A gas engine valve spring is loaded to 35kgf when the valve is closed & 52kgf hen the valve is open. The valve lift is 8mm. The outside diameter is to be from 38mm~45mm, & the permissible stress is 413N/mm2 . Determine: (a) the wire & outside diameter; (b) the number of effective coils; (c) the free length when it is squared & ground.
A gas engine valve spring is loaded to 35kgf when the valve is closed & 52kgf hen the valve is open. The valve lift is 8mm. The outside diameter is to be from 38mm~45mm, & the permissible stress is 413N/mm2 . Determine: (a) the wire & outside diameter; (b) the number of effective coils; (c) the free length when it is squared & ground.
Mechanics of Materials (MindTap Course List)
9th Edition
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Barry J. Goodno, James M. Gere
Chapter3: Torsion
Section: Chapter Questions
Problem 3.8.9P: Two sections of steel drill pipe, joined by bolted flange plates at B, arc subjected to a...
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(5) A gas engine valve spring is loaded to 35kgf when the valve is closed & 52kgf hen the valve is open.
The valve lift is 8mm. The outside diameter is to be from 38mm~45mm, & the permissible stress is
413N/mm2
. Determine:
(a) the wire & outside diameter;
(b) the number of effective coils;
(c) the free length when it is squared & ground.
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