Scroll compressor including deflection compensation for non-orbiting scroll
First Claim
Patent Images
1. A compressor comprising:
- a shell assembly;
a non-orbiting scroll member axially fixed relative to said shell assembly and including a first end plate, a first wrap extending from a first side of said first end plate, a discharge passage and an auxiliary passage, said first end plate and said shell assembly cooperating to define a chamber in fluid communication with said auxiliary passage; and
an orbiting scroll member including a second end plate, a second wrap extending from said second end plate and meshingly engaged with said first wrap to form a suction pocket in fluid communication with a suction pressure region of the compressor, intermediate compression pockets, and a discharge pocket in fluid communication with said discharge passage, said auxiliary passage being in fluid communication with one of said intermediate compression pockets to provide pressurized fluid to said chamber to deflect said first end plate and said first wrap axially toward said orbiting scroll member.
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Abstract
A scroll compressor an orbiting scroll member including a second end plate, a second wrap extending from the second end plate and meshingly engaged with the first wrap to form a suction pocket in fluid communication with a suction pressure region of the compressor, intermediate compression pockets, and a discharge pocket in fluid communication with the discharge passage. An auxiliary passage is in fluid communication with one of the intermediate compression pockets to provide pressurized fluid to the chamber to deflect the first end plate and the first wrap axially toward the orbiting scroll member.
36 Citations
20 Claims
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1. A compressor comprising:
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a shell assembly; a non-orbiting scroll member axially fixed relative to said shell assembly and including a first end plate, a first wrap extending from a first side of said first end plate, a discharge passage and an auxiliary passage, said first end plate and said shell assembly cooperating to define a chamber in fluid communication with said auxiliary passage; and an orbiting scroll member including a second end plate, a second wrap extending from said second end plate and meshingly engaged with said first wrap to form a suction pocket in fluid communication with a suction pressure region of the compressor, intermediate compression pockets, and a discharge pocket in fluid communication with said discharge passage, said auxiliary passage being in fluid communication with one of said intermediate compression pockets to provide pressurized fluid to said chamber to deflect said first end plate and said first wrap axially toward said orbiting scroll member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A compressor comprising:
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a shell assembly; a non-orbiting scroll member including a first end plate axially fixed relative to said shell assembly and sealingly engaged with said shell assembly at an outer perimeter region thereof, a first wrap extending from a first side of said first end plate, a discharge passage and an auxiliary passage, a second side of said first end plate opposite said first side and said shell assembly cooperating to define a chamber in fluid communication with said auxiliary passage, said chamber being defined from said discharge passage radially outward to said outer perimeter region; and an orbiting scroll member including a second end plate, a second wrap extending from said second end plate and meshingly engaged with said first wrap to form a suction pocket in fluid communication with a suction pressure region of the compressor, intermediate compression pockets, and a discharge pocket in fluid communication with said discharge passage, said auxiliary passage being in fluid communication with one of said intermediate compression pockets to provide pressurized fluid to said chamber to deflect said first end plate and said first wrap axially toward said orbiting scroll member. - View Dependent Claims (12, 13, 14, 15)
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16. A compressor comprising:
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a shell assembly; a non-orbiting scroll member axially fixed relative to said shell assembly and including a first end plate, a first wrap extending from a first side of said first end plate, a discharge passage and an auxiliary passage, said first end plate and said shell assembly cooperating to define a chamber in fluid communication with said auxiliary passage; an orbiting scroll member including a second end plate, a second wrap extending from said second end plate and meshingly engaged with said first wrap to form a suction pocket in fluid communication with a suction pressure region of the compressor, intermediate compression pockets, and a discharge pocket in fluid communication with said discharge passage, said auxiliary passage being in fluid communication with one of said intermediate compression pockets to provide pressurized fluid to said chamber to deflect said first end plate and said first wrap axially toward said orbiting scroll member; and a discharge fitting extending into said discharge passage in said non-orbiting scroll member and extending through said shell assembly to isolate said chamber from said discharge passage. - View Dependent Claims (17, 18, 19, 20)
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Specification