Title:
VALVE SEAT AND CYLINDER HEAD
Document Type and Number:
Japanese Patent JP2014088793
Kind Code:
A
Abstract:
To provide a valve seat for enabling efficient heat release while securing mounting accuracy, and to provide a cylinder head on which the valve seat is mounted.
A ring-shaped valve seat 10 which is mounted on a cylinder head 2 of an engine at an opening 20 of its intake/exhaust port communicated with a combustion chamber 4 and on which a valve 1 for opening/closing the intake/exhaust port abuts, includes a thread part 12a formed on a ring-shaped outer peripheral face 12 so as to be threaded to the cylinder head 2, and a rotary-body-shaped part 13a formed on a ring-shaped upper face 13 in the shape of a non-planar rotary body using the center axis of the outer peripheral face 12 as a rotational center to contact the cylinder head 2.
Inventors:
KOJIMA KAZUHIRO
AZUMA HIROBUMI
KOJIMA MITSUTAKA
FUJIMOTO MASAHIRO
SATO KIMIHIKO
MIYAMOTO KAZUYUKI
HOSHIKAWA ATSUSHI
OSAWA NORITSUGU
AZUMA HIROBUMI
KOJIMA MITSUTAKA
FUJIMOTO MASAHIRO
SATO KIMIHIKO
MIYAMOTO KAZUYUKI
HOSHIKAWA ATSUSHI
OSAWA NORITSUGU
Application Number:
JP2012238352A
Publication Date:
May 15, 2014
Filing Date:
October 29, 2012
Export Citation:
Assignee:
MITSUBISHI MOTORS CORP
International Classes:
F02F1/24; F01L3/22
Attorney, Agent or Firm:
Yu Sanada
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