VALVE SPRING SUPPORTING STRUCTURE OF ENGINE

Title:

VALVE SPRING SUPPORTING STRUCTURE OF ENGINE

Document Type and Number:

Japanese Patent JP2004028080

Kind Code:

A

Abstract:

To provide a valve spring supporting structure of an engine for reducing the height of a cylinder head while ensuring the required length of a valve spring.

A spring bearing seat comprises an outer spring bearing seat 10k and an inner spring bearing seat 10j formed in a step-down manner so as to be located at a lower part, and a valve spring comprises an outer spring 37 and an inner spring 36 which is concentrically disposed on an inner side thereof and longer than the outer spring 37.

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Inventors:

KUROSAWA SHINICHI

Application Number:

JP2003009479A

Publication Date:

January 29, 2004

Filing Date:

January 17, 2003

Export Citation:

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Assignee:

YAMAHA MOTOR CO LTD

International Classes:

F01L1/047; F01L1/053; F01L1/08; F01L1/18; F01L1/26; F01L1/46; F01L3/10; F01L13/00; F02F1/24; F02F1/38; F02F1/42; F02M61/14; F02B23/10; F02B75/12; F02M59/10; (IPC1-7): F01L3/10; F01L13/00; F02F1/24; F02F1/42; F02M61/14

Attorney, Agent or Firm:

Tsutomu Shimoichi

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