Oil pump
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United States of America Patent
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-
Jun 7, 1994
Grant Date -
N/A
app pub date -
Feb 4, 1992
filing date -
Feb 8, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An oil pump comprises a housing, a cover, an inner gear having external teeth and a recess, and an outer gear having internal teeth engaged with the external teeth of the inner gear. The housing or the cover includes an engagement protrusion to be engaged with the recess of the inner gear for supporting the inner gear during assembly.
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