Patent ID: 6705843
Filing Date: 2004-03-16
Classification: F04B,Y10S

Abstract:
A rear housing for a compressor, the compressor having a cylinder block receiving low pressure fluid from the rear housing via a plurality of suction openings, the cylinder block providing high pressure fluid to the rear housing via a plurality of discharge openings, the rear housing comprising:an annular inner wall; an annular muffler wall circumscribed by the inner wall, the muffler wall defining a muffler chamber; a discharge chamber defined between the muffler wall and the inner wall, the discharge chamber in fluid communication with a discharge port for transmitting high pressure fluid; a first divider wall and a second divider wall extending between the muffler wall and the inner wall, the first and second divider walls being spaced apart to define first and second portions of the discharge chamber, the second portion of the discharge chamber communicating with the discharge port; and the muffler wall defining a first restriction between the first portion of the discharge chamber and the muffler chamber, the muffler wall defining a second restriction between the second portion of the discharge chamber and the muffler chamber, the restrictions attenuating the turbulence of the fluid flow from the first portion to the second portion through the muffler chamber.