Cooling circuit of an internal combustion engine comprising a low-temperature radiator
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01P-007/16
F01P-007/14
F28D-001/00
출원번호
US-0542371
(2004-01-14)
등록번호
US-7406929
(2008-08-05)
우선권정보
DE-103 01 564(2003-01-16)
국제출원번호
PCT/EP04/000202
(2004-01-14)
§371/§102 date
20060510
(20060510)
국제공개번호
WO04/063543
(2004-07-29)
발명자
/ 주소
Hassdenteufel,Klaus
Rogg,Stefan
출원인 / 주소
BEHR GmbH & Co. KG
대리인 / 주소
Foley & Lardner LLP
인용정보
피인용 횟수 :
4인용 특허 :
5
초록▼
The invention relates to a cooling circuit of an internal combustion engine of motor vehicles, comprising a main cooling circuit that encompasses a section located upstream of the radiator, a main radiator, a radiator return path, a coolant pump, a main thermostat, and a bypass or short circuit whic
The invention relates to a cooling circuit of an internal combustion engine of motor vehicles, comprising a main cooling circuit that encompasses a section located upstream of the radiator, a main radiator, a radiator return path, a coolant pump, a main thermostat, and a bypass or short circuit which is disposed between the main thermostat and the coolant pump. Said cooling circuit further comprises a low-temperature circuit encompassing a low-temperature radiator, a low-temperature radiator return path, a valve unit, and an additional heat exchanger.
대표청구항▼
The invention claimed is: 1. A cooling circuit of an internal combustion engine of a motor vehicle having a main cooling circuit, comprising: a main radiator (5a), a section (3) located upstream of the radiator, a radiator return flow section (8), a coolant pump (10), a main thermostat (2) and a by
The invention claimed is: 1. A cooling circuit of an internal combustion engine of a motor vehicle having a main cooling circuit, comprising: a main radiator (5a), a section (3) located upstream of the radiator, a radiator return flow section (8), a coolant pump (10), a main thermostat (2) and a bypass or short circuit (4) between the main thermostat (2) and the coolant pump (10), and a low-temperature circuit, comprising a low-temperature radiator (5b), a low-temperature radiator return flow section (11), a valve unit, and an additional heat exchanger, wherein the low-temperature radiator (5b) is connected in parallel with the main radiator (5a); wherein the main thermostat (2) is arranged in the section (3) located upstream of the radiator; and wherein the valve unit is embodied as a mixing thermostat (14) with a first inlet, a second inlet, and one outlet, wherein the first inlet and the outlet are connected into the return flow section (11) of the low-temperature radiator (5b), and the second inlet is connected to the main thermostat (2). 2. The cooling circuit as claimed in claim 1, wherein the additional heat exchanger is embodied as a gear oil radiator (13). 3. The cooling circuit as claimed in claim 1, wherein a warming up thermostat (16) is connected between the second inlet and the main thermostat (2). 4. A cooling circuit of an internal combustion engine of a motor vehicle having a main cooling circuit, comprising: a main radiator (5a), a section (3) located upstream of the radiator, a radiator return flow section (8), a coolant pump (10), a main thermostat (2) and a bypass or short circuit (4) between the main thermostat (2) and the coolant pump (10), and a low-temperature circuit, comprising a low-temperature radiator (5b), a low-temperature radiator return flow section (11), a valve unit, and an additional heat exchanger, wherein the low-temperature radiator (5b) is connected in parallel with the main radiator (5a); wherein the main thermostat (2) is arranged in the section (3) located upstream of the radiator; and wherein the valve unit is embodied as a warming up thermostat (16) which is connected between the return flow section (11) of the low-temperature radiator (5b) and the bypass or short circuit (4). 5. A cooling circuit of an internal combustion engine of a motor vehicle having a main cooling circuit, comprising: a main radiator (5a), a section (3) located upstream of the radiator, a radiator return flow section (8), a coolant pump (10), a main thermostat (2) and a bypass or short circuit (4) between the main thermostat (2) and the coolant pump (10), and a low-temperature circuit, comprising a low-temperature radiator (5b), a low-temperature radiator return flow section (11), a valve unit, and an additional heat exchanger, wherein the low-temperature radiator (5b) is connected in parallel with the main radiator (5a); wherein the main thermostat (2) is arranged in the radiator return flow section (8); and wherein the valve unit is embodied as a mixing thermostat (4) with a first inlet, a second inlet, and one outlet, wherein the first inlet and the outlet are connected into the return flow section (11) of the low-temperature radiator (5b), and the second input is connected to the section (3) located upstream of the radiator. 6. The cooling circuit as claimed in claim 5, wherein a warming up thermostat (16) is connected between the section (3) located upstream of the radiator and the second inlet. 7. A cooling circuit of an internal combustion engine of a motor vehicle having a main cooling circuit, comprising: a main radiator (5a), a section (3) located upstream of the radiator, a radiator return flow section (8), a coolant pump (10), a main thermostat (2) and a bypass or short circuit (4) between the main thermostat (2) and the coolant pump (10), and a low-temperature circuit, comprising a low-temperature radiator (5b), a low-temperature radiator return flow section (11), a valve unit and an additional heat exchanger, wherein the low-temperature radiator (5b) is connected in parallel with the main radiator (5a); wherein the main thermostat (2) is arranged in the radiator return flow section (8); and wherein the valve unit is embodied as a warming up thermostat (16) which is connected into the return flow section (11) of the low-temperature radiator (5b). 8. A coolant radiator of a cooling circuit of an internal combustion engine of a motor vehicle, comprising: a pipe/rib block, a coolant inlet box (51, 62) with a coolant inlet (53, 63), and a collecting box (52, 64) with a coolant connection to the pipe/rib block, wherein the pipe/rib block has a main region (50a, 61a) and a low-temperature region (50b, 61b), and coolant outlets for a coolant main flow and a coolant partial flow; wherein the main region (50a, 61b) and the low-temperature region (50b, 61b) are connected in parallel; and wherein a dividing element (54, 66) which divides the pipe/rib block into the main region (50a, 61a) and the low-temperature region (50b, 61b), and divides the collecting box (52, 64) into a main chamber (55, 67) and a secondary chamber (56, 68) is arranged in the collecting box (52, 64). 9. The coolant radiator as claimed in claim 8, wherein the dividing element is embodied as a sealed dividing wall (54, 66). 10. The coolant radiator as claimed in claim 8, wherein the dividing element is embodied as an unsealed dividing wall with a throttle point. 11. The coolant radiator as claimed in claim 8, wherein the dividing element is embodied as a dividing wall with a valve. 12. The coolant radiator as claimed in claim 8, wherein an additional heat exchanger is integrated into, or with, the collecting box (52, 64), and a partial stream of coolant can flow through it. 13. The coolant radiator as claimed in claim 8, wherein an open longitudinal dividing wall (57) is arranged in the main chamber (55) and forms a mixing chamber (58) in which the additional heat exchanger (59) is arranged. 14. The coolant radiator as claimed in claim 13, wherein a mixing thermostat (60), which has a coolant connection to the secondary chamber (56) and the mixing chamber (58) and can be connected to the cooling circuit, is integrated into the mixing chamber (58). 15. The coolant radiator as claimed in claim 12, wherein the additional heat exchanger (72) is attached to the collecting box (64) by a mounting plate (71). 16. The coolant radiator as claimed in claim 15, wherein a mixing chamber (69) is arranged in the region of the secondary chamber (68) and a mixing thermostat (70), wherein the mixing thermostat has a coolant connection to the secondary chamber (68) and to the mixing chamber (69) and can be connected to the cooling circuit is integrated into the mixing chamber (69), and wherein the additional heat exchanger (72) has a coolant connection to the mixing chamber (69) and the main chamber (67). 17. The coolant radiator as claimed in claim 12, wherein the additional heat exchanger is a gear oil radiator (59, 72). 18. A coolant radiator of a cooling circuit of an internal combustion engine of a motor vehicle, comprising: a pipe/rib block, a coolant inlet box (51, 62) with a coolant inlet (53, 63), and a collecting box (52, 64) with a coolant connection to the pipe/rib block, wherein the pipe/rib block has a main region (50a, 61a) and a low-temperature region (50b, 61b) and coolant outlets for a coolant main flow and a coolant partial flow; wherein the main region (50a, 61b) and the low-temperature region (50b, 61a) are connected in parallel; and wherein a partial stream of coolant, which makes up approximately 4% to 15% of an entire stream of coolant, can flow through the low-temperature region (50b, 61b).
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이 특허에 인용된 특허 (5)
Sonnemann Guenter,DEX ; Sierakowski Mirko,DEX ; Junghans Rainer,DEX, Coolant circuit for motor vehicles.
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