Title:
OLDHAM RING MECHANISM AND SCROLL TYPE FLUID MACHINE WITH OLDHAM RING MECHANISM
Document Type and Number:
Japanese Patent JPH04124401
Kind Code:
A
Abstract:
PURPOSE:To prevent partial contact between a cylindrical pin and a cylindrical hole, and abnormal wear and seizure caused by the partial contact by fixing the cylindrical pin with a ring on one fixing side member or/and a rotating side member, and engaging the cylindrical pin into slidably a circular hole which is provided on the other side. CONSTITUTION:A pair of fixing side keys 32 consist of a cylindrical pin and fixed on the outer peripheral surface of a ring 31. A pair of rotating side keys 33 consist of a cylindrical pin and fixed on the inner peripheral surface of the ring 31. A circular hole 34 where the rotating side keys 33 are slidably engaged is drilled in the boss 23 of a rotating scroll 2. A circular hole 36 where the fixing side keys 32 are slidably engaged are drilled in a projection 35 which extends upward from the upper surface of a frame 6. These cylindrical pins 33, 32 never reciprocate inclining in the circular holes 34, 36. As a result, partial contact is not caused between the cylindrical pins 33, 32 and the circular holes 34, 36. It is thus possible to prevent abnormal wear and seizure.
Inventors:
HIRANO TAKAHISA
ITOU YOSHIYASU
ITOU YOSHIYASU
Application Number:
JP24342490A
Publication Date:
April 24, 1992
Filing Date:
September 13, 1990
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F01C1/02; F01C17/06; F04C18/02; (IPC1-7): F01C1/02; F04C18/02
Attorney, Agent or Firm:
Toru Suganuma (2 outside)