Method for pneumatically removing oil from an engine

Details Method for pneumatically removing oil from an engine Method for pneumatically removing oil from an engine

2004-07-26

2008-12-23

Siconolfi, Robert A (Department: 3683)

Lubrication

Automobile crank and gear case service

Reexamination Certificate

active

07467689

ABSTRACT:
Positive pressure is used to induce the flow of a liquid lubricant from a crankcase and through a drain conduit so that used oil can be removed from the engine and collected in a container during an oil change procedure. Positive pressure is introduced into the crankcase, and into an ullage region above the liquid lubricant, by the use of an inlet valve that can be attached to a cam cover to replace a PCV valve temporarily during the oil change.

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