a gas compressor for the recovery, gathering, transfer, or staged compression of natural gas. In one embodiment, a four-cylinder balance-opposed engine is utilized.

Abstract: This invention is a reciprocating piston to piston device that can function 1) to increase or decrease pressure in a hydraulic or pneumatic system with minimal energy loss or 2) as a hydraulic or pneumatic pump or motor. The input and output fluids may be the same or different. The energy transferred or pumped depends on the size of the input piston, the pressure of the input fluid, and rate of reciprocation.

Abstract: The present invention relates to a reciprocating compressor. The reciprocating compressor includes a latching unit by which a piston is reciprocated by two times a total eccentric amount obtained by adding an eccentric amount of an eccentric portion to an eccentric amount of an eccentric sleeve in a power mode, while the piston is reciprocated by two times the eccentric amount of the eccentric portion in a saving mode, accordingly the piston can have an upper dead point same in the power mode and the saving mode, thereby reducing a dead volume between the piston and a discharge valve and increasing a variable ratio of a cooling capacity of the compressor in the saving mode.

Abstract: Embodiments of the invention provide a method of detecting a fault condition in a motor of a pump. The method includes sensing a first current value and a speed of the motor, attempting a recovery operation if the first current value is greater than a current threshold and if the speed of the motor is less than a motor speed low threshold, and sensing a second current value during the recovery operation and shutting down a drive to the motor if the second current value is also greater than the current threshold. The method also includes performing the recovery operation for a time period if the second current value is less than the current threshold and attempting to operate the motor in a normal mode after the time period has elapsed.

Abstract: A motor assembly including a body that includes a plurality of cylinders and a plurality of air channels and a conical shaped piston slidably coupled within each of said plurality of cylinders. The motor assembly also includes a rotatable timing shaft positioned concentric to and at least partially housed within the body and in flow communication with an air source and the plurality of air channels and a cam plate coupled to the timing shaft and configured to engage the pistons and generate torque.

Abstract: The invention relates to support element (4) comprising a main body (6) having a front wall (25) and a peripheral wall (32) projecting away from the front wall. The front wall and the peripheral wall define a housing compartment (33) designed to receive a fluid distribution circuitry cooperating with a treatment unit for defining an integrated blood treatment module.

Abstract: The idea that I am seeking to patent is the process of manufacturing and storing pressurized air to be injected into the combustion chamber of an internal combustion engine for ignition of the fuel. Unlike a standard engine, that continuously compresses air during every engine cycle, this engine will only compress the air that it needs for combustion or other functions. This compressive optimization saves the energy that would have been used to compress air continuously, thus significantly improving fuel economy. This requires the use of a storage facility. When the storage facility is pressurized to a predetermined amount this engine will no longer compress air. As the air is used and the storage facility pressure decreases to a predetermined amount, the compression cylinders valves may be aligned to raise the air pressure in the storage facility back up to the predetermined amount.

Abstract: A fluid machine is served as an expansion device and a compression device. The fluid machine compresses gas in an operation chamber upon functioning as the compression device. The fluid machine expands the gas in the operation chamber upon functioning as the expansion device. The fluid machine includes a movable discharge valve served as a differential pressure regulating valve that discharges the gas from the operation chamber when the fluid machine functions as the compression device. The discharge valve is moved to a non-operation position where the discharge valve fails to function as the differential pressure regulating valve when the fluid machine functions as the expansion device.

Abstract: An automatable measuring, cleaning and calibrating device for pH-electrodes or electrodes for measuring redox potentials, specifically in process engineering, having an electrode armature which keeps the measuring electrode in an operating position or in a maintenance position, whereby the electrode is retained in the maintenance position in a rinsing chamber in which a cleaning and calibration procedure can be performed. The device has a pump device to supply cleaning fluid and calibration solutions to the rinsing chamber over a delivery line connecting the pump device and the rinsing chamber. In order to configure the device more compactly, the pump device includes several feeds on its intake side, and a device is furnished to selectively activate a particular feed, and the media (cleaning fluid, calibration solution, etc.) brought selectively over the particular feeds to the pump device reach the rinsing chamber over the common delivery line.

Abstract: An air compressor includes a fuel tank at least partially supported by the air compressor guard, allowing for a larger fuel tank and eliminating the need for a separate fuel tank support. The air compressor includes a gasoline engine connected to an air pump via a belt; the guard covers the belt. A frame may also partially support the fuel tank. The air compressor may also include a manifold assembly, where the manifolds are connected via a unique mechanism. Two manifolds, each having a plate extending therefrom, surround a regulator, and the manifold plates are connected using a set of bolts. The regulator is held to the manifolds by being clamped between the plates.

Abstract: A monoblock gas compressor for use in compressing gas having a supply pressure greater than the atmospheric pressure is provided. The compressor includes a compressor head mounted to a cylinder block such that a plurality of valve receiving bores formed in the cylinder head are aligned with a bank of cylinders of the cylinder block. A compressor valve is disposed in the valve receiving bores and secured therein with a valve retainer. The valve retainer defines a gas inflow path to the compressor valve and a gas discharge path away from the compressor valve. The compressor head has a plurality of gas inlets extending from a side of the compressor head and intersecting a corresponding one of the gas inflow paths, thereby enabling the compressor head to safely receive supply gas at a pressure substantially greater than atmospheric pressure.

Abstract: Monoblock engine/air compressor combinations, particularly those providing high pressure gas, experience problems in lubricating the piston pins connecting the compressor piston assemblies to the engine connecting rods. To alleviate this problem, additional weight is added to the compressor piston assemblies to force a load reversal at a determinable point in the piston cycle just after top dead center, thereby facilitating lubrication of the piston pins. An equation is disclosed for calculating the weight of the compressor piston as a function of the compressor gas pressure, geometry of the rotating components and engine speed. In another aspect of the invention, weight is added to the engine flywheel to balance an unbalanced compressor piston after the additional weight has been added.

Abstract: An air brake system for a vehicle including a valve disposed between a fuel tank and a fuel pump and a cylinder of an engine for switching fuel flow from the fuel pump to either the fuel tank or the cylinder, another valve coupled between the cylinder and the air tank for supplying pressurized air from the cylinder to the air tank, the other valve being closed when fuel flows into the cylinder and opened in order to introduce the pressurized air to the air tank.

Abstract: A rotating fluid machine for reversible operation from turbine to pump and from pump to turbine having a simple structure which allows for easy manipulation when reversing operation, and having a low change in efficiency when the machine operates in reverse. The fluid machine includes a bladed rotor containing a rotor spindle, a rotor disk, at least one radial groove, a carrying pin integral to the rotor disk, and at least one rotor blade. The blade, which controls the fluid flow, possesses two identical tongues that extend symmetrically with respect to the axis of the carrying pin and protrude with respect to the rotor disk. The machine possesses an external duct for input of the fluid to the fluid duct. The blade of the carrying pin then rotates in accordance with the toroidal structure of the bladed rotor, allowing the fluid to pass through three passages and to exit by way of a second external duct.

Abstract: An integral gas compressor and internal combustion engine. The compressor is built by converting a portion of an internal combustion engine to a compressor by removing the original engine head and valve train and replacing these with a compressor head assembly. The compressor head assembly includes compressor valves and valve chairs for holding the compressor valves in place. An inlet manifold encloses all of the valve chairs and places all of the inlet flow paths through the valve chairs in communication with a gas source. The head defines a discharge passageway therethrough which is in communication with a discharge opening. A venting system is provided to vent any gas that might build up in the compressor due to leakage past the piston rings and to transfer this vented gas to a fuel inlet of the engine, as desired. An oil viscosity sensing system is provided for sensing the oil viscosity in the crankcase and shutting down the engine when the viscosity drops below a predetermined level.

Abstract: A rotary fluid energy converter which can be used either as a hydraulic pump or as a motor, can recover energy with high efficiency. The converter has a spring for biasing a pintle, which supports a torque ring, in one direction, and a hydraulic actuator for moving the pintle in the opposite direction against the action of the spring. A high pressure fluid used in the converter is introduced into the actuator via a pressure-compensating valve to maintain the pressure of this fluid at the pressure set for the valve at all times.

Abstract: A novel air compressor utilizing a simple modification of an opposing 4 cylinder air cooled Volkswagen internal combustion engine.

Abstract: A hydraulic pressure intensifier for boosting normal system pressure in a hydraulic system to a higher level in order to increase the force provided by a pressure-operated actuator. The hydraulic pressure intensifier has a motor-pump unit with a rotatable cylinder block with cylinders defining piston chambers and each having a movable piston therein. A wobbler controls the stroke of the pistons and the motor-pump unit functions as both a pump and a motor by means of porting to said cylinders including a supply pressure port, an intensified pressure port and a return pressure port. The motor-pump unit has normal maximum and minimum speed limits and when operating at different flow rates the speed thereof varies accordingly. In order to maintain the speed of the motor-pump unit within normal limits, the wobbler is adjustable to vary the stroke of the pistons and thereby vary the speed of rotation of the cylinder block for the same rate of fluid flow.

Abstract: A gas compressor drivably connected to an engine operates to supply compressed gas to a tank. The compressor has a housing including a commercial air cooled internal combustion engine block and cooling air system having a single cylinder chamber accommodating a reciprocating piston. The piston moves gas through a head and valve assembly connected to an air-to-air after cooler operable to cool and carry cooled compressed gas to a tank. The head holds the valve assembly on the cylinder. The valve assembly has a first valving ring allowing one-way flow of gas into the cylinder chamber and a second valving ring allowing one-way gas flow out of the cylinder chamber. A heat exchange unit is cooled with air moved by the commercial engine air cooling system of the compressor. The driving engine is of the same make and general type as used for the components of the compressor.

Abstract: In an internal combustion engine a rotary gas motor, driven by the intake gas of the engine, drives pump providing secondary air to the engine exhaust at low engine load, and at high load a clutch connects the pump and the motor to the engine shaft, the output of the pump and the motor being delivered to the engine intake.

Abstract: A gas compressor drivably connected to an engine operates to supply compressed gas to a tank. The compressor has a housing including a commercial air cooled internal combustion engine block and cooling air system having a single cylinder chamber accommodating a reciprocating piston. The piston moves gas through a head and valve assembly connected to an air-to-air after cooler operable to cool and carry cooled compressed gas to a tank. The head holds the valve assembly on the cylinder. The valve assembly has a first valving ring allowing one-way flow of gas into the cylinder chamber and a second valving ring allowing one-way gas flow out of the cylinder chamber. A heat exchange unit is cooled with air moved by the commercial engine air cooling system of the compressor. The driving engine is of the same make and general type as used for the components of the compressor.

Abstract: A compressor of the piston-type enclosed in a sealed housing. The specific cylinder head of the compressor is completed by an assembly of mass-produced internal combustion engine parts and the compressor is driven through the wall of the housing from an external motor.

Abstract: The conversion of a multi-cylinder liquid cooled internal combustion engine into a powered air compressor by placing inserts into parts of the cylinder head above certain of the cylinders after removal of the valve gear therefrom. The insert seals the coolant jacket in the cylinder head and provides surfaces for receiving a proprietary air compressor valve. The insert may be arranged to connect with ports in the cylinder head in which case the engine manifolding must be modified to separate the compressor air flows from the engine gases, although where the engine receives air as an inlet gas (e.g. a diesel engine) the inlet manifold can be used to provide air to the converted cylinders as well. The cylinders selected for conversion should be chosen having regard to the balance and smoothness of running of the remaining cylinders used to drive them.

Abstract: A closed loop refrigeration system such as an air source heat pump includes a hermetic screw compressor and a helical screw rotary expander connected to an electric induction drive motor. The closed loop refrigeration circuit permits an air source evaporator to constitute a heat source for supplying vaporized refrigerant to the compressor and expander, while both are mechanically coupled to the electric induction drive motor and with both driven as compression units. The air source evaporator feeds to slide valve controlled inlet ports of both the compressor and expander. Compressed vapor from both units passes to condenser coil(s) such as heating condensers to increase the system capacity under this mode.

Abstract: A centrifugal boost pump, a primary centrifugal pump and a dynamic machine are driven through a common drive shaft. At low speeds, such as during pump start-up, the elements are in the aforementioned fluid serial relationship such that the dynamic machine, functioning as a pump, provides the primary fluid pressurization. Once a predetermined primary pump discharge pressure is attained, a clutch disengages the centrifugal boost pump and dynamic machine from the primary centrifugal pump, and the discharge of the dynamic machine is routed to a low pressure source. Thereafter, primary fluid pressurization is accomplished by the primary centrifugal pump which also pumps fluid through the dynamic machine, now functioning as a motor and driving the centrifugal boost pump.

Abstract: A vehicle is provided with an engine which is adapted to serve as an air compressor. Air supply apparatus is provided for interrupting the supply of fuel to the engine and for supplying air to the engine. Compressed air from the engine is delivered to an air tank.

Abstract: A combination engine and air compressor apparatus in which an engine action and an air compression action are changed over to each other by changing valve timing of inlet and exhaust valves.