F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
230/37
F04C 18/02 (2006.01) F01C 17/06 (2006.01)
Patent
CA 1153996
ABSTRACT OF THE DISCLOSURE A scroll-type refrigerant compressor unit is obtained in which any deflection and undesired vibration of moving parts are prevented by a simple construction and in which the orbiting scroll member is prevented from rotating by a simple mechanism. A disk rotor having a drive pin is mounted on an inner end of a drive shaft which is rotatably mounted through a front end plate of a compres- sor housing. The disk rotor is rotatably supported on the inner surface of the front end plate through a thrust bearing. The orbiting scroll member is rotatably mounted on the drive pin. The orbiting scroll member has a radial flange inte- grally formed with the scroll member which flange is supported on the disk rotor through a thrust bearing. Therefore, drive shaft, disk rotor, drive pin and orbiting scroll member are supported without undesired deflection and vibration during operation. A ring like slider plate member is disposed between the radial flange and the end plate of the orbiting scroll member. The slider member is so connected to the end plate of orbiting scroll member by key and keyway connection that the relative rotation of them may be prevented while the relative movement of them in a radial direction being permitted. The slider plate member is also so connected to a member fixed to the inner surface of the compressor housing by key and keyway connection that the relative rotation of them may be prevented while the relative move- ment of them being permitted in a radial direction per- pendicular to the relative movement between the slider member and the orbiting scroll member. Those keys and keyways may be preferably so formed that the contact surface between mating key and keyway for receiving rotational torque is on a diameter of the slider member.
338766
Johnson Douglas S. Q.c.
Sanden Corporation
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