EP 0416600 A1 19910313 - Cylinder head of internal combustion engine.
Title (en)
Cylinder head of internal combustion engine.
Title (de)
Zylinderkopf eine Brennkraftmaschine.
Title (fr)
Culasse d'un moteur à combustion interne.
Publication
Application
Priority
JP 23006289 A 19890905
Abstract (en)
A cylinder head (1) of a DOHC internal combustion engine has a plurality of bearing sections which are located in the vicinity of each cylinder of the engine. Each of the bearing sections has a head bolt insertion-hole (16, 17) which vertically extends to pass through the bearing section and is connected with a head bolt hole (18, 19) located therebelow. Furthermore, Y-shaped rocker arms (2, 3) of the end pivot type are disposed on the cylinder head (1) so that each swinging end of the rocker arm (2, 3) for the intake valves (51) and that for the exhaust valves (52) are disposed opposite to each other. Therefore, an angle defined between the stems of the intake and exhaust valves can become small. This can make flatter the inclination of the upper surface of the combustion chamber, thereby contributing to setting the engine in a suitable compression ratio. Additionally, since the distance between the intake and exhaust camshafts (44, 45) can be suppressed relatively short, the lateral width of the cylinder head (1) becomes short.
IPC 1-7
IPC 8 full level
F01L 1/04 (2006.01); F01L 1/053 (2006.01); F01L 1/26 (2006.01); F02F 1/00 (2006.01); F02F 1/24 (2006.01); F02F 1/42 (2006.01); F02B 1/04 (2006.01)
CPC (source: EP)
F01L 1/053 (2013.01); F01L 1/26 (2013.01); F02F 1/4214 (2013.01); F02B 1/04 (2013.01); F02B 2275/18 (2013.01); F02F 2001/245 (2013.01); F02F 2007/0063 (2013.01)
Citation (search report)
- [XP] GB 2216187 A 19891004 - NISSAN MOTOR [JP]
- [X] EP 0323233 A1 19890705 - HONDA MOTOR CO LTD [JP]
- [A] US 4641609 A 19870210 - TANAKA YOSHIMICHI [JP]
- [A] DE 3545448 A1 19870625 - BAYERISCHE MOTOREN WERKE AG [DE]
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 90117130 A 19900905; JP 23006289 A 19890905