IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0401784
(2003-03-31)
|
우선권정보 |
JP-0132566 (2002-05-08) |
§371/§102 date |
20030203
(20030203)
|
발명자
/ 주소 |
- Hori, Yoshiaki
- Tawara, Hideyuki
|
출원인 / 주소 |
- Honda Giken Kogyo Kabushiki Kaisha
|
대리인 / 주소 |
Birch, Stewart, Kolasch &
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
3 |
초록
▼
A structure has individual oil passages for different applications of oil. A torque converter is provided on a crankshaft having an axially extending center hole. A crank chamber and a transmission chamber are separated from each other through a one-way valve. A pipe is inserted in the center hole o
A structure has individual oil passages for different applications of oil. A torque converter is provided on a crankshaft having an axially extending center hole. A crank chamber and a transmission chamber are separated from each other through a one-way valve. A pipe is inserted in the center hole of the crankshaft to form an oil passage for supplying hydraulic oil for driving the torque converter, an oil passage returned from the torque converter, and an oil passage for supplying a lubricating oil to the area surrounding the crankshaft. The oil passage returned from the torque converter is in communication with a chamber defined by a pair of inner and outer oil seals for sealing a bearing mounted on the crankshaft, a lower portion of the transmission chamber, and an oil passage having a check valve at the downstream end thereof.
대표청구항
▼
1. An internal combustion engine, comprising:a torque converter, said torque converter being provided on a crankshaft having an axially extending center hole for supplying hydraulic oil to said torque converter; a return oil passage from said torque converter, said return oil passage being in commun
1. An internal combustion engine, comprising:a torque converter, said torque converter being provided on a crankshaft having an axially extending center hole for supplying hydraulic oil to said torque converter; a return oil passage from said torque converter, said return oil passage being in communication with a hydraulic oil return passage formed in said crankshaft so as to extend axially of said crankshaft; a chamber in communication with said hydraulic oil return passage, said chamber being defined by a pair of inner and outer oil seals for sealing a bearing mounted on said crankshaft; and an oil passage in communication with said chamber, said oil passage being formed in a crankcase of the engine and having a check valve at a downstream end thereof. 2. An internal combustion engine comprising:a torque converter, said torque converter being provided on a crankshaft having an axially extending center hole for supplying hydraulic oil to said torque converter; a return oil passage from said torque converter, said return oil passage being in communication with a hydraulic oil return passage formed in said crankshaft so as to extend axially of said crankshaft; a chamber, said chamber being defined by a pair of inner and outer oil seals for sealing a bearing mounted on said crankshaft; and an oil passage, said oil passage being in communication with a crankcase and having a check valve at a downstream end thereof, wherein a pipe is inserted in said center hole of said crankshaft to form a hydraulic oil passage leading to said torque converter, said hydraulic oil return passage from said torque converter, and a lubricating oil passage leading to an area surrounding said crankshaft. 3. The internal combustion engine according to claim 1, wherein a crank chamber and a transmission chamber are separated from each other through a one-way valve.4. The internal combustion engine according to claim 2, wherein a crank chamber and a transmission chamber are separated from each other through a one-way valve.5. The internal combustion engine according to claim 1, wherein said axially extending center hole in said crankshaft includes an inner pipe and an outer pipe inserter therein, a space between said inner pipe and said outer pipe forming a hydraulic oil supply passage in communication with a radial hydraulic oil supply passage to said torque converter, and an interior of said inner pipe forming an oil passage in communication with an oil supply passage to a crank pin of the engine.6. The internal combustion engine according to claim 5, wherein a space formed between said outer pipe and said center hole of said crankshaft forms said hydraulic oil return passage formed in said crankshaft.7. The internal combustion engine according to claim 6, wherein a portion of said hydraulic oil supply passage is formed between said outer pipe and said center hole of said crankshaft, and said hydraulic oil return passage is separated from said hydraulic oil supply passage by a seal between said inner pipe and said center hole of said crankshaft.8. The internal combustion engine according to claim 5, wherein said hydraulic oil supply passage to said torque converter and said oil supply passage to said crank pin are in communication with an oil supply passage from an oil filter of the engine.9. An internal combustion engine, comprising:a crankshaft, said crankshaft having an axially extending center hole formed therein; an inner pipe and an outer pipe inserted into said axially extending center hole; and a torque converter, said torque converter being provided on said crankshaft; wherein a space between said inner pipe and said outer pipe forms a hydraulic oil supply passage to said torque converter. 10. The internal combustion engine according to claim 9, wherein an interior of said inner pipe forms an oil supply passage to a crank pin of the engine.11. The internal combustion engine according to claim 9, wherein a crank chamber and a transmission chamber are seaparated from each other through a one-way valve.12. The internal combustion engine according to claim 9, wherein a space formed between said outer pipe and said center hole of said crankshaft forms a hydraulic oil return passage from said torque converter.13. The internal combustion engine according to claim 12, wherein a portion of said hydraulic oil supply passage is formed between said outer pipe and said center hole of said crankshaft, and said hydraulic oil return passage is separated from said hydraulic oil supply passage by a seal between said inner piep and said center hole of said crankshaft.14. The internal combustion engine according to claim 9, further comprising:a chamber, said chamber being defined by a pair of inner and outer oil seals for sealing a bearing mounted on said crankshaft; and an oil passage, said oil passage being in communication with a crankcase and having a check valve at a downstream end thereof. 15. The internal combustion engine according to claim 10, wherein said hydraulic oil supply passage to said torque converter and said oil supply passage to said crank pin are in communication with an oil supply passage from an oil filter of the engine.16. The internal combustion engine according to claim 1, wherein said pair of inner and outer oil seals are located between an outer surface of said crankshaft and an inner surface of said crankcase to form said chamber between said crankshaft and said crankcase.17. The internal combustion engine according to claim 14, wherein said pair of inner and outer oil seals are located between an outer surface of said crankshaft and an inner surface of said crankcase to form said chamber between said crankshaft and said crankcase.
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