IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0310821
(2002-12-06)
|
우선권정보 |
KR-0029929 (2002-05-29) |
발명자
/ 주소 |
- Cho, Sung-Hea
- Park, Sung-Yeon
|
출원인 / 주소 |
- Samsung Electronics Co., Ltd.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
5 |
초록
▼
A variable rotary compressor with a capacity being variable as desired includes a drive device generating a rotating force, a rotating shaft connected to the drive device at a first end thereof and rotated by the drive device, and a cylinder through which a second end of the rotating shaft passes. T
A variable rotary compressor with a capacity being variable as desired includes a drive device generating a rotating force, a rotating shaft connected to the drive device at a first end thereof and rotated by the drive device, and a cylinder through which a second end of the rotating shaft passes. Two or more compressing chambers are provided in the cylinder such that the two or more compressing chambers are sequentially arranged along an axial direction of the rotating shaft. Rollers are eccentrically installed on the rotating shaft such that the rollers are arranged, respectively, in the two or more compressing chambers. A one-way clutch is installed on the rotating shaft to selectively transmit the rotating force to at least one of the rollers in accordance with a rotating direction of the rotating shaft. During operation of the rotary compressor, only one of the rollers is selectively rotated.
대표청구항
▼
1. A rotary compressor having a drive device generating a rotating force, a rotating shaft connected to said drive device at a first end thereof and rotated by the rotating force of the drive device, and a cylinder through which a second end of the rotating shaft passes, comprising:two or more compr
1. A rotary compressor having a drive device generating a rotating force, a rotating shaft connected to said drive device at a first end thereof and rotated by the rotating force of the drive device, and a cylinder through which a second end of the rotating shaft passes, comprising:two or more compressing chambers provided in the cylinder such that the two or more compressing chambers are sequentially arranged along an axial direction of the rotating shaft; a plurality of rollers eccentrically installed on the rotating shaft such that the plurality of the rollers are arranged in the two or more compressing chambers, respectively; and a clutch installed on the rotating shaft and transmitting the rotating force of the rotating shaft to at least one of the plurality of rollers for varying a quantity of refrigerant discharged from the rotary compressor according to a rotating direction of the rotating shaft. 2. The rotary compressor according to claim 1, wherein the clutch is a one-way clutch transmitting the rotating force of the rotating shaft to a selected roller only when the rotating shaft is rotated in a predetermined rotating direction.3. The rotary compressor according to claim 2, further comprising:another one-way clutch installed on the rotating shaft to transmit the rotating force of the rotating shaft to at least another of the plurality of rollers, the other clutch transmitting the rotating force of the rotating shaft to another selected roller only when the rotating shaft is rotated in an opposite rotating direction. 4. The rotary compressor according to claim 2, wherein:the two or more compressing chambers comprise first and second compressing chambers; the plurality of rollers comprise first and second rollers set in the first and second compressing chambers, respectively; and the one-way clutch is installed inside at least one of the first and second rollers. 5. The rotary compressor according to claim 4, wherein the first roller is provided with the one-way clutch which exclusively transmits the rotating force of the rotating shaft to the first roller only when the rotating shaft is rotated in a first rotating direction.6. The rotary compressor according to claim 4, wherein:the first roller is provided with the one-way clutch which exclusively transmits the rotating force of the rotating shaft to the first roller only when the rotating shaft is rotated in a first rotating direction; and the second roller is provided with another one-way clutch which exclusively transmits the rotating force of the rotating shaft to the second roller only when the rotating shaft is rotated in a second rotating direction. 7. The rotary compressor according to claim 6, further comprising:first and second eccentric cams provided, respectively, between the rotating shaft and the first roller and between the rotating shaft and the second roller to eccentrically rotate the first and second rollers during the rotation of the rotating shaft. 8. The rotary compressor according to claim 6, wherein each of the one-way clutches comprises:a cylindrical clutch body; a plurality of roller-seating grooves formed on an inner surface of the cylindrical clutch body such that each of the plurality of roller-seating grooves is gradually deeper in a direction toward an outer circumferential surface the cylindrical clutch body; and a roller bearing seated in each of the plurality of roller-seating grooves. 9. The rotary compressor according to claim 4, wherein the one-way clutch comprises:a cylindrical clutch body; a plurality of roller-seating grooves formed on an inner surface of the cylindrical clutch body such that each of the plurality of roller-seating grooves is gradually deeper in a direction toward an outer circumferential surface the cylindrical clutch body; and a roller bearing seated in each of the plurality of roller-seating grooves. 10. The rotary compressor according to claim 2, wherein the one-way clutch comprises:a cylindrical clutch body; a plurality of roller-seating grooves formed on an inner surface of the cylindrical clutch body such that each of the plurality of roller-seating grooves is gradually deeper in a direction toward an outer circumferential surface the cylindrical clutch body; and a roller bearing seated in each of the plurality of roller-seating grooves. 11. A rotary compressor having a rotating shaft rotated by a rotational force and a cylinder through which an end of the rotating shaft passes, comprising:plural compressing chambers provided in the cylinder which are sequentially arranged in a direction extending along a length of the rotating shaft; plural rollers eccentrically provided on the rotating shaft such that one of the plural rollers is arranged in each of the plural compressing chambers; and a clutch installed on the rotating shaft and transmitting the rotating force of the rotating shaft to at least one of the plural rollers for varying a quantity of refrigerant discharged from the rotary compressor according to a rotating direction of the rotating shaft. 12. The rotary compressor according to claim 11, further comprising:first and second eccentric cams provided, respectively, between the rotating shaft and a first of the plural rollers and between the rotating shaft and a second of the plural rollers to eccentrically rotate each of the first and second rollers during the rotation of the rotating shaft. 13. The rotary compressor according to claim 11, wherein the clutch is a one-way clutch transmitting the rotating force of the rotating shaft to a selected roller and a compressing action of the selected roller is either provided or suppressed according to the rotating direction of the rotating shaft.14. The rotary compressor according to claim 13, further comprising:another one-way clutch provided on the rotating shaft to transmit the rotating force of the rotating shaft to another selected roller, the other one-way clutch transmitting the rotating force of the rotating shaft to the other selected roller and a compressing action of the other selected roller is provided, if the compressing action of the selected roller is suppressed, or a compressing action of the other selected roller is suppressed, if the compressing action of the selected roller is provided. 15. The rotary compressor according to claim 14, wherein each of the one-way clutches comprise:a clutch body; a plurality of roller-seating grooves formed on an inner surface of the clutch body; and a roller bearing seated in each of the plurality of roller-seating grooves. 16. The rotary compressor according to claim 15, wherein each of the plurality of roller-seating grooves is gradually deeper in a direction toward an outer circumferential surface the clutch body and the clutch body is cylindrical.17. A rotary compressor having a rotating shaft, comprising:plural compressing chambers; and first and second clutches to cause one or more of the plural compressing chambers to compress during only a first rotation direction of the rotating shaft, and at least one remaining compressing chamber of the plural compressing chambers to compress during only a second rotation direction of the rotating shaft, respectively, such that a compression capacity of the rotary compressor is variable according to the rotation direction of the rotating shaft.
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