Valve operating system for internal combustion engine
This patent describes a valve operating system for an internal combustion engine, comprising an intake rotary valve and an exhaust rotary valve separately disposed in an intake passage and an exhaust passage, respectively, which independently communicate with a combustion chamber defined between a piston and a cylinder head in an internal combustion engine, the valves including spherical valve bodies adapted to open and close the intake and exhaust passages, respectively, and a valve operating mechanism having an intermittent operating function of rotatively driving the valve bodies of the intake and exhaust rotary valves in response to movement of the piston to provide an opening and closing control for the intake and exhaust rotary valves, and holding the rotary valve bodies in valve-opening and closing positions for respective predetermined periods of time, wherein the valve operating mechanism includes cam means adapted to be continuously rotated in one direction in response to the movement of the piston, rocker arms abutting the cam means and adapted to swing within a predetermined angle in accordance with the rotation of the cams, and rotary shafts each having one of the spherical valve bodies secured to one of the opposite ends thereof and adapted to reciprocally rotate between the valve-opening and closing positions of the valve body around an axis of the rotary shaft in accordance with the swinging movement of the rocker arm upon receiving a driving force from the rocker arm on the other end thereof, and the spherical valve bodies being each supported within the cylinder head through a valve seat member, and a seal spring being interposed between the valve seat member and the cylinder head.
- Assignee:
- Honda Giken Kogyo Kabushiki Kaisha, Tokyo
- Patent Number(s):
- US 4776306
- OSTI ID:
- 6620685
- Resource Relation:
- Patent File Date: Filed date 4 Apr 1986
- Country of Publication:
- United States
- Language:
- English
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