Adapter system for engine flushing apparatus

An adapter system for use with an internal combustion engine flushing apparatus, which permits universal connection to the oil filter port and oil drain pan of a large number of different sizes and types of internal combustion engines for introducing flushing fluid through the oil filter port and draining of said fluid through the oil drain pan port, said oil filter port containing a hollow cylindrical mounting post, said hollow in said cylindrical mounting post defining a first passage through which oil is supplied to the engine components from said oil filter port during engine operation and a second passage from the oil pump in said internal combustion engine through which oil is supplied to said oil filter port during engine operation, said adapter system comprising:

• a flushing system adapter set, comprising a primary adapter set and a secondary adapter set, said primary adapter set comprised of a plurality of adapter pieces which are selectively usable at the oil filter port individually or in combination with a selected one of said secondary adapters fitting to the oil filter port of substantially most internal combustion engines and creating a liquid tight seal therewith
• each said primary adapter within said set of adapters including:
• a body having an inlet and an outlet side and defining first and second fluid passage means between said inlet and outlet sides, said body including means for coupling said first fluid passage means to said first passage of said oil filter port, and said second fluid passage means to said second passage of said oil filter port;
• said first fluid passage means having a first predetermined cross section area sufficient to surround said first passage of said oil filter port, said first passage of said oil filter port having a cross section area, A1, and said second fluid passage means having a predetermined cross section area, At, such that the ratio of flow through said A1 and At is a predetermined constant;
• coupling means for coupling said inlet side of said primary adapter to receive flushing fluid from a flushing apparatus, whereby said flushing fluid is distributed in said body between said first and second fluid passage means;
• and
• a drain pan port adapter set comprised of a plurality of adapter pieces which are selectively usable at the drain pan port, said drain pan port adapter pieces individually fitting the drain pan port of substantially most internal combustion engines and creating a liquid tight seal therewith.

An adapter set for use with an internal combustion engine flushing apparatus permitting connection of a conduit from the apparatus at the oil filter port leading to the lubrication system of the internal combustion engine, said oil filter port containing a first passage through which oil is supplied to the engine components from said oil filter port during engine operation and a second passage from the oil pump in said internal combustion engine through which oil is supplied to said oil filter port during engine operation, said adapter set comprising:

• a flushing system adapter set, comprising a primary adapter set and a secondary adapter set, said primary adapter set comprised of a plurality of adapter pieces which are selectively usable at the oil filter port individually or in combination with a selected one of said secondary adapters fitting to the oil filter port of substantially most internal combustion engines and creating a liquid tight seal therewith;
• each said primary flushing system adapter within said set of adapters including:
• a body having an inlet and an outlet side and defining first and second fluid passage means between said inlet and outlet sides, said body including means for coupling said first fluid passage means to said first passage of said oil filter port and said second fluid passage means to said second passage of said oil filter port;
• said first fluid passage means having a predetermined cross section area sufficient to cover said first passage of said oil filter port, said first passage of said oil filter port having a cross section area, A1, and said second fluid passage means having a predetermined cross section area, At, and wherein the ratio of flow through said A1 and At is essentially a predetermined constant.

An adapter set for use with an internal combustion engine flushing apparatus permitting connection of a conduit from the apparatus to the oil drain pan plug port:

• coupling means having an inlet side and an outlet side, with said outlet side being connected to said flushing apparatus;
• an oil drain pan plug port adapter set, comprising a primary adapter set and a secondary adapter set, said adapter set comprised of a plurality of adapter pieces which are selectively usable at the drain pan plug port, each of said adapter pieces being individually connectable to said inlet side of said coupling means;
• said coupling means further comprising:
• a first base portion and a second base portion, said base portions defining an axially extending fluid passage therethrough;
• said first base portion, including
• conduit coupling means for coupling to a hose from said flushing equipment;
• said second base portion, including thread means for coupling to said drain pan port adapter;
• said first base portion being rotatably mounted to said second base portion to permit said first base portion to be rotatably moved relative to said second base portion;
• and
• rotary gland means, said rotary gland means being mounted between said first and base second portions for preventing leakage of fluid from said fluid passage from the juncture between said first and second base portions without restricting rotatable movement therebetween;
• said rotary gland further comprising:
• O-ring seal means defining a circle, said O-ring seal means frictionally engaging said first and second base portions and circumscribing said fluid passage to provide a fluid seal between said base portions, while permitting one of said base portions to frictionally slide against said O-ring seal means responsive to relative rotational movement between said first and second base portions.