Independent cooling of cylinder head and block
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01P-003/02
F01P-007/14
출원번호
US-0948965
(2013-07-23)
등록번호
US-9032915
(2015-05-19)
우선권정보
DE-10 2012 213 341 (2012-07-30)
발명자
/ 주소
Tobergte, Michael
Pingen, Bert
Schumacher, Bernd
Mehring, Jan
출원인 / 주소
Ford Global Technologies, LLC
대리인 / 주소
Voutyras, Julia
인용정보
피인용 횟수 :
1인용 특허 :
2
초록▼
Various systems are provided for liquid-cooling of an internal combustion engine. In one example, an internal combustion engine includes a cylinder head, a cylinder block coupled to the cylinder head, a first return line fluidically coupled to the cylinder head and to a coolant valve and including a
Various systems are provided for liquid-cooling of an internal combustion engine. In one example, an internal combustion engine includes a cylinder head, a cylinder block coupled to the cylinder head, a first return line fluidically coupled to the cylinder head and to a coolant valve and including a heat exchanger configured to remove heat from coolant, a second return line fluidically coupled to the cylinder block and to the coolant valve, a bypass line branching off from the first return line and fluidically coupled to the coolant valve, and an originating supply line fluidically coupled to the cylinder head, the cylinder block, and the coolant valve, the originating supply line including a pump configured to supply coolant. The coolant valve is configured to control coolant flow through the coolant lines via rotational selection of one of a plurality of working positions.
대표청구항▼
1. A liquid-cooled internal combustion engine, comprising: at least one cylinder head including at least one integrated coolant jacket, the at least one integrated coolant jacket having at an inlet side a first supply opening and at an outlet side a first discharge opening, the first supply opening
1. A liquid-cooled internal combustion engine, comprising: at least one cylinder head including at least one integrated coolant jacket, the at least one integrated coolant jacket having at an inlet side a first supply opening and at an outlet side a first discharge opening, the first supply opening configured to receive coolant, the first discharge opening configured to discharge coolant;a cylinder block including at least one integrated coolant jacket, the at least one integrated coolant jacket having at an inlet side a second supply opening and at an outlet side a second discharge opening, the second supply opening configured to receive coolant, the second discharge opening configured to discharge coolant;a coolant valve;a first return line including a heat exchanger, the first return line connecting the first discharge opening to the coolant valve;a second return line connecting the second discharge opening to the coolant valve;a supply line including a pump configured to deliver coolant to the first supply opening, the second supply opening, and the integrated coolant jackets, the supply line branching off from the coolant valve; anda bypass line branching off from the first return line upstream of the heat exchanger, the bypass line leading to the coolant valve; wherein the coolant valve has a control drum rotatable about a longitudinal axis between working positions including a first working position and a second working position;wherein the first working position separates the first return line from the supply line, and connects the second return line and the bypass line to the supply line,wherein the second working position separates the bypass line from the supply line, and connects the first return line and the second return line to the supply line;wherein the control drum is driven by a stepper motor configured to rotate the control drum between working positions by a predefinable angle corresponding to at least one step of predeterminable step size, andwherein the rotatable control drum in a fourth working position separates the bypass line, the first return line, and the second return line from the supply line. 2. The liquid-cooled internal combustion engine of claim 1, wherein the rotatable control drum in a third working position connects the bypass line, the first return line, and the second return line to the supply line. 3. The liquid-cooled internal combustion engine of claim 1, wherein the rotatable control drum in a fifth working position connects the bypass line to the supply line, and separates the first return line and the second return line from the supply line. 4. The liquid-cooled internal combustion engine of claim 1, wherein the rotatable control drum in a sixth working position separates the second return line from the supply line, and connects the first return line and the bypass line to the supply line. 5. The liquid-cooled internal combustion engine of claim 1, wherein the rotatable control drum in a seventh working position connects the first return line to the supply line, and separates the second return line and the bypass line from the supply line. 6. The liquid-cooled internal combustion engine of claim 1, further comprising a coolant-operated heater. 7. The liquid-cooled internal combustion engine of claim 1, wherein the coolant valve comprises a housing in which the control drum is rotatably mounted, the housing including connection openings for the first return line, the second return line, the bypass line, and the supply line. 8. The liquid-cooled internal combustion engine of claim 1, wherein the control drum is adjusted and controlled in a predefinable cycle via the stepper motor; andwherein the predefinable cycle comprises a sequence of working positions of the control drum including the first working position and the second working position, each working position having corresponding residence times of the control drum. 9. The liquid-cooled internal combustion engine of claim 8, wherein the cycle is predefined as a function of one or more of a cylinder head temperature, a cylinder block temperature, and a coolant temperature. 10. The liquid-cooled internal combustion engine of claim 8, wherein the sequence of working positions is traversed linearly such that rotation of the control drum is minimized. 11. An internal combustion engine, comprising: a cylinder head;a cylinder block coupled to the cylinder head;a first return line fluidically coupled to the cylinder head and to a coolant valve, the first return line including a heat exchanger configured to remove heat from coolant;a second return line fluidically coupled to the cylinder block and to the coolant valve;a bypass line branching off from the first return line, the bypass line fluidically coupled to the coolant valve; andan originating supply line fluidically coupled to the cylinder head, the cylinder block, and the coolant valve, the originating supply line including a pump configured to supply coolant;the coolant valve configured to control coolant flow through the first return line, the second return line, the bypass line, and the originating supply line via rotational selection of one of a plurality of working positions, the plurality of working positions including a position in which the first return line, second return line, and bypass line are blocked from the originating supply line. 12. The internal combustion engine of claim 11, wherein the coolant valve includes a cylindrical body having a plurality of columnar regions each defining one of the plurality of working positions, each of the plurality of columnar regions including at least one port configured to block or allow coolant flow. 13. The internal combustion engine of claim 12, wherein the cylindrical body is positioned in a cylindrical block having an external surface including at least one connection opening fluidically coupled to one of the first return line, the second return line, the bypass line, and the originating supply line. 14. The internal combustion engine of claim 11, wherein the coolant valve has a disk-shaped body. 15. The internal combustion engine of claim 11, further comprising an actuator operatively coupled to the coolant valve, the actuator configured to drive rotational selection of one of the plurality of working positions. 16. The internal combustion engine of claim 15, wherein the actuator is a stepper motor. 17. The internal combustion engine of claim 11, wherein the plurality of working positions includes: a first working position separating the first return line from the originating supply line, and connecting the second return line and the bypass line to the supply line;a second working position separating the bypass line from the originating supply line, and connecting the first return line and the second return line to the supply line;a third working position connecting the bypass line, the first return line, and the second return line to the originating supply line;a fourth working position separating the bypass line, the first return line, and the second return line from the originating supply line;a fifth working position connecting the bypass line to the originating supply line, and separating the first return line and the second return line from the originating supply line;a sixth working position separating the second return line from the originating supply line, and connecting the first return line and the bypass line to the originating supply line; anda seventh working position connecting the first return line to the originating supply line, and separating the second return line and the bypass line from the originating supply line. 18. The internal combustion engine of claim 17, wherein the fourth working position is selected at start-up of the internal combustion engine;wherein the first working position is selected following selection of the fourth working position if cooling of the cylinder block is desired;wherein the fifth working position is selected following selection of the fourth working position if cooling of the cylinder block is not desired;wherein the third working position is selected following selection of one of the first working position and the fifth working position if cooling of the cylinder block is desired;wherein the sixth working position is selected following selection of one of the first working position and the fifth working position if cooling of the cylinder block is not desired;wherein the second working position is selected following selection of one of the third working position and the sixth working position if cooling of the cylinder block is desired;wherein the seventh working position is selected following selection of one of the third working position and the sixth working position if cooling of the cylinder block is not desired; andwherein the plurality of working positions is traversed in a sequence such that rotation of the coolant valve is minimized, the sequence based on typical temperature changes of the cylinder head and the cylinder block for typical engine operation cycles. 19. A method, comprising: independently adjusting coolant flow to a cylinder head and block based on engine startup, engine running, and over-temperature conditions, via a rotary valve having three inlet lines and a single outlet line, the valve having at least seven distinct positions with different couplings among the inlet and outlet lines, wherein in one of the positions, all three inlet lines are blocked from the outlet line.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (2)
Lehmann Kai,DEX, Control device for the coolant and heating circulation circuit of an internal combustion engine.
Duvinage, Frank; Klingebiel, Matthias; Pfaff, Ruediger; Sass, Helko; Welte, Lothar, Method for operating an internal combustion engine, and motor vehicle.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.