IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0866638
(2004-06-12)
|
우선권정보 |
DE-103 26 887(2003-06-14) |
발명자
/ 주소 |
- Br체hl,Reinhold
- Doll,Roland
- Weinert,Frank
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
9 |
초록
In a multistage oil pumping system for an oil supply system of a motor vehicle comprising at least two oil pumps arrange axially in side-by-side relationship, each of the oil pumps is connected to a separate drive so that the oil pumps can be operated independently of one another.
대표청구항
▼
What is claimed is: 1. A multistage oil pumping system for an oil supply system of a motor vehicle, comprising a pump housing (10) at least two oil pumps (12a, 12b, 12c) arranged axially side-by-side in said pump housing (10), at least two of said oil pumps (12a, 12b, 12 c) having a common discharg
What is claimed is: 1. A multistage oil pumping system for an oil supply system of a motor vehicle, comprising a pump housing (10) at least two oil pumps (12a, 12b, 12c) arranged axially side-by-side in said pump housing (10), at least two of said oil pumps (12a, 12b, 12 c) having a common discharge opening (19) and each of said oil pumps having its own separate drive (14a, 14b, 14c) so that the oil pumps can be operated independently of one another. 2. A multistage oil pumping system according to claim 1, wherein all oil pumps (12a, 12b, 12 c) have a common drive plane. 3. A multistage oil pumping system according to claim 1, wherein at least two of said oil pumps (12a, 12 b, 12c) have displaced drive planes. 4. A multistage oil pumping system according to claim 1, wherein said oil pumps (12a, 12b, 12 c) have at least one suction stage and one pressure stage. 5. A multistage oil pumping system according to claim 1, wherein said oil pumps consist of at least one of controllable pumps and constant volume pumps. 6. A multistage oil pumping system for an oil supply system of a motor vehicle, comprising a pump housing (10), at least two oil pumps (12a, 12b, 12c) arranged axially side-by-side in said pump housing (10), said oil pumps (12a, 12b, 12c) consisting of at least one of a ring gear pump, a spur gear pump and a wing cell pump and each of said oil pump having its own separate drive (14a, 14b, 14c) so that the oil pump can be operated independently of one another. 7. A multistage oil pump system according to claim 6, wherein all oil pumps (12a, 12b, 12c) have a common drive plane. 8. A multistage oil pump system according to claim 6, wherein at least two of said oil pumps (12a, 12b, 12c) have displaced drive planes. 9. A multistage oil pump system according to claim 6, wherein said oil pumps (12a, 12b, 12c) have at least one suction stage and one pressure stage. 10. A multistage oil pump system according to claim 6, wherein said oil pumps consist of at least one of controllable pumps and constant volume pumps. 11. A multistage oil pump system according to claim 6, wherein at least two of said oil pumps (12a, 12 b, 12c) have a common discharge opening (19).
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