专利名称：Compressor housing发明人：Bearint, David E.,Miller, James I申请号：EP98307963.3申请日：19980930公开号：EP0916847A1公开日：19990519
专利附图：
摘要：A variable capacity, vane-type compressor has a cylinder block (13) with an ovalrotor chamber (15). A plurality of vanes (17) mounted in slots on a rotor (19) rotate insidethe rotor chamber on a shaft (21) that is concentric with the minor diameter of the rotorchamber. Valves discharge refrigerant gas from the rotor chamber. The front nose block
(31) is located on the front side of the cylinder block and contains a bore (33) for therotor shaft and a set of needle roller bearings (35) which supports the forward end of theshaft. A circular O-ring groove (37) with an O-ring is located on the rearward side of thefront nose block at its perimeter for sealing between the front nose block and theforward side of the cylinder block. The cylinder block has internal, weight-reducing voidslocated outboard of the rotor chamber. The lower voids serve as an oil sump (16) andsupply high pressure lubricant to the undervane pressurization manifolds. Like the frontnose block groove, the cylinder block has a circular groove (45) machined on a rearwardside. The cylinder block groove contains an O-ring for sealing against the rear side block.The rear side block (51) has a bore (53) for the shaft and a needle roller bearing (55)which supports the rearward end of the shaft. A circular O-ring groove (57) is machinedon the rearward side of the rear side block and holds an O-ring for sealing between therear side block and the rear head. A lubricant transmitting passage (67) is located in theblocks. The passage leads from the intake chamber (63) at the rear of the compressor tothe bore at the front radial bearing. Each of the components has bolt ears with threadedbolts (75) for securing the components together. The bolt ears are located in theformerly wasted space at the four corners providing the compressor with a rectangularexternal configuration.
申请人：ZEXEL USA CORPORATION
地址：707 Southside Drive Decatur, Illinois 62521 US
国籍：US
代理机构：Lawrence, John Gordon
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