公开(公告)号：EP1003971A2

公开(公告)日：2000-05-31

申请号：EP98940868.7

申请日：1998-08-13

申请人： BRISTOL COMPRESSORS INC.

发明人： LOPRETE, Joseph, F. ,  YOUNG, Michael, R. ,  TOLBERT, John, W., Jr. ,  MONK, David, T. ,  WAGNER, Philip, C. ,  HILL, Joe, T. ,  PIPPIN, Larry ,  PETERS, Robert, B.

IPC分类号： F04B49/00

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

摘要： 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.

公开(公告)号：EP1003971B1

公开(公告)日：2005-12-21

申请号：EP98940868.7

申请日：1998-08-13

申请人： BRISTOL COMPRESSORS INC.

发明人： LOPRETE, Joseph, F. ,  YOUNG, Michael, R. ,  TOLBERT, John, W., Jr. ,  MONK, David, T. ,  WAGNER, Philip, C. ,  HILL, Joe, T. ,  PIPPIN, Larry ,  PETERS, Robert, B.

IPC分类号： F04B49/00

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

公开(公告)号：EP1381777A1

公开(公告)日：2004-01-21

申请号：EP02721621.7

申请日：2002-03-27

申请人： BRISTOL COMPRESSORS INC.

发明人： MONK, David ,  PIPPIN, Larry ,  HATZIKAZAKIS, Pantelis ,  SUN, William ,  WAMPLER, Timothy ,  ZIMMERMAN, Charles

IPC分类号： F04C29/10 ,  F04B49/035 ,  F25B31/00

CPC分类号： F04C28/06 ,  F04B49/035 ,  F25B31/00 ,  F25B41/04 ,  F25B2500/26 ,  F25B2500/27

摘要： A pressure equalization method and system (10) is provided for starting a compressor (2) while maintaining the condenser (8) at a high pressure and comprises a valve (28) and a bleed port (26). The compressor (2) has a compressor inlet (16) for receiving a fluid at a first pressure and a compressor outlet (20) for discharging the fluid at a second pressure, and is operable to compress the fluid from the first pressure to the second pressure. The valve (28) is proximate to and in fluid communication with the compressor outlet (20) and is movable to an open position when the compressor (2) is operating to allow the fluid at the second pressure to flow through the valve (28) and is movable to a closed position when the compressor (2) stops operating to prevent backflow of the fluid at the second pressure through the valve (28) toward the compressor inlet (16). The bleed port (26) is upstream of the valve (28) and in fluid communication with the compressor inlet (16) to equalize the pressure of the fluid contained in the compressor (2) when the compressor (2) stops operating.