Overhead cam type four-valve actuating apparatus for internal combustion engine
This patent describes a four-valve, overhead cam internal combustion engine having plural cylinders in a line and a pair of valves on each side of the line for each cylinder, a valve actuating apparatus, comprising: a single cam shaft rotatably mounted between the pairs of values above and extending longitudinally along the line of cylinders, a first rocker arm shaft means mounted parallel to the cam shaft and having rocker arms pivotally mounted thereon and engaging the cam shaft for actuating the pairs of valves on one side of the line of cylinders, a second rocker arm shaft means mounted parallel to the cam shaft and having a plurality of rocker arms pivotally mounted thereon and engaging the cam shaft for actuating the pairs of valves on the other side of the line of cylinders. The second rocker arm shaft means including a separate short shafts with each short shaft pivotally supporting two rocker arms of which one rocker arm operates one valve for one cylinder and the other of the two rocker arms operates one valve for an adjacent cylinder, each short shaft having two ends which are supported in spaced relation from the ends of each adjacent short shaft, and means mounted directly above each cylinder for supporting each of the two ends of each short shaft with the rocker arms pivotally supported thereon between the ends.
- Assignee:
- Honda Giken Kogyo Kabushiki Kaisha, Tokyo
- Patent Number(s):
- US 4773361
- OSTI ID:
- 6665904
- Resource Relation:
- Patent File Date: Filed date 7 Aug 1986
- Country of Publication:
- United States
- Language:
- English
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