FIELD: engineering industry.
SUBSTANCE: invention refers to engineering industry, and mainly to gas distribution valve mechanisms of internal combustion engines. Valve includes three bushings in axial direction. Upper bushing is threaded, and has from above the faces meant for a wrench, and a locking nut to be fixed with, and a cone-shaped chamfer - in its lower part. Under upper bushing there installed is an oil bushing made in the form of a flattened cone. Oil bushing rests on a steady guide bushing that is pressed in lower part of cylinders' head. Upper threaded bushing is meant for controlling the operating clearance between oil bushing and valve shaft. Oil bushing is made from plastic fluor or of soft metals.
EFFECT: improving consistency of valve operation.
1 dwg
| Title | Year | Author | Number |
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| HYDRAULIC TAPPET | 1995 |
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| AXIAL FOUR-STROKE ENGINE | 2001 |
|
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| CYLINDER HEAD OF THERMAL STRESS DIESEL | 1991 |
|
RU2005892C1 |
