Patent ID: 6179592
Filing Date: 2001-01-30
Classification: F04C

Abstract:
A scroll compressor comprising:a first scroll member having a base and a generally spiral wrap extending from said base;a second scroll member having a base and a generally spiral wrap extending from said base, said wraps of said first and second scroll members interfitting to define compression chambers, said second scroll member having a downwardly extending boss with a bore, and a slider block received in said bore in said boss;said slider block having an internal bore, said slider block being connected to move with said second scroll member;a drive shaft for driving said second scroll member to orbit relative to said first scroll member, said drive shaft including an eccentric pin extending upwardly into said slider block bore, and said eccentric pin selectively driving said slider block, and thus said second scroll member to orbit relative to said first scroll member; andsaid drive shaft and said slider block being configured to have structure to cause movement such that when said shaft rotates in a first direction, a flat surface on said eccentric pin engages a flat surface on said slider block and said wraps of said first and second scroll members are brought into contact with each other to define said compression chambers, and wherein when said shaft rotates in a second direction opposed to said first direction, said flat surfaces move out of engagement, and said slider block is caused to pivot relative to said eccentric pin about a pivot point.