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US 2007/0224070 A1Published application
Scroll compressor with stop structure to prevent slider block movement
AssigneeScroll Technologies
InventorZili Sun
Life of this patent
Estimating the term…
Abstract
A scroll compressor has a stop on its eccentric pin to selectively engage a notch in a slider block, and prevent the slider block from moving upwardly and contacting a rear surface of the orbiting scroll. The present invention prevents this unwanted contact, and the resultant wear.
Claims11
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 its base, said spiral wraps of said first and second scroll members interfitting to define compression chambers;
- a driveshaft and a motor for rotating said driveshaft, said driveshaft having an eccentric pin extending from one end of said driveshaft;
- said second scroll member being caused to orbit by said eccentric pin, and said second scroll member having a boss extending in an opposed direction from said base compared to said spiral wrap, said boss including an opening receiving a slider block and said eccentric pin with said slider block being intermediate said eccentric pin and said boss, and said boss having an upper surface defining a rear surface of said base of said second scroll member;
- stop structure on said eccentric pin for selectively contacting a stop surface on said slider block and preventing movement of said slider block toward said rear surface, said stop structure on said eccentric pin being spaced toward said second scroll member relative to said stop surface on said slider block, and said stop structure being out of contact with said stop surface in most cases;
- and
- said slider block being positioned vertically beneath said stop structure on said eccentric pin such that said slider block will fall vertically out of contact with said stop surface.
4 more elements
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 its base, said spiral wraps of said first and second scroll members interfitting to define compression chambers;
- a driveshaft and a motor for rotating said driveshaft, said driveshaft having an eccentric pin extending from one end of said driveshaft;
- said second scroll member being caused to orbit by said eccentric pin, and said second scroll member having a boss extending in an opposed direction from said base compared to said spiral wrap, said boss including an opening receiving a slider block and said eccentric pin with said slider block being intermediate said eccentric pin and said boss, and said boss having an upper surface defining a rear surface of said base of said second scroll member;
- and
- stop structure on said eccentric pin for selectively contacting a stop surface on said slider block and preventing movement of said slider block toward said rear surface;
- and
- said stop includes a single stop extending beyond the nominal surface of said eccentric pin, and said stop surface in said slider block includes a notch in an extreme surface of said slider block which selectively contacts said stop.
5 more elements
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 its base, said spiral wraps of said first and second scroll members interfitting to define compression chambers;
- a driveshaft and a motor for rotating said driveshaft, said driveshaft having an eccentric pin extending from one end of said driveshaft;
- said second scroll member being caused to orbit by said eccentric pin, and said second scroll member having a boss extending in an opposed direction from said base compared to said spiral wrap, said boss including an opening receiving a slider block and said eccentric pin with said slider block being intermediate said eccentric pin and said boss, and said boss having an upper surface defining a rear surface of said base of said second scroll member, said eccentric pin has a drive flat surface which is selectively moved into engagement with a mating flat surface within a bore in said slider block;
- and
- a stop on said eccentric pin for selectively contacting a notch on said slider block and preventing movement of said slider block toward said rear surface, said stop includes a single stop extending beyond a nominal surface of said eccentric pin.
3 more elements
(canceled)
Dependencies are inferred from the claim text.