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| Number | Title | Issue Date |
| 8171728 | High-efficiency liquid heat exchange in compressed-gas energy storage systems In various embodiments, efficiency of energy storage and recovery systems employing compressed air and liquid heat exchange is improved via control of the system operation and/or the properties of the heat-exchange liquid. ... | 05/08/2012 |
| 8146354 | Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange 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... | 04/03/2012 |
| 8096117 | Compressor and/or expander device Systems and methods for operating a hydraulically actuated device/system are described herein. For example, systems and methods for the compression and/or expansion of gas can include at least one pressure vessel defining an interior region for retaining at least on... | 01/17/2012 |
| 8037677 | Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange 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... | 10/18/2011 |
| 7231887 | Milking installation A milking installation comprises a compressed air system with a compressed air line, a pneumatically controllable cylinder and a compressed air pump for supplying compressed air for the cylinder. The compressed air system comprises a dew point sensor for measuring t... | 06/19/2007 |
| 7201095 | Vehicle system to recapture kinetic energy A fluid drive system that can be used to drive a vehicle and has energy regeneration and storage capabilities. The fluid drive system includes an electrical energy supply source mounted on the vehicle, at least one electrical motor electrically connected to the elec... | 04/10/2007 |
| 6966394 | Turbine generator regenerative braking system A turbine generator regenerative braking system is for an automotive or other vehicle having ground engaging wheels and an electrical energy storage device. The braking system comprises an hydraulic fluid turbine generator having an electrical power output connected... | 11/22/2005 |
| 6793029 | Automobile inertia kinetic energy regeneration system An automobile inertial kinetic energy regeneration system which saves energy and enhances safety includes a driving element installed on the automobile drive shaft. The driving element clutches at a clutch that drives a power generator. With the power generator, the... | 09/21/2004 |
| 5493862 | Continuously variable hydrostatic transmission A continuously variable hydrostatic transmission includes an input shaft connected to drive a hydraulic pump unit, a grounded hydraulic motor unit, and an output shaft. A wedge-shaped swashplate is pivotally mounted to the output shaft in driving connecti... | 02/27/1996 |
| 5375417 | Method of and means for driving a pneumatic engine A pneumatic motor having a plurality of cylinders, with each cylinder having an expansion chamber (15), defined in part by a piston plate (2); and a diversion chamber (16) which is divided into two chambers by a slide plate (11), with the diversion chambe... | 12/27/1994 |
| 5165232 | Dual charge engine start accumulator There is provided by the present invention an accumulator system for turb engine start-ups that has comparable weight and bulk to a conventional auxiliary power unit system but which has instantaneous second start capability.... | 11/24/1992 |
| 5113655 | Apparatus and method for removing liquid condensate from a compressed-air system 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 sys... | 05/19/1992 |
| 4760697 | Mechanical power regeneration system A mechanical power regeneration system for a movable object comprising a sole variable displacement hydraulic pump being driven by the movable object, a first check valve connected between the output side of the pump and a first hydraulic line of a high p... | 08/02/1988 |
| 4598628 | Rotary hydraulic engine having oppositely disposed pistons in a scotch yoke assembly A rotary hydraulic engine is disclosed having a stationary crankshaft with an eccentric crank portion disposed thereon. A housing is rotatable about the crankshaft. At least two pairs of cylinders are connected to the housing and extend quadrilaterally th... | 07/08/1986 |
| 4361204 | Hot gas vehicular power system with regeneration A motor vehicle is operated with a hot gas power system which includes a compressor which compresses air in normal driving when being driven by the motor and upon slowing or running down hill when being driven by vehicle momentum, a storage tank which hol... | 11/30/1982 |
| 4147204 | Compressed-air storage installation A compressed-air storage installation comprising a heat accumulator for storing heat contained in compressed air and the air is passed into subterranean caverns. The heat accumulator has partitions therein which are provided between a storage medium. The ... | 04/03/1979 |
| 4095423 | Apparatus for harnessing tidal power An apparatus for harnessing and extracting a portion of the power generated by the rise and fall of ocean tides. A portion of a waterway is dammed and the difference in water levels across the dam provides a pressure differential which, through appropriat... | 06/20/1978 |
