Structure of portable oil sump residual engine oil suction pump

Details Structure of portable oil sump residual engine oil suction pump Structure of portable oil sump residual engine oil suction pump

1990-04-30

1991-03-26

Lazarus, Ira S.

Lubrication

Automobile crank and gear case service

141 65, 141 27, 222385, F16N 3300

Patent

active

050021540

ABSTRACT:
A portable oil sump residual engine oil suction pump device, which comprises an oil reservoir having received therein a pump body to change the inner space of the oil reservoir into a negative pressure status so as to efficiently induce residual engine oil from an oil sump into the oil reservoir. A floating choke valve is fastened inside the oil reservoir at an upper position, which follows the filling of certain quantity of engine oil in the oil reservoir to block up a passage way to the pump body so as to stop the formation of vacuum and prohibit from entering of engine oil in the pump body.

REFERENCES:
patent: 1439295 (1922-12-01), Craig
patent: 2029781 (1936-02-01), McLean
patent: 3929155 (1975-12-01), Garretson

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