Internal-combustion engines – Particular piston and enclosing cylinder construction – Cylinder head
Patent
1991-05-24
1992-06-23
Cross, E. Rollins
Internal-combustion engines
Particular piston and enclosing cylinder construction
Cylinder head
123572, 123 9027, 123 9034, 123196M, F02M 2500, F01L 100
Patent
active
051233851
ABSTRACT:
A cylinder head for a double overhead camshaft engine, with a plurality of intake valves and a plurality of exhaust valves for each cylinder, is covered by a cylinder head cover to support, for rotation, intake and exhaust camshafts. A hermetically sealed chamber, formed between the cylinder head and head cover as an oil jacket, is divided into two chambers, enclosing major parts of the intake and exhaust camshafts, respectively, which are in communication with each other near first ends of the chambers. An outlet hole is formed in the cylinder head cover so as to permit blow-by gas to flow out of the chamber. A cover, covering a gear train for operationally coupling the intake and exhaust camshafts, is bolted to one end of the head cover at several points around the gear train and to the cylinder head.
REFERENCES:
patent: 4517951 (1985-05-01), Otaka et al.
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patent: 4709667 (1987-12-01), Ichihara et al.
patent: 4895113 (1990-01-01), Speir et al.
patent: 4915066 (1990-04-01), Koshimoto et al.
patent: 4955335 (1990-09-01), Jingu et al.
Iwata Noriyuki
Masuda Shunji
Sado Osamu
Ueda Kazuhiko
Uesugi Tatsuya
Cross E. Rollins
Macy M.
Mazda Motor Corporation
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