Title:
VALVE SYSTEM FOR ENGINE
Document Type and Number:
Japanese Patent JPH03172519
Kind Code:
A
Abstract:
PURPOSE:To provide fixed contact and uniform distribution of stress by making the outer peripheral surface taper angle of a cotter engaging the shaft end of an intake valve smaller than the inner peripheral taper angle of a retainer making intimate contact with the cotter and holding a valve spring. CONSTITUTION:An intake valve 1 is axially reciprocatively journalled by a valve guide 11. A cotter 2 engages the side of the shaft end of the intake valve 1. The inner peripheral surface of a retainer 3 having the tapered surface corresponding to the outer peripheral surface of the cotter 2 and holding a valve spring 31 makes intimate contact with the outer peripheral surface of the cotter 2. The intake valve 1 and retainer 3 engagingly lock each other through the cotter 2. Thus, the taper angle of the outer peripheral surface of the cotter 2 is set smaller than the taper angle of the inner peripheral surface of the retainer 3, so that contact between the cotter 2 and retainer 3 is fixed while the distribution of stress between the cotter 2 and in take valve 1 is evened.
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Inventors:
YAMAMURO HIDEO
TSUBONUMA TAKAHIRO
TSUBONUMA TAKAHIRO
Application Number:
JP31239489A
Publication Date:
July 25, 1991
Filing Date:
December 01, 1989
Export Citation:
Assignee:
ISUZU CERAMICS RES INST
International Classes:
F01L3/10; (IPC1-7): F01L3/10
Domestic Patent References:
| JPS62291408A | 1987-12-18 |
Attorney, Agent or Firm:
Minoru Tsuji