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Plunger oil pump with combined rotary and axial motion where plunger is made from two materials with different wear properties
Plunger oil pump with combined rotary and axial motion where plunger is made from two materials with different wear properties
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机译:具有组合旋转和轴向运动的柱塞油泵,其中柱塞由两种具有不同磨损特性的材料制成
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摘要
The oil pump has a plunger (50) which consists of a pump head (52) formed of the same material as the body (10) and a drive section (54) made of a high wear resistant material. The end of the pump has a recess into which fits a projection from the drive section. At the rear of the drive section is a cam element for reciprocating motion. The drive section (54) contains gearing (60) on its periphery, which engages with a worm drive to give rotary motion. The drive contains bearing surfaces (62,64) on either side of the gearing.
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