Valve spring retainer
OwnerHaruki Kobayashi, Tatsuo Kanzaki +1inventors
InventorsHaruki Kobayashi, Tatsuo Kanzaki, Takeshi Sassa
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Abstract
A valve spring retainer is fixed at the upper end of a poppet valve via a pair of cotters in a valve-operating mechanism of an internal combustion engine. The valve spring retainer comprises a hollow inverted-frustoconical portion and an outward flange at the end thereof. The lower surface of the outward flange retains the upper end of a valve spring on the lower surface. An annular projection is provided on the outward flange to restrict sideward movement of the valve spring and to increase rigidity of the retainer.
Claims15
A valve spring retainer in an internal combustion engine, the retainer comprising:
- a hollow inverted-frustoconical portion;
- an outward spring-retaining flange at an upper end of the frustoconical portion, a lower surface of the spring-retaining flange retaining an upper end of a valve spring;
- and
- an outward reinforcement flange at a lower end of the frustoconical portion to increase rigidity of the retainer.
A valve spring retainer in an internal combustion engine, the retainer comprising:
- a hollow inverted-frustoconical portion;
- and
- an outward spring-retaining flange at a lower end of the frustoconical portion, a lower surface of the spring-retaining flange retaining an upper end of a valve spring.
A valve spring retainer in an internal combustion engine, the retainer comprising:
- a hollow inverted-frustoconical portion;
- and
- a spring-retaining flange at an upper end of the frustoconical portion, a lower surface of the flange retaining an upper end of a valve spring, the flange comprising an inner portion, an outer portion which is slightly higher than the inner portion, and a guide portion between the inner and outer portions.
Dependencies are inferred from the claim text.