Gear pump or motor with tooth tips of dissimilar metal
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United States of America Patent
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Jul 28, 1987
Grant Date -
N/A
app pub date -
Mar 25, 1986
filing date -
Mar 25, 1986
priority date (Note) -
Expired
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Abstract
A gear pump and motor is provided having increased life and efficiency as a result of improved wiping action of the gear teeth on the inner periphery of the pump chamber. This is accomplished by providing a non-smooth surface layer of a dissimilar metal such as a carbide on the tip ends of the teeth.
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