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| Number | Title | Issue Date |
| 8182235 | Multi-drive fluid pump A multi-drive pump may include a pump housing, an inlet port, an outlet port, a primary pump gear, a secondary pump gear, a first internal mechanical drive mechanism coupled to the primary pump gear and a second internal mechanical drive mechanism and an internal el... | 05/22/2012 |
| 8070455 | Scotch-yoke mechanism for redundant actuation applications A primary scotch yoke and a secondary scotch yoke are coupled in opposing arrangement and rigidly attached to a linearly reciprocating element. Each scotch yoke includes a rotary actuator with a cam follower and a yoke attached to the reciprocating element. Each yok... | 12/06/2011 |
| 7328579 | Rotary piston heat engine system A rotary piston heat engine system is composed of two units. Each includes two pistons mounted for movement in opposite directions. Each piston is mounted for rotation in a cylinder. The longitudinal axes of the pistons and cylinder are collinear. The pistons are mo... | 02/12/2008 |
| 7322799 | Scalable, modular, high availability fan system In one embodiment, the invention recites a fan motor assembly with integrated redundant availability. The fan motor assembly comprises a fan motor subassembly with a plurality of replaceable fan motors, and a fan motor selector mechanism coupled to the fan motor sub... | 01/29/2008 |
| 7281909 | Hybrid compressor system for refrigeration cycle system A compressor device compresses refrigerant of a refrigeration cycle system and is connected to an engine and a motor to selectively receive drive force from one or both of the engine and the motor. When the engine is operated in an idling mode, a control apparatus e... | 10/16/2007 |
| 7278833 | Hybrid compressor A hybrid compressor includes a first compression mechanism, which is driven by a first drive source, a second compression mechanism, which is driven by a second drive source, and a communication path communicating between a suction chamber of the first compression m... | 10/09/2007 |
| 7249457 | Hydraulic gravitational load energy recuperation A hydraulic system has gravitional load energy recuperation by opening a recuperation piloted valve with a pilot pressure supplied by a hydraulic pump so as to drive a recuperation hydraulic motor with a source of fluid pressurized by gravity from the load. The recu... | 07/31/2007 |
| 7244106 | Process and device for flow control of an electrical motor fan A method and configuration from maintaining a constant of air to a protective helmet (4) from a fan (3) in a battery powered fresh air unit. The fan (3) is a radial fan with a filter (5) positioned on the suction side of the fan and is op... | 07/17/2007 |
| 7201010 | Compressor control system for vehicle air conditioner In a compressor control system for a vehicle air conditioner, a hybrid ECU of the vehicle controls a rotation speed of a compressor electric motor. In this case, an output circuit, which outputs a driving signal for driving the compressor electric motor, only needs ... | 04/10/2007 |
| 7172257 | Crawler track tension adjusting device A crawler track tension adjusting device is provided in which a driving unit having a closed structure carries out automatic tension adjustment in response to a control signal to create optimum tension on a crawler belt. The crawler track tension adjusting device in... | 02/06/2007 |
| 7140833 | Integrated turbo/drag/regenerative pump with counter-rotating turbo blades The present invention relates to vacuum pumps and a method for creating and maintaining a high vacuum. A vacuum pump includes a regenerative section and a turbo-molecular section. A common first rotor carries forward-rotating elements of both the regenerative sectio... | 11/28/2006 |
| 7142125 | Fan monitoring for failure prediction A method for monitoring a fan comprises measuring power usage of the fan, determining a derivative of the measured fan power usage, tracking the derivative over time, and predicting impending fan failure based on the tracked fan power usage derivative. ... | 11/28/2006 |
| 7131386 | Marine propulsion system with pressure compensated hydraulic supply capability A hydraulic system for a marine vessel incorporates a single hydraulic pump that can be driven by either first or second motive devices, such as an internal combustion engine or an electric motor. Depending on the circumstances, the pressure required by the hydrauli... | 11/07/2006 |
| 7127903 | Air conditioner for use in vehicles In an air conditioner for use in vehicles comprising a compressor that is connected to an engine driving a vehicle and operated by a driving force provided by the engine during operation of the engine, connection between the engine and the compressor is released in ... | 10/31/2006 |
| 7107776 | Air conditioning system for vehicle An air conditioning system includes a primary or engine-driven compressor that is driven by a primary driving source or engine, and a secondary or motor-driven compressor that is driven by a secondary driving source or motor. The air conditioning system increases in... | 09/19/2006 |
| 7093437 | Extended operability aircraft fuel delivery system A fuel delivery system for a gas turbine engine includes a main fuel pump supplying fuel to a fuel-metering device. The operational flow range of the fuel system is dependent on a minimum net positive suction pressure at the main pump inlet required to prevent pump ... | 08/22/2006 |
| 7021902 | Hybrid compressor A hybrid compressor includes a first compression mechanism, which is driven by a first drive source, and a second compression mechanism, which is driven by a second drive source. A first discharge port of the first compression mechanism and a second discharge port o... | 04/04/2006 |
| 6989646 | Multi-axis air/electrical control system A system for allowing a wide selection of components to affect a desired result in the positioning business. Up to nine axes of coordinated motion are offered each of which may use a servomotor, a single or double rod air cylinder. The control for the system is a se... | 01/24/2006 |
| 6986645 | Hybrid compressor with a selective drive clutch means and speed increasing means for driving the compressor at higher speeds with an engine at high load regions A hybrid compressor system affords maximum cooling capability by making full use of an additional motor to improve the fuel consumption efficiency of a vehicle while ensuring passenger compartment cooling when the engine is stopped. The hybrid compressor system incl... | 01/17/2006 |
| 6978632 | Air conditioning system for vehicles An air conditioning system for a vehicle includes a hybrid compressor having a first compression mechanism driven by a drive source for driving the vehicle and a second compression mechanism driven by an electric motor, means for selecting a drive source, a means fo... | 12/27/2005 |
| 6973781 | Method and apparatus for maintaining hydraulic pressure when a vehicle is stopped A system for maintaining hydraulic pressure in a vehicle hydraulic system when the vehicle is stopped or idling. A hydraulic pressure reserve system includes a primary hydraulic circuit that includes a hydraulic pump and a hydraulic sump and that provides hydraulic ... | 12/13/2005 |
| 6973798 | Air conditioning system for vehicle An air conditioning system 1 includes a primary compressor (an engine-driven compressor 6) driven by a primary driving source (an engine 2) and a secondary compressor (a motor-driven compressor 7) driven by a secondary driving source (a m... | 12/13/2005 |
| 6964631 | Integrated electric motor-driven oil pump for automatic transmissions in hybrid applications An electric motor is connected solidly to the main transmission oil pump shaft on the transmission case. An off-axis chain and gear are connected to the main oil pump shaft via a single freewheeling clutch, so that either source of torque in a hybrid motor can drive... | 11/15/2005 |
| 6956344 | High availability fan system A fan motor assembly with integrated redundant availability is recited. The fan motor assembly can include a fan motor subassembly with a first fan motor and a second fan motor, and a fan motor selector mechanism coupled to the fan motor subassembly, so that the fan... | 10/18/2005 |
| 6952929 | Air conditioning systems for vehicles, comprising such air conditioning systems, and methods for driving hybrid compressors of such air conditioning systems An air conditioning system for a vehicle includes a compressor. The vehicle includes a first drive source and the compressor includes a second drive source. The compressor is driven by the first drive source or the second drive source, or a combination thereof, and ... | 10/11/2005 |
| 6939114 | Dynamotor driven compressor and method for controlling the same A dynamotor capable of operating as either a motor or a generator is used with both the armature portion and the field portion thereof capable of being rotated. In the case where a pulley operatively interlocked with the output shaft of the prime mover is mounted on... | 09/06/2005 |
| 6933465 | Screw air compressor for a welder A portable and fully integrated welder and compressor combination includes a housing having an engine, electrical current generating alternator, and a belt-driven screw air compressor. The engine is configured to drive the generator directly, and a pulley arrangemen... | 08/23/2005 |
| 6915646 | HVAC system with cooled dehydrator An air conditioning system for a vehicle includes an accumulator/dehydrator (A/D) disposed in the suction fluid line for accumulating refrigerant and a heat transfer jacket surrounds the A/D for exchanging heat with the A/D and the refrigerant therein. The heat tran... | 07/12/2005 |
| 6830438 | Hybrid compressor A controlled compressor apparatus enables a hybrid compressor in an idle-stopping vehicle to operate more efficiently when driven by a motor alone. The controlled compressor apparatus includes a compressor 110, included in a refrigeration circuit 200, ... | 12/14/2004 |
| 6796138 | Air conditioning systems and vehicles comprising such air conditioning systems An air conditioning system for a vehicle including a first drive source, includes a compressor. The compressor includes a second drive source, and the compressor is driven by the first drive source or the second drive source, or a combination thereof. Moreover, the ... | 09/28/2004 |
| 6786055 | Air conditioning systems for vehicles comprising such air conditioning systems, and methods for driving hybrid compressors of such air conditioning systems An air conditioning system for a vehicle includes a compressor. The vehicle includes a first drive source and the compressor includes a second drive source. The compressor is driven by the first drive source or the second drive source, or a combination thereof, and ... | 09/07/2004 |
| 6718955 | Electric supercharger The present invention relates to a multiple electric motor driven centrifugal air compressor, for example, for gasoline or diesel engine powered vehicles. ... | 04/13/2004 |
| 6715995 | Hybrid compressor control method A method for controlling a hybrid compressor system is disclosed. The hybrid compressor system includes a variable displacement hybrid compressor that is selectively driven by one of an engine and an electric motor to cool a passenger compartment of a vehicle. The m... | 04/06/2004 |
| 6707204 | Rotational unit A mechanical rotational device includes a housing. An end portion of a rotary shaft protrudes from a front wall of the housing. An electric rotational device is coaxial with the rotary shaft and is coupled to the end portion of the rotary shaft. The electric rotatio... | 03/16/2004 |
| 6675596 | Compressor driven selectively by first and second drive sources A selectively driven compressor for stopping the power generating operation of a motor when an internal combustion engine is operating to make it unnecessary to provide the motor that can withstand high voltage. The system reduces the load on the internal... | 01/13/2004 |
| 6659727 | Control method for a dual mode compressor drive system An improved control method for a dual mode compressor drive arrangement selectively operates an electric machine coupled to the compressor as a motor or a generator during operation of an engine coupled to the compressor for improved efficiency and perfor... | 12/09/2003 |
| 6547527 | Generator unit with clutch-driven pump A portable power unit having an internal combustion engine, a tank for holding a supply of pressurized fluid, an electrical generator powered by the internal combustion engine, and a pump selectively powered by the internal combustion engine. An electro-m... | 04/15/2003 |
| 6485274 | Displacement machine for compressible media A displacement machine for compressible media includes at least two shafts. Each of the shafts has a rotor which is configured as a profiled body with the profiles of the rotors engaging one another in the manner of gearwheels during rotation and running ... | 11/26/2002 |
| 6457306 | Electrical drive system for rocket engine propellant pumps A liquid propellant supply system (10) according to the invention is electrical in nature and avoids the need for a gas generator and a turbine assembly. In particular, the system (10) includes an electrical power source (12), a controller (14) and a moto... | 10/01/2002 |
| 6447256 | Gear pump having a multishaft drive and method of operating same A gear pump having two meshing gears which are each assigned to a shaft and which are each driven by a driving unit. The driving units are controllable by a control unit such that the shafts rotate at a definable angular velocity. The control units have a... | 09/10/2002 |
