公开(公告)号：US06591735B2

公开(公告)日：2003-07-15

申请号：US09782779

申请日：2001-02-13

申请人： Lavlesh Sud ,  Mirza Qadir M. Baig ,  Srinivas S. Pitla ,  Vipen Khetarpal ,  Yong Huang

发明人： Lavlesh Sud ,  Mirza Qadir M. Baig ,  Srinivas S. Pitla ,  Vipen Khetarpal ,  Yong Huang

IPC分类号： F01B310

CPC分类号： F04B27/0878 ,  F04B27/109

摘要： A swashplate type compressor that includes one or more pistons having an extra support surface for receiving a side load is provided. In a first preferred embodiment of the piston, a rotational restrictor that overlaps the head region is utilized as the extra support surface. In a second preferred embodiment, a support projection, separate from the head region, is utilized as the extra support surface. The extra support surface of the piston of the present invention receives a portion of the side load exerted on the piston, thereby relieving some of stress applied to the head region.

公开(公告)号：US07014428B2

公开(公告)日：2006-03-21

申请号：US10328416

申请日：2002-12-23

申请人： Srinivas S. Pitla ,  Yong Huang ,  Vipen Khetarpal

发明人： Srinivas S. Pitla ,  Yong Huang ,  Vipen Khetarpal

IPC分类号： F04B1/26

CPC分类号： F04B27/1804 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/1831 ,  F04B2027/1845 ,  F04B2027/1854

摘要： A control system for a variable displacement compressor uses a mechanical valve to minimize energy consumption in an air conditioning system. The control system can also provide instantaneous indications to the vehicle controller of air conditioning power consumption to avoid engine loading. Controls are also used to contain oil within the compressor and to minimize its presence downstream of the compressor into the gas cooler and evaporator parts of the system.

摘要翻译： 用于可变排量压缩机的控制系统使用机械阀来最小化空调系统中的能量消耗。 控制系统还可以向车辆控制器提供空调功率的瞬时指示，以避免发动机负载。 控制器还用于在压缩机内容纳油，并将其压缩机下游的位置最小化到系统的气体冷却器和蒸发器部件中。

公开(公告)号：US06840054B2

公开(公告)日：2005-01-11

申请号：US10027548

申请日：2001-12-21

申请人： Srinivas S. Pitla ,  Vipen Khetarpal ,  Yong Huang

发明人： Srinivas S. Pitla ,  Vipen Khetarpal ,  Yong Huang

IPC分类号： F04B27/18 ,  F25B49/02 ,  F04B1/26 ,  F25B1/00

CPC分类号： F04B27/1804 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/1854 ,  F25B49/022

摘要： An air conditioning system for cooling a vehicle passenger compartment is disclosed. The system includes an air duct, a refrigerant circuit, a variable displacement compressor, and a controller. The air duct directs air conditioned air into the vehicle passenger compartment. The refrigerant circuit circulates a refrigerant, wherein a first portion of the circuit is exposed to the air duct and a second portion of the circuit is exposed to air external of the vehicle passenger compartment. The variable displacement compressor is in fluid communication with the refrigerant circuit, wherein the compressor has a control valve for regulating refrigerant flow between a compressor crankcase and a compressor discharge chamber and between the compressor crankcase and a compressor suction chamber. The controller in electrical communication with the variable displacement compressor for controlling refrigerant flow and a displacement of the compressor by actuating the control valves.

摘要翻译： 公开了一种用于冷却车辆乘客室的空调系统。 该系统包括空气管道，制冷剂回路，可变排量压缩机和控制器。 空气管道将空调空气引导到车辆乘客舱中。 制冷剂回路使制冷剂循环，其中电路的第一部分暴露于空气管道，并且电路的第二部分暴露于车辆乘客室外部的空气。 可变排量压缩机与制冷剂回路流体连通，其中压缩机具有用于调节压缩机曲轴箱和压缩机排出室之间以及压缩机曲轴箱与压缩机吸入室之间的制冷剂流动的控制阀。 与用于控制制冷剂流量的可变排量压缩机电连通的控制器和致动控制阀的压缩机的位移。

公开(公告)号：US06658986B2

公开(公告)日：2003-12-09

申请号：US10120688

申请日：2002-04-11

申请人： Srinivas S. Pitla ,  Chang Yun Ching ,  Vipen Khetarpal ,  Mirza Qadir M. Baig

发明人： Srinivas S. Pitla ,  Chang Yun Ching ,  Vipen Khetarpal ,  Mirza Qadir M. Baig

IPC分类号： F01B300

CPC分类号： F04B39/121 ,  F04B27/1081

摘要： A housing assembly for a refrigerant compressor in an air conditioning system includes a forward housing portion, and a rearward housing portion. The two mate together to contain the internal components and seal the compressor. A clamp engages the forward and the rearward housing portions and is rotated to compress the two together. It maintains a desired clamping force under various operating and environmental conditions.

公开(公告)号：US06431053B1

公开(公告)日：2002-08-13

申请号：US09802074

申请日：2001-03-08

申请人： Guntis Viktors Strikis ,  Shane A. Harte ,  Srinivas S. Pitla ,  Vipen Khetarpal

发明人： Guntis Viktors Strikis ,  Shane A. Harte ,  Srinivas S. Pitla ,  Vipen Khetarpal

IPC分类号： F01B3110

CPC分类号： F04B27/0878

摘要： The present invention relates to a piston for use in a swashplate type compressor. The piston includes a void in the exterior surface of the head region that is positioned at a distance from a region that receives a side load during operation of the compressor. In preferred embodiments, the void comprises a helical groove that extends along a path parallel to the region receiving the side load, and a recess or depression positioned adjacent the region receiving the side load.

摘要翻译： 本发明涉及一种用于斜盘式压缩机的活塞。 活塞在头部区域的外表面中包括空隙，其位于与在压缩机运行期间接收侧负荷的区域相距一定距离处。 在优选实施例中，空隙包括沿着平行于接收侧负载的区域的路径延伸的螺旋槽，以及邻近接收侧负载的区域定位的凹陷或凹陷。

公开(公告)号：US06908290B2

公开(公告)日：2005-06-21

申请号：US10427444

申请日：2003-05-01

申请人： Srinivas S. Pitla ,  Vipen Khetarpal

发明人： Srinivas S. Pitla ,  Vipen Khetarpal

IPC分类号： F04B27/10 ,  F04B39/00 ,  F04B39/12 ,  F04B27/08

CPC分类号： F04B39/125 ,  F04B27/1081 ,  F04B39/0055

摘要： A compressor for an automotive air conditioning system includes a cylinder head that comprises a mixing chamber, suction chamber and discharge chamber. The cylinder head comprises a first annular wall defining a mixing chamber and a second annular wall disposed about the first annular wall and spaced apart therefrom to define the suction chamber that communicates with the suction ports to the cylinder chambers. The discharge chamber is disposed about the second annular wall and communicates with the discharge ports. Refrigerant flows through the mixing chamber in a swirling or other turbulent pattern and into suction chamber through circumferentially spaced openings. By providing the mixing chamber and isolating the mixing chamber from the suction chamber, pressure pulsation resulting from opening of the suction ports to admit refrigerant is reduced.

摘要翻译： 一种用于汽车空调系统的压缩机，包括：气缸盖，其包括混合室，吸入室和排出室。 气缸盖包括限定混合室的第一环形壁和围绕第一环形壁设置并与其间隔开的第二环形壁，以限定与抽吸端口连通至气缸室的抽吸室。 排出室围绕第二环形壁设置并与排出口连通。 制冷剂通过旋转或其他湍流图案通过混合室流动，并通过周向间隔开的开口流入吸入室。 通过提供混合室并将混合室与吸入室隔离，减少了吸入口的打开而导致制冷剂引起的压力脉动。

公开(公告)号：US06860188B2

公开(公告)日：2005-03-01

申请号：US10600140

申请日：2003-06-20

申请人： Srinivas S. Pitla ,  Vipen Khetarpal

发明人： Srinivas S. Pitla ,  Vipen Khetarpal

IPC分类号： F01B3/00 ,  F01B3/02 ,  F04B27/10 ,  F04B27/14

CPC分类号： F04B27/1072

摘要： A hinge mechanism for a variable displacement swash plate type compressor including an arm extending from a rotor and a pair of arms extending from a swash plate hub, wherein a pair of shoes are interposed between the arm of the rotor and each of the arms of the swash plate hub to facilitate a tilting of a swash plate disposed on the swash plate hub, the hinge mechanism militating against undesirable contact between the arms of the swash plate hub and the arm of the rotor.

摘要翻译： 一种用于可变排量斜盘式压缩机的铰链机构，包括从转子延伸的臂和从斜盘毂延伸的一对臂，其中一对鞋被插入在转子的臂和每个臂之间 旋转斜盘毂以便于设置在斜盘毂上的斜盘的倾斜，铰链机构有助于防止旋转斜盘毂的臂与转子的臂之间的不期望的接触。

公开(公告)号：US07021193B2

公开(公告)日：2006-04-04

申请号：US11038952

申请日：2005-01-20

申请人： Srinivas S. Pitla ,  Vipen Khetarpal

发明人： Srinivas S. Pitla ,  Vipen Khetarpal

IPC分类号： F01B3/02

CPC分类号： F04B27/1072

摘要： A hinge mechanism for a variable displacement swash plate type compressor including an arm extending from a rotor and a pair of arms extending from a swash plate hub, wherein a pair of shoes are interposed between the arm of the rotor and each of the arms of the swash plate hub to facilitate a tilting of a swash plate disposed on the swash plate hub, the hinge mechanism militating against undesirable contact between the arms of the swash plate hub and the arm of the rotor.

摘要翻译： 一种用于可变排量斜盘式压缩机的铰链机构，包括从转子延伸的臂和从斜盘毂延伸的一对臂，其中一对鞋被插入在转子的臂和每个臂之间 旋转斜盘毂以便于设置在斜盘毂上的斜盘的倾斜，铰链机构有助于防止旋转斜盘毂的臂与转子的臂之间的不期望的接触。

公开(公告)号：US06354809B1

公开(公告)日：2002-03-12

申请号：US09492236

申请日：2000-01-27

申请人： Bjoern Fagerli ,  Vipen Khetarpal ,  Yong Huang

发明人： Bjoern Fagerli ,  Vipen Khetarpal ,  Yong Huang

IPC分类号： F04B2314

CPC分类号： F04B27/1072 ,  F04B27/1054 ,  F04B27/12 ,  F04B27/18

摘要： A variable swash plate compressor (10), including a housing (12), a top inlet (14A), a bottom inlet (14B), a pumping chamber (16), a compression piston (18), a top outlet (20A), a bottom outlet (20B), a drive shaft (22), a control surface element (24), a pinnacle element (26), a swash plate (28), a bore (30) and a pocket (32) formed in the swash plate (28), a pivot element tip (38) and fulcrum piston assembly (40). Wherein the angle of the swash plate (28) relative to the drive shaft (22) is varied to bring about a larger or smaller travel path of the double-sided compression piston (18) and thereby increasing or decreasing the output capacity of the variable swash plate compressor (10).

摘要翻译： 一种可变斜盘压缩机（10），包括壳体（12），顶部入口（14A），底部入口（14B），泵送室（16），压缩活塞（18），顶部出口（20A） ，底部出口（20B），驱动轴（22），控制表面元件（24），顶点元件（26），斜盘（28），孔（30）和形成在其中的凹穴 旋转斜盘（28），枢轴元件尖端（38）和支点活塞组件（40）。 其中斜盘（28）相对于驱动轴（22）的角度改变以产生双面压缩活塞（18）的更大或更小的行进路径，从而增加或减小变量的输出容量 旋转斜盘压缩机（10）。

公开(公告)号：US06402480B1

公开(公告)日：2002-06-11

申请号：US09747624

申请日：2000-12-22

申请人： Lavlesh Sud ,  Vipen Khetarpal ,  Shane A. Harte ,  David H. Herder ,  Yong Huang

发明人： Lavlesh Sud ,  Vipen Khetarpal ,  Shane A. Harte ,  David H. Herder ,  Yong Huang

IPC分类号： F04B126

CPC分类号： F04B27/109

摘要： A variable displacement swash plate type compressor which incorporates a lubrication passage formed in the drive shaft, wherein the lubrication passage provides fluid communication between a discharge chamber and a crank chamber. The lubrication passage maximizes the low of refrigerant gas and lubricating oil to the crank chamber under all operating conditions providing cooling and lubrication to the internal moving components in the crank chamber. The lubrication passage facilitates the efficient flow of lubricating oil from the discharge chamber to the crank chamber.

摘要翻译： 一种可变排量斜盘式压缩机，其包括形成在所述驱动轴中的润滑通道，其中所述润滑通道在排出室和曲柄室之间提供流体连通。 润滑通道在所有操作条件下将制冷剂气体和润滑油的低度最大化到曲柄室，从而为曲柄室中的内部移动部件提供冷却和润滑。 润滑通道有助于润滑油从排放室到曲柄室的有效流动。