Patent application number | Description | Published |
20090136366 | Compressor - [Object of the Invention] An object of the present invention is to provide a compressor comprising a compressing mechanism, a discharge chamber, a housing accommodating the compressing mechanism and the discharge chamber, a discharge port communicating with the discharge chamber through a discharge passage and also with an external refrigerant circuit, a muffler formed by an expanded space disposed on the discharge passage, and a check valve disposed on the discharge passage, wherein the pressure loss caused by the discharge passage is smaller than that in the conventional compressor. | 05-28-2009 |
20090173094 | AIR CONDITIONER - [Object of the Invention] An object of the present invention is to provide an air conditioner whose operation mode is switchable between cooling mode and heating mode using highly pressurized hot gas in refrigerant cycle, wherein both a cooling mode operation for variably controlling the displacement of the variable displacement compressor, thereby controlling car interior cooling temperature to a predetermined level, and a heating mode operation for variably controlling the displacement of the variable displacement compressor, thereby controlling car interior heating temperature to a predetermined level, can be implemented. | 07-09-2009 |
20100175401 | DISPLACEMENT CONTROL SYSTEM FOR A VARIABLE DISPLACEMENT COMPRESSOR - A discharge displacement control system for a variable displacement compressor includes controlled object setting means. The controlled object setting means selects a control mode out of two or more control modes in accordance with external information detected by external information detection means, and sets a controlled object matching the selected control mode. In accordance with the external information detected by the external information detection means, the controlled object setting means sets, as the controlled object, a target pressure for one of a pressure in a suction pressure region and a pressure in a crank chamber in a first control mode, which is one of the control modes, and a target working pressure difference between a pressure in a discharge pressure region and one of the pressure in the suction pressure region and the pressure in the crank chamber in a second control mode, which is another of the control modes. | 07-15-2010 |
20100215514 | Variable Displacement Compressor - A displacement control valve for a variable displacement compressor includes a valve element. The valve element has a discharge pressure receiving surface which receives pressure in a discharge chamber and a suction pressure receiving surface which receives pressure in a suction pressure section acting in a direction opposite to the direction that the pressure in the discharge chamber acts on the discharge pressure receiving surface. The displacement control valve also includes a solenoid generating an electromagnetic force acting on the valve element, and a urging means urging on the valve element in a valve closing direction to hold the valve element in a valve closing position when the electromagnetic force generated by the solenoid is not acting on the valve element. | 08-26-2010 |
20100260619 | Displacement Control System for Variable Displacement Compressor - A displacement control system (A) of a variable displacement compressor comprises a target pressure setting means ( | 10-14-2010 |
20110076161 | Displacement Control System for Variable Displacement Compressor - A displacement control system (B) for a variable displacement compressor has an electromagnetic clutch ( | 03-31-2011 |
20110091334 | Variable Displacement Compressor - A variable displacement compressor having a swash plate capable of being changed with inclination angle for converting the rotation of a drive shaft into the reciprocating motion of pistons comprises a plurality of urging means each having one end brought into contact with the swash plate and urging the swash plate in the direction of increasing an inclination angle of the swash plate, wherein the plurality of urging means are constructed so that the number of urgings is increased as the inclination angle of the swash plate is decreased. The freedom of adjustment of the urging force due to the urging means for increasing the inclination angle of the swash plate can be enlarged by a simple structure, and the urging force can be finely adjusted in accordance with the inclination angle of the swash plate. Consequently, the adjustment of the urging force due to the urging means for urging the swash plate in the inclination angle increasing direction can be optimized, and the swash plate can be allowed to perform a desirable operation near the minimum inclination angle. | 04-21-2011 |
20110182753 | Capacity Control Valve, Variable Capacity Compressor and Capacity Control System Therefor - Provided are a capacity control valve, a variable capacity compressor, and a capacity control system, which control a discharge capacity stably even when a cooling load is small, and reduce the risk of damaging a compressor even in a state when the quantity of a refrigerant is insufficient. The capacity control valve ( | 07-28-2011 |
20110194951 | Variable Displacement Compressor - Disclosed is a variable displacement compressor provided with a displacement control valve capable of easily adjusting an optimum level the sensitivity to a rise in the pressure in a crank chamber. The variable displacement compressor is configured in such a manner that the stroke of a piston is adjusted by changing the pressure in the crank chamber, the pressure in the crank chamber being changed by adjusting the degree of opening of the displacement control valve for opening and closing a path for communicating between a discharge chamber and the crank chamber, wherein the displacement control valve is provided with a valve chamber communicating with the discharge chamber, a valve hole, a valve element for opening and closing the valve hole, a pressure sensing chamber communicating with a suction chamber, a pressure sensing member disposed in the pressure sensing chamber, and a pressure sensing rod having one end connected to the pressure sensing member and the other end connected to the valve element and driving the valve element in response to displacement of the pressure sensing member. The pressure in the crank chamber acts on the valve element from the valve hole side in the direction of opening of the valve element, and acts on the pressure sensing rod from the valve hole side in the direction of closing of the valve element. That area (Sr) of the pressure sensing rod which receives the pressure in the crank chamber is set to be greater than that area (Sv) of the valve element which receives the pressure in the crank chamber. | 08-11-2011 |
20110219797 | Capacity Control System for Variable Capacity Compressor and Display Device for the System - A capacity control system for a variable capacity compressor includes target suction pressure setting means for setting, based on external information input from external information detection means, a target suction pressure for controlling the pressure in a suction pressure region as a control target, suction pressure estimation means for estimating, based on the external information, a pressure that is estimated to prevail in the suction pressure region if the variable capacity compressor is operated with a maximum discharge capacity, and discharge capacity determination means for determining, based on the suction pressure estimated by the suction pressure estimation means and the target suction pressure set by the target suction pressure setting means, whether the variable capacity compressor is operating with the maximum discharge capacity or with a controlled discharge capacity. | 09-15-2011 |
20120128509 | Reciprocating Compressor - [Object of the Invention] An object of the present invention is to provide a reciprocating compressor comprising an aperture control valve for an inlet passage, wherein installation of the aperture control valve is easy, sufficient sectional area of the inlet passage is maintained near the outlet holes of the aperture control valve, distribution of flaw rates of refrigerant gas sucked into the cylinder bores during inlet stroke is even, and the inlet chamber operates as a muffler to make it possible to optimize the structure of the aperture control valve from the viewpoint of decreasing inlet pressure pulsation. | 05-24-2012 |
20120237371 | Reciprocation Compressor - [Object of the Invention]An object of the present invention is to provide a reciprocation compressor comprising an extraction passage connecting a crank chamber with an inlet chamber, an aperture disposed in the extraction passage and a filter capturing foreign matters flowing from the crank chamber to the inlet chamber, wherein the foreign matters captured by the filter is restrained from returning to the crank chamber even if reverse flow of refrigerant from the inlet chamber to the crank chamber is generated, and the filter does not restrict design specifications of other members of the compressor. | 09-20-2012 |
20120251343 | Control Valve and Variable Capacity Swash-Plate Type Compressor Provided with same - [Object of the Invention] An object of the present invention is to provide a control valve that accommodates a pressure sensitive unit in a solenoid unit and is of simple structure. | 10-04-2012 |
Patent application number | Description | Published |
20090246041 | DISPLACEMENT CONTROL VALVE OF A VARIABLE DISPLACEMENT COMPRESSOR - [Object of the Invention] An object of the present invention is to provide a displacement control valve of a variable displacement compressor for opening and closing a communication passage extending between a portion of the compressor on which discharge pressure acts and a crank chamber of the compressor, thereby controlling the displacement of the compressor, wherein discharge chamber pressure does not act on the valve body in the opening and closing direction, pressures acting on the opposite ends of the valve body are reliably maintained at the same level, and the structure thereof is simple. | 10-01-2009 |
20130259714 | Variable Displacement Compressor - Overpressure of refrigerant in a refrigerant circuit is avoided. A swash plate type variable displacement compressor includes a muffler (muffler space | 10-03-2013 |
20140234129 | Variable Capacity Compressor - A variable capacity compressor including swash plate connected to rotor via link mechanism can calculate a moment of rotational motion acting on swash plate and set the total moment of rotational motion in inclination angle increasing direction acting on swash plate at minimum inclination angle to a small value. The shape or the like of swash plate | 08-21-2014 |
20140377087 | Variable Displacement Compressor - Variable displacement compressor, with center bore | 12-25-2014 |
20150118073 | Variable-Capacity Comprenssor And Method For Manufacturing Same - A variable displacement compressor having means for regulating the minimum inclination angle of a swash plate, a spring urging the swash plate in the inclination angle-increasing direction, and a spring urging the swash plate in the inclination angle-decreasing direction. The swash plate inclination angle is θa as the sum of the urging forces of both springs is zero, when the drive shaft is not rotated; and, when the drive shaft is rotated, its inclination angle is θb at which the sum of moments MS, MF is zero. Moment MS of rotational motion is based on selling the product of inertia in the variable-angle direction of the swash plate to decrease the inclination angle of the swash plate from θa. Moment MF is based on the combined urging force of both springs set so that the inclination angle θb is positioned at a minimum angle at maximum rotational speed. | 04-30-2015 |
20150252797 | Variable-Capacity Compressor - To prevent operation failure caused by adhesion of a lubricating oil of a control valve for controlling a discharge displacement. A partition member | 09-10-2015 |
20150300711 | Compressor - A compressor capable of reducing oil circulation rate with a simple structure is provided. A compressor | 10-22-2015 |
20160033046 | Control Valve And Variable-Displacement Compressor Provided With Said Control Valve - A control valve capable of reducing vibration of a housing member, and a variable-displacement compressor provided with this control valve, are provided. A control valve | 02-04-2016 |