公开(公告)号：US20040253131A1

公开(公告)日：2004-12-16

申请号：US10814506

申请日：2004-04-01

申请人： LG Electronics Inc.

发明人： Dong Woo Park ,  Min Kyu Jung

IPC分类号： F04B001/12 ,  F04B027/08 ,  F04B007/04

CPC分类号： F04B39/1073 ,  F04B39/0005

摘要： The present invention relates to a reciprocating compressor. There is a compression chamber inside of a cylinder, having a piston inserted therein. The piston includes a head, a skirt extended from a lower end of the head so as to be spaced away from an inside wall of the cylinder, and guide surfaces extended from an outside surface of the skirt. Since the skirt is not in contact with the cylinder, a friction loss between the piston and the cylinder is reduced, and the guide surfaces assist the piston to make stable reciprocation. The head has a projection so as to be inserted into a discharge hole when the piston is at a top dead center. According to this, a dead volume formed when the piston is at the top dead center is reduced, thereby improving an efficiency of the compressor.

摘要翻译： 往复式压缩机技术领域本发明涉及往复式压缩机。 在气缸内部有一个压缩室，其中插入活塞。 活塞包括头部，从头部的下端延伸以与气缸的内壁间隔开的裙部以及从裙部的外表面延伸的导向表面。 由于裙部不与气缸接触，所以活塞和气缸之间的摩擦损失减小，导向面辅助活塞进行稳定的往复运动。 头部具有突起，以便当活塞处于上止点时插入到排出孔中。 因此，当活塞处于上止点时形成的死体积减小，从而提高压缩机的效率。