Compressor including valve assembly
AssigneeEmerson Climate Technologies, Inc.
InventorROY J. DOEPKER
Life of this patent
Estimating the term…
Abstract
A compressor hub assembly may include a hub member, a valve retainer and a valve member. The hub member may include first and second portions. The first portion may define an annular hub wall for a compressor and may have a first inner diameter. The second portion may have a second inner diameter greater than the first inner diameter and may define a stepped region between the first and second portions. The valve retainer may be fixed to the hub member at an end of the second portion opposite the stepped region and may define a third inner diameter. The valve member may be located between the valve retainer in the stepped region and may have an outer diameter less than the second inner diameter and greater than the first and third inner diameters.
Claims21
A compressor comprising:
- a first scroll member including a first end plate having a first spiral wrap extending therefrom, said first end plate including a first annular wall surrounding a first region located radially within said first annular wall and a second region located radially within said first region and defining a recess, said first end plate further defining a discharge port and a first bypass port extending through said recess;
- a second scroll member supported relative to said first scroll member and including a second end plate having a second spiral wrap extending therefrom and meshingly engaged with said first spiral wrap to form a suction pocket, intermediate pockets, and a discharge pocket, said discharge port being in communication with said discharge pocket and said first bypass port being in communication with one of said intermediate pockets;
- a hub member secured to said first end plate and overlying an end surface defined by said second region, said hub member including a second annular wall defining a discharge passage in communication with said discharge port;
- and
- a valve member located between said end surface and said hub member and being displaceable between a closed position where said valve member prevents communication between said first bypass port and said discharge passage and an open position where said first bypass port is in communication with said discharge passage.
A compressor hub assembly comprising:
- a hub member including a first portion defining an annular hub wall for a compression member and having a first inner diameter, a second portion having a second inner diameter greater than the first inner diameter and defining a stepped region between said first and second portions;
- a valve retainer fixed to said hub member at an end of said second portion opposite said stepped region and defining a third inner diameter;
- and
- a valve member located between said valve retainer and said stepped region and having an outer diameter less than the second inner diameter and greater than the first and third inner diameters.
A method comprising:
- providing a valve member within a hub member, the hub member including a first portion defining an annular hub wall for a compressor and having a first inner diameter and a second portion having a second inner diameter greater than the first inner diameter, the first and second portions defining a stepped region therebetween with the valve member being located within the second portion;
- and
- securing a valve retainer to an end of the second portion of the hub member to retain the valve member between the stepped region and the valve retainer.
Dependencies are inferred from the claim text.