Layout structure of hydraulic control valve for valve train...

Details Layout structure of hydraulic control valve for valve train... Layout structure of hydraulic control valve for valve train...

2006-08-29

2008-10-21

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

C123S041860, C123S1960CP

Reexamination Certificate

active

07438031

ABSTRACT:
To provide a layout structure of a hydraulic control valve for a valve train in an internal combustion engine which can reduce the influence of heat from the cylinders and can avoid the impairment of the external appearance of the internal combustion engine. An internal combustion engine has a valve operation characteristics changing mechanism that changes the operation characteristics of at least one of an intake valve and an exhaust valve. A hydraulic control valve for a valve train controls the pressure of a hydraulic fluid supplied to the valve operation characteristics changing mechanism. The hydraulic control valve is located on the left side surface of right and left crankcases that support and cover a crankshaft at a position below cylinders.

REFERENCES:
patent: 2786457 (1957-03-01), Mickley
patent: 5666915 (1997-09-01), Kawashima et al.
patent: 6202610 (2001-03-01), Yoshiki et al.
patent: 2002-180812 (2002-06-01), None

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