公开(公告)号：US20020170301A1

公开(公告)日：2002-11-21

申请号：US10140946

申请日：2002-05-09

Applicant: Bristol Compressors, Inc.

Inventor： Joseph F. Loprete ,  Michael R. Young ,  John W. Tolbert JR. ,  David T. Monk ,  Philip C. Wagner ,  Joe T. Hill ,  Larry Pippin ,  Robert B. Peters

IPC: F25B007/00 ,  F25B013/00

CPC classification number: F25B1/10 ,  F04B39/0005 ,  F04B39/0094 ,  F04B39/0246 ,  F04B49/06 ,  F04B49/126 ,  F04B2201/0206 ,  F04B2205/15 ,  F25B2400/074 ,  G11C16/08

Abstract: A two stage reciprocating compressor and associated HVAC systems and methods are disclosed. The reciprocating compressor includes a crankshaft having an eccentric crankpin, a reversible motor for rotating the crankshaft in a forward and a reverse direction, and an eccentric, two position cam rotatably mounted over the crankpin. The crankshaft and cam combine to cause the piston to have a first stroke when the motor operates in the forward direction and a second stroke when the motor operates in the reverse direction. The cam and crankpin also include stabilization means to restrict the relative rotation of the cam about the crankpin. A lubrication system is provided to lubricate the engaging surfaces of the crankshaft and cam and between the cam and the bearing surface of the connecting rod. There is also provided a control for selectively operating the motor either in the forward direction at a first power load or in the reverse direction at a reduced second power load. A protector for the motor is also provided. In addition, the application of the reciprocating compressor to both air conditioning and heat pump systems is disclosed.

Abstract translation: 公开了两级往复式压缩机和相关的HVAC系统和方法。 往复式压缩机包括具有偏心曲柄销的曲轴，用于使曲轴向前和向后旋转的可逆电动机和可旋转地安装在曲柄销上的偏心的两位置凸轮。 当电动机在正向工作时，曲轴和凸轮组合以使活塞具有第一冲程，并且当电动机沿相反方向工作时，该活塞具有第一冲程。 凸轮和曲柄销还包括限制凸轮围绕曲柄销的相对旋转的稳定装置。 提供润滑系统以润滑曲轴和凸轮的接合表面以及凸轮与连杆的支承表面之间。 还提供了一种用于在减小的第二功率负载下在第一功率负载或反向的方向上选择性地操作电动机的控制。 还提供电机保护器。 此外，公开了往复式压缩机对空调和热泵系统的应用。