US 7,458,789 B2
Scroll compressor
Akira Hiwata, Kyoto (Japan); Takashi Morimoto, Kyoto (Japan); Yoshiyuki Futagami, Shiga (Japan); Noboru Iida, Shiga (Japan); and Kiyoshi Sawai, Shiga (Japan)
Assigned to Matsushita Electric Industrial Co., Ltd., Kodoma-Shi (Japan)
Appl. No. 10/560,365
PCT Filed Jun. 09, 2004, PCT No. PCT/JP2004/008378
§ 371(c)(1), (2), (4) Date May 11, 2006,
PCT Pub. No. WO2004/111462, PCT Pub. Date Dec. 23, 2004.
Claims priority of application No. 2003-167400 (JP), filed on Jun. 12, 2003.
Prior Publication US 2007/0201997 A1, Aug. 30, 2007
Int. Cl. F04C 18/04 (2006.01)
U.S. Cl. 418—55.6  [418/91; 418/100] 26 Claims
OG exemplary drawing
 
1. A scroll compressor in which a fixed scroll part and an orbiting scroll part are meshed with each other to form a compression chamber, said orbiting scroll part is allowed to orbit in a circular orbit while restraining said orbiting scroll part from rotating by a rotation-restraint mechanism, a refrigerant is sucked, compressed and discharged while continuously varying a capacity of said compression chamber, wherein
an oil supply passage is formed in a suction space of said fixed scroll part, and said suction space is provided with an oil collision part, wherein
a side surface of said oil collision part on the side of a refrigerant passage is a concave curved surface, one of end surfaces of said curved surface is formed on an extension surface of a suction pipe connected to said suction space, an intersection angle between a tangent of said one end surface of said curved surface and a tangent of the other end surface of said curved surface is an acute angle.