Internal-combustion engines – Poppet valve operating mechanism – Overhead camshaft
Patent
1985-04-10
1986-11-25
Lazarus, Ira S.
Internal-combustion engines
Poppet valve operating mechanism
Overhead camshaft
123 9023, 123 904, F01L 126
Patent
active
046242228
ABSTRACT:
Several embodiments of valve arrangements for internal combustion engines that permit the use of three intake valves per cylinder while maintaining a small clearance volume and minimum surface area for the cylinder head. This is accomplished by positioning two of the valves so that their axes are inclined at a different angle to the line of reciprocation of the piston and which axes define a plane that intersects the axis of reciprocation of the remaining intake valve and which is positioned at a lesser angle to the axis of reciprocation. The head of the third valve is disposed at a lesser distance from the line of intersection than the heads of the other two valves so as to achieve the desired compactness. In some embodiments of the invention, the valves are operated directly and in others they are operated via rocker arms. In addition, a rocker arm arrangement is provided that permits the use of five valves per cylinder actuated by a single centrally positioned camshaft while still affording the possibility of a central spark plug location and easy servicing of the spark plug.
REFERENCES:
patent: 1301007 (1919-04-01), Roof
patent: 1415167 (1922-05-01), Fuchs
patent: 3139870 (1964-07-01), Sampietro
Beutler Ernest A.
Lazarus Ira S.
Yamaha Hatsudoki Kabushiki Kaisha
LandOfFree
Intake valve structure for internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Intake valve structure for internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intake valve structure for internal combustion engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1153422