| 摘要 |
A compressor is provided to mix high-pressure high-temperature gas remaining in a cylinder bore with a refrigerant drawn through the channel of a driving shaft in order to lower the gas. A compressor comprises a driving shaft(150) to which a swash plate(160) is coupled in a swash chamber(136) and in which a channel(151) is formed, front and rear cylinder blocks(130, 140), a plurality of pistons(170), front and rear housings(110, 120), and a valve unit(190). The driving shaft(150) is provided with through-holes(154), which communicate with the channel just after the pistons pass a bottom dead point to reach a top dead point at which compression is completed. The channel has a pair of inlets(152), passing through both a hub of the swash plate and the driving shaft, in a radial direction so as to communicate with the swash chamber, and an outlet(153) communicating with intake passages(132, 142) of the front and rear cylinder blocks.
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