Patent ID: 7563084
Filing Date: 2009-07-21
Classification: F04C

Abstract:
1. A rotary fluid machine comprising: a cylinder arranged in an airtight container and including first and second a cylinder bodies, first and second end plates arranged at first and second opposite end portions of the first and second cylinder bodies outside the first and second cylinder bodies, and a partition plate sandwiched between the first and second cylinder bodies, each of the first and second end plates having a high pressure port; and first and second roller portions disposed in the first and second cylinder bodies, respectively, the first and second roller portions including first and second cut portions, respectively, each of the first and second roller portions slidably contacting the partition plate and one of the first and second end plates, respectively, each of the first and second roller portions having an end surface facing a respective one of the first and second end plates that has a larger width than an opposite end surface disposed to face the partition plate with the partition plate having a central opening allowing fluid communication between the second cut portions of the opposite end surfaces of the first and second rollers through the partition plate, and a gas discharged through the high pressure ports being temporarily retained in the airtight container.