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| Number | Title | Issue Date |
| 7320576 | Clutchless variable displacement refrigerant compressor with mechanism for reducing displacement work at increased driven speed during non-operation of refrigerating system including the compressor In a variable displacement swash plate type refrigerant compressor (10), a stopper (28) is provided for setting an initial angle of the inclination angle of a swash plate (23) when a drive shaft (19) is not driven. When the drive shaft ( | 01/22/2008 |
| 6945062 | Heat pump water heating system including a compressor having a variable clearance volume A heat pump water heater system includes a compressor that has a variable clearance volume that can be selectively controlled to control the mass flow rate of refrigerant from the compressor. Under higher ambient air temperature conditions, the variable volume is in... | 09/20/2005 |
| 6797063 | Dispensing apparatus Described are dispensing apparatuses and methods of their use, the dispensing apparatuses having one or more process chamber inside of a control chamber, and the volume of the process chamber increases or decreases by adding or removing control fluid from the contro... | 09/28/2004 |
| 6257838 | Gas compressor A gas compressor for vehicle braking systems controlled by compressed air can be operated under load or in idle operation. In idle operation, no compressed air is produced. In operation under load, the gas compressor produces compressed air as required by... | 07/10/2001 |
| 6095762 | Compressor mechanism for a portable battery operated inflator An inflator mechanism has a valve adapted to secure with the device to be inflated. A compressor is fluidly coupled with the valve mechanism. The compressor mechanism generates fluid to inflate the device. The compressor mechanism includes a motor to driv... | 08/01/2000 |
| 6056517 | Compressor for the air-conditioning system of a motor vehicle A compressor for an air-conditioning system of a motor vehicle is proposed, which has a controllable compression medium feed mechanism powered by a drive shaft and which, for example, is powered by the combustion engine of the motor vehicle by a belt driv... | 05/02/2000 |
| 5735675 | Combination compressor unloader A combination compressor unloader which has a horizontal cylinder and a double acting piston forming two compression chambers. Each chamber communicates by a passageway with a supplementary chamber with each passageway associated with a reversible actuato... | 04/07/1998 |
| 5141413 | Gas compressor having a variable-volume clearance pocket, and means for varying a clearance pocket in a gas compressor The compressor has a straight cylinder wholly confined within which are inlet valves, and reciprocatable discharge valves. One inlet valve is set in place by a centerbolt which can be turned by a wrench (or the like) to move the inlet valve to selected po... | 08/25/1992 |
| 5049040 | Compressor capacity modulation A variable capacity compressor in which each compression chamber has a reexpansion chamber the volume of which is selectively controlled by pressurized lubricant.... | 09/17/1991 |
| 4737080 | Valve assembly A valve assembly is provided which includes a seat structure and a cage structure. A valve member is movable between open and closed positions and includes an upstream side adapted to engage the seat structure with the valve member in its closed position ... | 04/12/1988 |
| 4502844 | Refrigerant compressor with mechanism for adjusting capacity of the compressor A reciprocating piston type refrigerant compressor is disclosed which includes a compressor housing having a cylinder block provided with a plurality of cylinders and a crank chamber adjacent the cylinder block. A piston slides within each cylinder and is... | 03/05/1985 |
| 4486148 | Method of controlling a motive power and fluid driving system A method of controlling a motive power and fluid driving system according to the present invention is disclosed, which generally comprises the steps of sensing a plurality of operating parameters and at least one control parameter defining the energy quot... | 12/04/1984 |
| 4384826 | Method and apparatus for controlling communication with a compressor unloader chamber A compressor unloader system and method is disclosed, comprising a pneumatically controlled one-way valve member for controlling communication between an unloader chamber and a compression chamber of a compressor. The one-way valve member has one surface ... | 05/24/1983 |
| 4330237 | Compressor and engine efficiency system and method A method and system for controlling natural gas compressor and engine units. Particularly, the control method provides for the adjustment of the engine speed and compressor loading, so as to minimize the compressing energy required while maintaining a des... | 05/18/1982 |
| 4068562 | Cylinder of piston compressor A cylinder of a piston compressor comprises a piston movable along the axis of the cylinder, a cylindrical admission valve and a cylindrical delivery valve. The admission valve communicates an admission space of the cylinder with a working space thereof. ... | 01/17/1978 |
| 3951569 | Air conditioning compressor A piston type compressor for use with an automotive air conditioning system with the capabilities of successfully operating over a wide range of ambient temperatures including apparatus to automatically modify the compressor displacement in response to op... | 04/20/1976 |
