IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0657311
(2003-09-08)
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발명자
/ 주소 |
- Haller, David K.
- Skinner, Robin G.
- Haney, Richard C.
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출원인 / 주소 |
- Tecumseh Products Company
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
7 인용 특허 :
91 |
초록
▼
A scroll compressor having crankcase with an integral shroud. The shroud includes an aperture and defines a partial enclosure. A counterweight mounted on the shaft of the compressor is disposed within the partial enclosure defined by the shroud. The aperture is positioned above the shaft and the shr
A scroll compressor having crankcase with an integral shroud. The shroud includes an aperture and defines a partial enclosure. A counterweight mounted on the shaft of the compressor is disposed within the partial enclosure defined by the shroud. The aperture is positioned above the shaft and the shroud shields an oil sump within the compressor housing from the fanning action of the counterweight. A scroll compressor having a baffle extending from an inlet to the compressor housing to an inlet of the working space of the compressor is also provided. The baffle is secured to the crankcase of the compressor and may include an opening that functions as an oil stripper.
대표청구항
▼
1. A compressor assembly comprising:a housing defining an interior plenum and having an inlet opening; a stationary scroll member fixed within said housing; an orbiting scroll member disposed within said housing and engaged with said stationary scroll member; an oil sump disposed within said interio
1. A compressor assembly comprising:a housing defining an interior plenum and having an inlet opening; a stationary scroll member fixed within said housing; an orbiting scroll member disposed within said housing and engaged with said stationary scroll member; an oil sump disposed within said interior plenum; a shaft rotatable about a shaft axis, said shaft operably coupled with said orbiting scroll member; a motor operably coupled with said shaft; a crankcase fixed within said housing and disposed between said orbiting scroll member and said motor, said crankcase having a thrust surface engageable with said orbiting scroll member and defining a first opening, said crankcase including a bearing support portion defining a second opening, said shaft freely extending through said first opening and extending through and bearingly supported at said second opening; said crankcase having a shield portion extending from proximate said first opening to proximate said second opening and defining a partial enclosure for said shaft between said first opening and said second opening, said shield portion defining an aperture providing fluid communication between said interior plenum and said partial enclosure, said aperture axially extending from proximate said first opening to proximate said second opening, said shield portion circumferentially extending about said shaft through an arc of at least 180 degrees and spaced radially outwardly of said shaft; a sheet-like baffle member secured to said crankcase and positioned proximate said inlet opening; wherein said crankcase includes a plurality of legs extending from proximate said thrust surface substantially parallel to said shaft axis and having distal ends engageable with said motor; and said baffle member being secured to at least one of said legs. 2. The compressor assembly of claim 1 further comprising a counterweight disposed on said shaft between said first and second openings within said partial enclosure.3. The compressor assembly of claim 1 wherein said baffle member is positioned radially outwardly of said aperture.4. The compressor assembly of claim 1 wherein said shield portion circumferentially extends about said shaft through an arc of at least about 270 degrees.5. A compressor assembly comprising:a housing defining an interior plenum and having an inlet opening; a stationary scroll member fixed within said housing; an orbiting scroll member disposed within said housing and engaged with said stationary scroll member; an oil sump disposed within said interior plenum; a shaft rotatable about a shaft axis, said shaft operably coupled with said orbiting scroll member; a motor operably coupled with said shaft; a crankcase fixed within said housing and disposed between said orbiting scroll member and said motor, said crankcase having a thrust surface engageable with said orbiting scroll member and defining a first opening, said crankcase including a bearing support portion defining a second opening, said shaft freely extending through said first opening and extending through and bearingly supported at said second opening; said crankcase having a shield portion extending from proximate said first opening to proximate said second opening and defining a partial enclosure for said shaft between said first opening and said second opening, said shield portion defining an aperture providing fluid communication between said interior plenum and said partial enclosure, said aperture axially extending from proximate said first opening to proximate said second opening, said shield portion circumferentially extending about said shaft through an arc of at least 180 degrees and spaced radially outwardly of said shaft; a sheet-like baffle member secured to said crankcase and positioned proximate said inlet opening; and wherein said crankcase has an outer perimeter which defines a recess providing access to a working space between said fixed and orbiting scroll members, said baffle member positioned adjacent said recess. 6. A compressor assembly comprising:a housing defining an interior plenum and having an inlet opening; a stationary scroll member fixed within said housing; an orbiting scroll member disposed within said housing and engaged with said stationary scroll member; an oil sump disposed within said interior plenum; a shaft rotatable about a shaft axis, said shaft operably coupled with said orbiting scroll member, a motor operably coupled with said shaft; a crankcase fixed within said housing and disposed between said orbiting scroll member and said motor, said crankcase having a thrust surface engageable with said orbiting scroll member and defining a first opening, said crankcase including a bearing support portion defining a second opening, said shaft freely extending through said first opening and extending through and bearingly supported at said second opening; said crankcase having a shield portion extending from proximate said first opening to proximate said second opening and defining a partial enclosure for said shaft between said first opening and said second opening, said shield portion defining an aperture positioned at a height above said shaft axis and providing fluid communication between said interior plenum and said partial enclosure, said aperture axially extending from proximate said first opening to proximate said second opening, said shield portion circumferentially extending about said shaft through an arc of at least 180 degrees and spaced radially outwardly of said shaft; and a sheet-like baffle member secured to said crankcase and positioned proximate said inlet opening. 7. A compressor assembly comprising:a housing defining an interior plenum; a stationary scroll member fixed within said housing; an orbiting scroll member disposed within said housing and engaged with said stationary scroll member; a shaft rotatable about a shaft axis, said shaft operably coupled with said orbiting scroll member; a motor operably coupled with said shaft; a crankcase disposed between said motor and said orbiting scroll member, said crankcase having a thrust surface engageable with said orbiting scroll member and defining a first opening, said crankcase including a bearing support portion defining a second opening, said shaft extending freely through said first opening and extending through and bearingly supported at said second opening, said crankcase including a plurality of legs extending from proximate said thrust surface in a direction substantially parallel to said shaft axis and having distal ends engageable with said motor, said crankcase having a shield portion extending from proximate said first opening to proximate said second opening and defining a partial enclosure for said shaft between said first opening and said second opening, said shield portion defining an aperture providing fluid communication between said interior plenum and said partial enclosure, said aperture axially extending from proximate said first opening to proximate said second opening, said shield portion circumferentially extending about said shaft along an arc of at least 180 degrees and spaced radially outwardly of said shaft and radially inwardly of said plurality of legs; and a baffle member secured to said crankcase and at least partially disposed radially between said shield portion and said legs. 8. The compressor assembly of claim 7 further comprising a counterweight disposed on said shaft between said first and second openings within said partial enclosure.9. The compressor assembly of claim 7 wherein said baffle member is positioned radially outwardly of said aperture.10. The compressor assembly of claim 7 wherein said crankcase has an outer perimeter which defines a recess providing access to a working space between said fixed and orbiting scroll members, said baffle member positioned adjacent said recess.11. The compressor assembly of claim 7 wherein said aperture is positioned at a height above said shaft axis.12. The compressor assembly of claim 7 wherein said shield portion circumferentially extends about said shaft through an arc of at least about 270 degrees.13. A compressor assembly comprising:a housing defining an interior plenum and having an inlet opening; a stationary scroll member fixed within said housing; an orbiting scroll member disposed within said housing and engaged with said stationary scroll member; an oil sump disposed within said interior plenum; a shaft rotatable about a shaft axis, said shaft operably coupled with said orbiting scroll member; a motor operably coupled with said shaft; a crankcase fixed within said housing and disposed between said orbiting scroll member and said motor, said crankcase having a thrust surface engageable with said orbiting scroll member and defining a first opening, said crankcase including a bearing support portion defining a second opening, said shaft freely extending through said first opening and extending through and bearingly supported at said second opening; said crankcase having a shield portion extending from proximate said first opening to proximate said second opening and defining a partial enclosure for said shaft between said first opening and said second opening, said shield portion defining an aperture providing fluid communication between said interior plenum and said partial enclosure, said aperture positioned at a height above said shaft axis, said aperture substantially aligned with said inlet opening and axially extending from proximate said first opening to proximate said second opening, said shield portion circumferentially extending about said shaft through an arc of at least 180 degrees and spaced radially outwardly of said shaft; and a baffle member secured to said crankcase over said aperture and positioned proximate said inlet opening. 14. A compressor assembly comprising:a housing defining an interior plenum and having an inlet opening; a stationary scroll member fixed within said housing; an orbiting scroll member disposed within said housing and engaged with said stationary scroll member; an oil sump disposed within said interior plenum; a shaft rotatable about a shaft axis, said shaft operably coupled with said orbiting scroll member; a motor operably coupled with said shaft; a crankcase fixed within said housing and disposed between said orbiting scroll member and said motor, said crankcase having a thrust surface engageable with said orbiting scroll member and defining a first opening, said crankcase including a bearing support portion defining a second opening, said shaft freely extending through said first opening and extending through and bearingly supported at said second opening; said crankcase having a shield portion extending from proximate said first opening to proximate said second opening and defining a partial enclosure for said shaft between said first opening and said second opening, said shield portion defining an aperture providing fluid communication between said interior plenum and said partial enclosure, said aperture positioned at a height above said shaft axis, said aperture axially extending from proximate said first opening to proximate said second opening, said shield portion circumferentially extending about said shaft through an arc of at least 180 degrees and spaced radially outwardly of said shaft; and a baffle member secured to said crankcase and positioned proximate said inlet opening, at least a portion of said baffle member positioned within said aperture.
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