US 5,782,315 A · Oil filter pump and automatic method for prelubricating an engine

Abstract

An oil filter pump system for automatically prelubricating an internal combustion engine, uses a well known conventional oil filter design further including inlet and outlet check valves and a flexible membrane operatively connected to a prime mover. The prime mover actuates the flexible membrane back and forth from an unbiased at rest position according to an operating cycle programmed into an electronic controller. The electronic controller switches control power from the normally provided battery according to an operating cycle. The elapsed time of the operating cycle is smaller than the elapsed time for the previous prelubricating cycle to become ineffective from oil dripping from working surfaces desired to be protected from wear. The alternate movement of the flexible membrane cooperating with the inlet and outlet check valve scheme converts the conventional oil filter into an effective diaphragm pump readily connected to the normally provided engine lubricating galleries for the purpose of discharging a portion of lubricating fluid removed from the normally provided oil sump in a conventional internal combustion engine. In another embodiment, an adapter kit assembly is made to mate to a conventional oil filter by means of clamping the assembly around the conventional oil filter. A set of orifices is easily punctured in the upper wall of the conventional oil filter. An inlet and outlet check valve scheme is provided and with a prime mover alternately moving a flexible membrane in the adapter kit, converts the combination into an effective diaphragm pump. Power transmission means to the flexible membrane can be pneumatic, mechanical, electromagnetic, hydraulic, among others. According to another aspect of the invention, a method for automatically prelubricating an engine includes the steps of providing an electronic controller means coupled to a pump for automatically switching control power from the battery to the prime mover according to an operating cycle program. Programming the electronic controller with the operating cycle program which is defined as the elapsing of a first period of time added to the elapsing of a second period of time. Actuating the oil filter pump during the elapsing of the first period of time to pump and discharge the lubricating oil contained in the oil sump into the engine lubricating galleries. Thereafter, elapsing of the second period of time. And, thereafter repeating the operating cycle whereby by continuously repeating the operating cycle the engine is automatically prelubricated and primed, and protected from wear by simultaneous priming and prelubricating.

Claims18

Dependent claims

An oil filter pump system replacing a normally provided oil filter and attached to a normally provided point of connection in an internal combustion engine for prelubricating a set of normally provided engine galleries, said engine having an oil sump containing a lubricating fluid, a battery, a normally provided oil filter point of attachment on said engine, comprising:

a rigid enclosure containing a filter element, and further including a flexible membrane coupled by power transmission means to a prime mover to urge said flexible membrane to change an internal volume defined by said rigid enclosure and said flexible membrane in its unbiased at rest position;
an inlet check valve means to allow lubricating fluid flow into said internal volume;
an outlet check valve means to allow lubricating fluid flow out of said internal volume;
a conduit means for fluidly connecting said inlet check valve means to said oil sump to remove a portion of said lubricating oil while said flexible membrane is urged by said prime mover to increase said internal volume;
an oil filter pump outlet orifice to allow for attachment of said oil filter pump to said oil filter normally provided point of attachment on said engine to fluidly connect to said engine oil galleries to discharge said portion of lubricating fluid while said flexible membrane is urged by said prime mover to decrease said internal volume;
and
an electronic controller means coupled to said battery for automatically switching control power to said prime mover.

4 more elements

An oil filter pump system attached to a normally provided oil filter on an internal combustion engine for prelubricating a set of normally provided engine galleries, said engine having an oil sump containing a lubricating fluid, a battery, comprising:

a rigid enclosure dimensioned as a cylinder in cross section to mate to a conventional oil filter which is shaped as a cylinder in cross section, said enclosure including a flexible membrane coupled by power transmission means to a prime mover to urge said flexible membrane to change an internal volume defined by said rigid enclosure and said flexible membrane in its unbiased at rest position;
a normally provided upper oil filter wall equipped with a plurality of orifices to fluidly connect said rigid enclosure to said conventional oil filter internal volume;
an inlet check valve means to allow lubricating fluid flow into said internal volume;
an outlet check valve means to allow lubricating fluid flow out of said internal volume;
a conduit means for fluidly connecting said inlet check valve means to said oil sump to remove a portion of said lubricating oil while said flexible membrane is urged by said prime mover to increase said internal volume;
a normally provided threaded point of attachment of a conventional oil filter to discharge said portion of lubricating fluid into said engine galleries while said flexible membrane is urged by said prime mover to decrease said internal volume;
and
an electronic controller means coupled to said battery for automatically switching control power to said prime mover.

5 more elements

a rigid enclosure containing within a set of conventional and well known components of a conventional oil filter, and further including a flexible membrane coupled by electromagnetic power transmission means to a prime mover to urge said flexible membrane to change an internal volume defined by said rigid enclosure and said flexible membrane in its unbiased at rest position;
an inlet check valve means to allow lubricating fluid flow into said internal volume;
an outlet check valve means to allow lubricating fluid flow out of said internal volume;
a conduit means for fluidly connecting said inlet check valve means to said oil sump to remove a portion of said lubricating oil while said flexible membrane is urged by said prime mover to increase said internal volume;
an oil filter pump outlet orifice to allow for attachment of said oil filter pump to said oil filter normally provided point of attachment on said engine to fluidly connect to said engine oil galleries to discharge said portion of lubricating fluid while said flexible membrane is urged by said prime mover to decrease said internal volume;
and
an electronic controller means coupled to said battery for automatically switching control power to said prime mover.

4 more elements

Dependencies are inferred from the claim text.

Oil filter pump and automatic method for prelubricating an engine

Life of this patent

Oil filter pump and automatic method for prelubricating an engine

Life of this patent

Abstract

Claims18