Oil cooler for vehicle having bypass valve operated by temperature of working fluid
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G05D-023/00
F01M-005/00
F16K-031/00
F16H-057/04
출원번호
US-0864827
(2015-09-24)
등록번호
US-10047648
(2018-08-14)
우선권정보
KR-10-2014-0163763 (2014-11-21)
발명자
/ 주소
Kim, Jae Yeon
Kim, Joo Hyung
Lee, Ji Chul
출원인 / 주소
Hyundai Motor Company
대리인 / 주소
McDermott Will & Emery LLP
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
An oil cooler for a vehicle includes an inflow tank through which a working fluid flows in. An outflow tank is spaced apart from the inflow tank by a predetermined interval and has a discharge hole at one side which faces the inflow tank. A plurality of tubes connect the inflow tank with the outflow
An oil cooler for a vehicle includes an inflow tank through which a working fluid flows in. An outflow tank is spaced apart from the inflow tank by a predetermined interval and has a discharge hole at one side which faces the inflow tank. A plurality of tubes connect the inflow tank with the outflow tank longitudinally such that the working fluid flows therethrough. A bypass valve is integrally mounted at an outer side of the one end portion of the inflow tank and connected to an inner side of the inflow tank to bypass or flow the working fluid flowed therein into the inflow tank by selectively opening and closing according to a temperature of the working fluid. An outflow pipe has one end mounted to the discharge hole and another end thereof mounted to the bypass valve to connect the outflow tank with the bypass valve.
대표청구항▼
1. An oil cooler for a vehicle comprising: an inflow tank through which a working fluid flows in;an outflow tank spaced apart from the inflow tank by a predetermined interval and having a discharge hole at one side which faces the inflow tank;a plurality of tubes connecting the inflow tank with the
1. An oil cooler for a vehicle comprising: an inflow tank through which a working fluid flows in;an outflow tank spaced apart from the inflow tank by a predetermined interval and having a discharge hole at one side which faces the inflow tank;a plurality of tubes connecting the inflow tank with the outflow tank longitudinally such that the working fluid flows therethrough;a bypass valve integrally mounted to an outer side of one end of the inflow tank and connected to an inner side of the inflow tank to allow the working fluid bypassing or flowing into the inflow tank by opening or closing the bypass valve, respectively, according to a temperature of the working fluid; andan outflow pipe of which a first end is mounted to the discharge hole and a second end is mounted to the bypass valve to connect the outflow tank with the bypass valve to allow the working fluid contained inside the outflow tank to flow out through the bypass valve toward the inflow tank according to an operation of the bypass valve,wherein the bypass valve comprises: a valve housing integrally mounted at the outer side of the one end of the inflow tank and protruding from the one end of the inflow tank; anda control unit disposed inside the valve housing and controlling the working fluid to flow into the inflow tank or to bypass the inflow tank by performing expansion or contraction according to the temperature of the working fluid,the valve housing comprises: a first inflow hole formed at one side of the valve housing away from the inflow tank to mount an inflow port to the one side of the valve housing;a bypass hole formed in another side of the valve housing which is spaced apart from the first inflow hole to mount a bypass port thereto;a second inflow hole facing the first inflow hole at one surface which contacts the inflow tank and communicates with the inner side of the inflow tank; anda connecting hole spaced apart from the second inflow hole at a protruding part protruding from the one end of the inflow tank such that the second end of the outflow pipe is connected thereto,wherein the control unit comprises: a sliding member of which a first end is open and a mounting part is formed at a center of a second end, at least one first opening hole is formed on one side corresponding to the first inflow hole and the bypass hole in a length direction, and at least one second opening hole is formed on another side corresponding to the second inflow hole and the connecting hole in the length direction, and which is slidably inserted inside the valve housing;a fixing rod having one end fixed to the fixing groove; anda deformable member inserted into the sliding member and moving forwardly or backwardly on the fixing rod by extending or contracting, respectively, according to the temperature of the working fluid to move the sliding member selectively forward and backward,wherein when the deformable member deforms, the fixing rod ascends and maintains the bypass hole and the connection hole, and the first and second opening holes formed at an upper side of the sliding member communicate with the first and second inflow holes, respectively. 2. The oil cooler for a vehicle of claim 1, wherein the inflow tank and the outflow tank have the plurality of tubes therebetween, and the inflow tank and the outflow tank are fixed to a side plate which connects upper and lower ends of the inflow tank with upper and lower ends of the outflow tank in a state of being disposed apart from each other. 3. The oil cooler for a vehicle of claim 1, wherein the inflow tank has a length shorter than that of the outflow tank. 4. The oil cooler of claim 1, wherein the outflow pipe has a cylindrical shape and is connected to the bypass valve such that the second end thereof contacts the first end of the inflow tank. 5. The oil cooler of claim 1, wherein the working fluid is transmission oil introduced from a transmission. 6. The oil cooler of claim 1, wherein the valve housing has a mounting space in which the first and second inflow holes, the bypass hole, and the connecting hole communicate therewith. 7. The oil cooler of claim 1, wherein the control unit further comprises: an end cap having a fixing groove at a center of the end cap, the end cap fixed to a mounting hole of the valve housing to block the mounting hole;anda first elastic member interposed between the valve housing and the sliding member and compressed or pulled to provide elastic force when the sliding member moves. 8. The oil cooler of claim 7, wherein the at least one first opening hole and the at least one second opening hole are formed at the upper side and a lower side of the sliding member, respectively, andthe first opening hole at the upper side of the sliding member has an area greater than that of the second opening hole at the upper side. 9. The oil cooler for vehicle of claim 7, wherein when the deformable member is at an initial position of the deformable member, the first opening hole at upper and lower sides of the sliding member communicates with the first inflow hole and the bypass hole, respectively, the second opening hole formed at the upper side is disposed below the second inflow hole, and the second opening hole positioned at the lower side communicates with the connecting hole. 10. The oil cooler for vehicle of claim 7, wherein the sliding member and the deformable member are fixedly connected through a fixing ring which is mounted between the mounting part and the deformable member below the deformable member. 11. The oil cooler for vehicle of claim 7, wherein the bypass valve further comprises a seal ring mounted between the valve housing and the end cap, the seal ring preventing the working fluid flowing into the valve housing from leaking out from the valve housing. 12. The oil cooler for vehicle of claim 7, wherein the end cap is fixed to the valve housing through a mounting ring that is fixedly mounted to an inner circumferential surface of mounting hole. 13. The oil cooler for vehicle of claim 12, wherein the mounting ring is fixedly mounted in a ring groove which is formed along the inner circumferential surface of the mounting hole. 14. The oil cooler for vehicle of claim 7, wherein the sliding member has at least one relief hole that is spaced apart from the mounting part at the second end in which the mounting part is formed and that is spaced apart from each other at a predetermined angle in a circumferential direction around the mounting part. 15. The oil cooler for vehicle of claim 14, wherein the bypass valve further comprises a pressure control disposed between the sliding member and the deformable member and selectively opening and closing the at least one relief hole when a differential pressure is generated by the working fluid flowing inside the valve housing. 16. The oil cooler for vehicle of claim 15, wherein the pressure control unit comprises: an opening and closing member that is disposed inside the second end of the sliding member to correspond to the at least one relief hole, and that has a disk shape having a penetration hole formed at a center of the opening and closing member to correspond to the mounting part; anda second elastic member that is interposed between the opening and closing member and the deformable member inside the sliding member, and applies elastic force to the opening and closing member. 17. The oil cooler for vehicle of claim 16, wherein the opening and closing member includes a protrusion protruding toward the second elastic member from an inner circumferential surface of the penetration hole.
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