| 摘要 |
In a valve spring retainer plate for supporting the spring forces of closing springs acting upon gas exchange valves in the valve operation of internal combustion engines having a reinforcement member of a material of lower strength and an annular supporting member of a material of higher strength being positioned between the reinforcement member and the closing spring, it is proposed that the supporting member for simplifying the manufature and the premounting merely is maintained on the reinforcement member by friction fit.
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