Bearing of rotary compressor

Abstract

Abstract PURPOSE:To reduce the generation of noises by the striking of a valve to a valve seat sharply by forming them from austenite cast iron in which the maximum length of graphite crystallized is 0.45-1.4mm and the configuration thereof is of A, C or mixed type of A and C of ISO classification. CONSTITUTION:Main- and sub-bearings 2, 3 are formed from austenite cast iron in which the maximum length of graphite crystallized is 0.45-1.4mm and the configuration thereof is of A, C or mixed type of A and C of ISO classification. As a result, it is possible to provide the main- and sub-bearings 2, 3 which have sufficient tensile strength and hardness, of which SDC is higher than another made from perlite cast iron using perlite for the base, and which can remarkably reduce generation of noise by the striking of a valve 6 against a valve seat 5 caused by the vertical movement of valve 6 when it is incorporated in a rotary compressor. Furthermore, the bearings are superior in their sliding properties and have superior workability than the conventional cast irons.

Inventors

• 👤 Eiichiro Fujii
• 👤 藤井　栄一郎

Bibliographic Details