| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve performance or durability, in a compressor in which a piston has a silencer function. <P>SOLUTION: In the compressor, a cylinder housing has a cylinder bore 6, a first suction chamber, and a first communication hole 17 communicating with the first suction chamber and opened to an inner circumferential face of the cylinder bore. A piston 8 is slidably disposed in the cylinder bore 6, and is provided with a second suction chamber 20 and a second communication hole 21 communicating with the second suction chamber 20 and opened to a side circumferential face of the piston 8. At a suction stroke of the piston 8, the first suction chamber communicates with the second suction chamber 20 through the first communication hole 17 and second communication hole 21, and refrigerant gas is supplied from the second suction chamber 20 into the cylinder bore 6 through a suction hole 22. A peripheral part of an opening of the second communication hole 21 of the piston 8 is depressed to the inside, and a clearance d between the peripheral part of the opening of the second communication hole 21 and an inner peripheral face of the cylinder bore 6 is wider than the other portion. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
