Engine hydraulic three-stage variable valve control mechanism, engine and method
The invention discloses an engine hydraulic three-stage variable valve control mechanism, an engine and a method. A first oil drainage ring groove and a second oil drainage ring groove are formed in a shell of a hydraulic full-variable valve mechanism; a tappet hole is formed in the tappet; the cont...
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Format: | Patent |
Sprache: | chi ; eng |
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