发明名称 |
ARRANGEMENT FOR CHANGING THE VALVE TIMING OF AN INTERNAL-COMBUSTION ENGINE |
摘要 |
An arrangement for changing the valve timing of an internal-combustion engine has a camshaft, which can be rotated relative to a shaft driving it. The camshaft has a phase converter with a piston which is hydraulically acted upon on both sides. In the camshaft, an axial recess is arranged in which an inserted pipe separates two spaces from one another. An on/off valve fed from the oil circulating system, in one position, via one of the spaces, supplies the piston with pressure oil so that this piston is axially shifted into a first end position and in the process rotates the camshaft. In a second position, the piston, by way of the second space is axially pushed back by pressure oil.
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申请公布号 |
US5138985(A) |
申请公布日期 |
1992.08.18 |
申请号 |
US19910735006 |
申请日期 |
1991.07.25 |
申请人 |
DR. ING. H.C.F. PORSCHE AG |
发明人 |
SZODFRIDT, IMRE;SCHULTZ, WILLI;AMPFERER, HERBERT |
分类号 |
F01L1/34;F01L1/344;F01M1/06;F01M9/10 |
主分类号 |
F01L1/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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