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US 5,342,185 AGranted
Muffler plate for scroll machine
AssigneeCopeland Corporation
InventorGary J. Anderson
Life of this patent
Estimating the term…
Abstract
A scroll machine has a shell and a muffler plate which defines a muffler chamber and a main chamber. The muffler plate has a face for engaging a seal which is disposed at an interface between the muffler chamber and the main chamber. The muffler plate has a structurally advantageous configuration incorporating a frusto-conical portion and a tubular portion, which reduces distortion of the face and thereby reduces leakage between the muffler and main chambers.
Claims20
A scroll machine, comprising:
- a hermetic shell;
- a first scroll member disposed in said shell and having a first spiral wrap;
- a second scroll member disposed in said shell and having a second spiral wrap, said spiral wraps being mutually intermeshed;
- means for causing said scroll members to orbit with respect to one another, whereby said wraps create at least one enclosed space of progressively changing volume between a suction pressure region and a discharge pressure region;
- a muffler plate having a frusto-conical portion and defining a muffler chamber and a main chamber in said shell each being at a different pressure during normal operation, said muffler plate having a tubular portion defining a face directed toward one of said scroll members;
- and
- a seal disposed between said face and said one of said scroll members, said frusto-conical portion and said tubular portion of said muffler plate reducing distortion of said face and thereby reducing fluid leakage between said muffler chamber and said main chamber.
4 more elements
A scroll machine comprising:
- a hermetic shell;
- a first scroll member disposed in said shell and having a first spiral wrap;
- a second scroll member disposed in said shell and having a second spiral wrap, said spiral wraps being mutually intermeshed;
- means for causing said scroll members to orbit with respect to one another, whereby said wraps create at least one enclosed space for moving an amount of working fluid between a suction pressure region and a discharge pressure region;
- means for mounting one of said scroll members for limited axial movement with respect to the other scroll member;
- a muffler plate defining a muffler chamber and a main chamber in said shell each being at a different pressure during normal operation, said muffler plate having a tubular portion defining a face directed axially toward said one of said scroll members;
- and
- a floating seal disposed axially between said face and said one of said scroll members, said tubular portion of said muffler plate reducing distortion of said face and thereby reducing fluid leakage between said muffler chamber and said main chamber.
5 more elements
A scroll machine, comprising:
- a hermetic shell having a first and second shell member;
- a first scroll member disposed in said shell and having a first spiral wrap;
- a second scroll member disposed in said shell and having a second spiral wrap, said spiral wraps being mutually intermeshed;
- means for causing said scroll members to orbit with respect to one another, whereby said wraps create at least one enclosed space for moving an amount of a working fluid between a suction pressure region and a discharge pressure region;
- a muffler plate defining a muffler chamber and a main chamber in said shell each being at a different pressure during normal operation, said muffler plate having a tubular portion defining a face directed toward one of said scroll members, said first and second shell members and said muffler plate being joined by a common weld;
- and
- a seal disposed between said face and said one of said scroll members, said tubular portion of said muffler plate reducing distortion of said face and thereby reducing fluid leakage between said muffler chamber and said main chamber.
4 more elements
Dependencies are inferred from the claim text.