Dual-VVT (Variable Valve Timing) engine oil gallery with hydraulic tappet oil passage
A technology of hydraulic tappet and lubricating oil circuit, applied in the direction of lubrication of valve accessories, etc., can solve the problems of longer adjusting camshaft phase time, poor VVT response, and increased pressure loss, etc., to ensure normal lubrication and work, simplifying The effect of oil circuit and fuel consumption reduction
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[0017] The present invention will be further described below in conjunction with the accompanying drawings.
[0018] see figure 1 The shown double VVT engine lubricating oil passage with hydraulic tappet oil passage includes a main oil passage 11 located at the front end of the cylinder head and communicated with the cylinder block, an oil control valve oil passage 12 and a hydraulic tappet oil passage. The passage 13 is connected in parallel on the main oil passage 11;
[0019] An intake oil control valve installation cylinder 12-1 and an exhaust oil control valve installation cylinder 12-2 are connected in parallel on the oil control valve oil passage 12; the intake oil control valve installation cylinder 12-1 is connected with the intake air The oil passage 15 of the oil control valve A communicates with the oil passage 17 of the intake oil control valve B, and the oil passage 15 of the intake oil control valve A communicates with the intake oil control valve located in ...
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