Internal combustion engine with a lubrication system and method for producing an internal combustion engine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01M-001/02
F01M-011/02
출원번호
US-0648945
(2012-10-10)
등록번호
US-9822678
(2017-11-21)
우선권정보
DE-10 2011 084 597 (2011-10-17)
발명자
/ 주소
Steiner, Bernd
Lorenz, Thomas
Mehring, Jan
출원인 / 주소
Ford Global Technologies, LLC
대리인 / 주소
Voutyras, Julia
인용정보
피인용 횟수 :
0인용 특허 :
4
초록▼
A lubrication system in an internal combustion engine is provided. The lubrication system includes a crankshaft bearing supporting a crankshaft, a supply line including an outlet flowing oil to the crankshaft bearing and an inlet receiving oil from an oil gallery, and thermal insulation at least par
A lubrication system in an internal combustion engine is provided. The lubrication system includes a crankshaft bearing supporting a crankshaft, a supply line including an outlet flowing oil to the crankshaft bearing and an inlet receiving oil from an oil gallery, and thermal insulation at least partially surrounding at least a portion of an inner wall of the supply line and/or the oil gallery.
대표청구항▼
1. An internal combustion engine comprising: a cylinder head;a cylinder block connected to the cylinder head, the cylinder block including an upper crankcase portion receiving a crankshaft and a bearing; andan oil circuit including oil-carrying lines supplying the bearing with oil, the oil-carrying
1. An internal combustion engine comprising: a cylinder head;a cylinder block connected to the cylinder head, the cylinder block including an upper crankcase portion receiving a crankshaft and a bearing; andan oil circuit including oil-carrying lines supplying the bearing with oil, the oil-carrying lines including an oil gallery connected to a supply line and a pump, the supply line flowing oil to the bearing, at least a portion of an inner wall of the supply line including thermal insulation having shape memory material activated to form a shape lining the inner wall. 2. The internal combustion engine of claim 1, where the thermal insulation includes a polymeric material. 3. The internal combustion engine of claim 1, where the thermal insulation includes an oxide layer. 4. The internal combustion engine of claim 1, where the thermal insulation includes a composite material. 5. The internal combustion engine of claim 1, where the oil gallery includes at least a portion having thermal insulation. 6. The internal combustion engine of claim 1, further comprising a second bearing and a second supply line flowing oil to the second bearing coupled to the oil gallery. 7. The internal combustion engine of claim 1, further comprising a heating apparatus included in the oil circuit, where inner walls of oil-carrying lines extending from the heating apparatus to the bearing include thermal insulation, at least in sections. 8. The internal combustion engine of claim 1, where at least a portion of an inner wall of at least one of the oil-carrying lines is integrated in the cylinder block and is lined, at least in sections, with a thermal insulation. 9. The internal combustion engine of claim 1, where at least one of the oil-carrying lines is formed, at least in sections, fully from the thermal insulation external to the cylinder head and cylinder block. 10. A method for producing an internal combustion engine comprising: constructing a cylinder block having an upper crankcase portion and including a holder receiving a crankshaft, the cylinder block including an oil gallery and a supply line in fluidic communication with the oil gallery and the holder; andforming thermal insulation on an inner wall of at least one of the supply line and the oil gallery;where forming thermal insulation includes producing a hose from a shape memory material, introducing the hose into at least one of the oil gallery and the supply line, and activating the shape memory material to form the thermal insulation. 11. The method of claim 10, where constructing the cylinder block includes casting a cylinder block blank, the cylinder block blank being reworked to form the cylinder block. 12. The method of claim 11, where at least one of the oil gallery and the supply line are jointly formed with the cylinder block via casting of the cylinder block blank. 13. The method of claim 10, wherein forming the thermal insulation includes introducing a prefabricated sleeve into at least one of the oil gallery and the supply line. 14. The method of claim 10, where forming thermal insulation includes subjecting the inner wall to a surface treatment. 15. A lubrication system in an engine comprising: a crankshaft bearing supporting a crankshaft;a supply line including an outlet flowing oil to the crankshaft bearing and an inlet receiving oil from an oil gallery; andthermal insulation at least partially surrounding an inner wall of the supply line and the oil gallery, the thermal insulation having a temperature-activated shape memory material to form a shape lining the inner wall. 16. The lubrication system of claim 15, where the thermal insulation includes an oxide layer. 17. The lubrication system of claim 15, where the thermal insulation includes at least one of a polymeric material and a composite material. 18. The lubrication system of claim 15, where the supply line and the oil gallery are integrated into a cylinder block having a bearing cap receiving the crankshaft bearing. 19. The lubrication system of claim 15, wherein the shape memory material includes at least one of NiTi (nitinol), Fe—Pt, Cu—Al—Ni, Fe—Pd, Fe—Ni, Cu—Zn—Al, CuAlMn, and Ce-TZP.
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