| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate parts for connecting between a rear head and a cylinder block, and reduce the number of part items by forming a communicating passage for communicating a first high pressure chamber formed in the rear head to a second high pressure chamber formed on a side surface of the cylinder block utilizing an inserting hole for a through bolt. SOLUTION: When rotary torque of an engine is transmitted to a shaft 5, an oscillating plate 10 is oscillated in association with its rotation, a piston 7 is reciprocated in a cylinder bore 6 for delivering high pressure refrigerant gas. When a delivery valve 17 is opened, the refrigerant gas delivered from a delivery port 16 to a delivery chamber 12 flows into a high pressure chamber 22 passing through an inclining hole 35, a passage 34, a space part 32, and a communicating passage 33, however, a rate of gas which flows into the high pressure chamber 22 is restricted in the inclining hole 35, the passage 34, the space part 32, and the communicating passage 33 so as to reduce pulsation generated by increase of the capacity in a second high pressure chamber 22. An inserting hole 31 for inserting a through bolt 30 of a cylinder block 1 is opened to the space part 32 so as to form the communicating passage 33 between the space part 32 and the second high pressure chamber 22.</p> |
