| 摘要 |
<p>PURPOSE:To prevent burning of a control piston by absorbing gas from an auxiliary intake chamber into a compression chamber formed by a cylinder bore and a piston through an intake valve. CONSTITUTION:A communicating hole 21 drilled in a cylinder block 1 communicates the bottom part oil reservoir 23 of a swash plate chamber 22 formed between cylinder blocks 1 and 2 with a circular hole 16 in which the cylindrical part 17 of a control piston 15 is inserted. Gas to be compressed firstly enters into the swash plate chamber 22 and flows once into an auxiliary intake chamber 26 passing through an intake gas passage. Then, the gas is absorbed into a compression chamber 28 passing through an intake valve 29. Accordingly, since the pressure in the auxiliary intake chamber 26 becomes lower than the pressure in the swash plate chamber 22, oil stored in the oil reservoir on the swash plate chamber 22 bottom part is sucked in the sliding surface of the cylindrical part outer circumference of the control piston 15 passing through the communicating hole 21. It is thus possible to prevent burning of the control piston 15.</p> |
