Engine oil pan

Claim 2

An oil pan assembly for an internal combustion engine including wall means providing an upper collecting chamber and a lower sump chamber interconnected to each other by at least a first drain opening and a spaced apart second drain opening, valve support means secured within each of said first drain opening and said second drain opening, and float valve means in said lower sump chamber supported by said valve support means for movement relative thereto whereby each of said float valve means is independently movable from a first position blocking the said drain opening with which it is associated to a second position in which said drain opening with which it is associated is unblocked by said float valve means.

Claim 3

An oil pan assembly according to claim 1 wherein said wall means includes an oil pan having sidewalls, end walls and a bottom panel defining a sump for oil, an upper channel-shaped baffle in sealing engagement with said sidewalls and said end walls of said oil pan to provide said upper collecting chamber, said upper baffle being provided with spaced apart drain spouts in the bottom portion thereof, and a lower baffle having spaced apart drain apertures therein, said lower baffle being positioned below said upper baffle in sealing engagement with said sidewalls and said end walls of said oil pan to form with said bottom panel said lower sump chamber with said apertures therein in alignment with said drain spouts of said upper baffle to form with said drain spouts said first and said second drain openings.

Claim 4

An oil pan assembly for an internal combustion engine, said oil pan assembly including an oil pan having sidewalls, end walls and a bottom panel defining a reservoir for oil, baffle means positioned within said oil pan and in sealing engagement with said sidewalls and said end walls of said oil pan to provide thErewith an upper collecting chamber and a lower sump chamber, said baffle means including spaced apart longitudinal drain openings to provide communication between said upper collecting chamber and said lower sump chamber, valve support means secured within each of said drain openings, and float valve means extending into said lower sump chamber and supported by said valve support means for movement with respect to said drain openings from a first position blocking said drain openings to a second position in which said drain openings are unblocked by said float valves.

Claim 5

An oil pan assembly for an internal combustion engine, said oil pan assembly including an oil pan having sidewalls, end walls and a bottom panel defining a reservoir for oil, baffle means positioned within said oil pan and in sealing engagement with said sidewalls and said end walls of said oil pan to provide thErewith an upper collecting chamber and a lower sump chamber, said baffle means including spaced apart longitudinal drain openings to provide communication between said upper collecting chamber and said lower sump chamber, valve support means secured within each of said drain openings, and float valve means extending into said lower sump chamber and supported by said valve support means for movement with respect to said drain openings from a first position blocking said drain openings to a second position in which said drain openings are unblocked by said float valves.

Claim 6

An oil pan assembly for an internal combustion engine according to claim 3 wherein said baffle means includes an upper channel-shaped baffle to form a drain trough, said upper baffle having longitudinally spaced apart drain spouts in the bottom portion thereof, and a lower baffle having spaced apart drain apertures therein, said lower baffle being secured to the underside of said upper baffle with said drain apertures of said lower baffle in alignment with said drain spouts of said upper baffle to form said longitudinal drain openings, said lower baffle forming, with said bottom panel and portions of said sidewalls and said end walls, said lower sump chamber.

Claim 7

In combination with an oil pan for an internal combustion engine in which the oil pan includes sidewalls, end walls and a bottom panel; an upper channel-shaped baffle in sealing engagement with said sidewalls and said end walls of said oil pan to provide an upper collecting chamber, said upper baffle being provided with spaced apart drain spouts in the bottom portion thereof, a lower baffle having spaced apart drain apertures therein, said lower baffle being positioned beneath said upper baffle in sealing engagement with said sidewalls and said end walls of said oil pan to form with said bottom panel a lower sump chamber, said apertures in said lower baffle being positioned in alignment with said drain spouts of said upper baffle, valve means including float means positioned to control the flow of oil through said drain apertures as determined by the level of oil in said lower sump chamber.

Claim 8

In combination with an oil pan for an internal combustion engine in which the oil pan includes sidewalls, end walls and a bottom panel; an upper channel-shaped baffle in sealing engagement with said sidewalls and said end walls of said oil pan to provide an upper collecting chamber, said upper baffle being provided with spaced apart drain spouts in the bottom portion thereof, a lower baffle having spaced apart drain apertures therein, said lower baffle being positioned beneath said upper baffle in sealing engagement with said sidewalls and said end walls of said oil pan to form with said bottom panel a lower sump chamber, said apertures in said lower baffle being positioned in alignment with said drain spouts of said upper baffle, valve means including float means positioned to control the flow of oil through said drain apertures as determined by the level of oil in said lower sump chamber.

Claim 9

An oil control device for use in the oil pan of an internal combustion engine of a motor vehicle in which the oil pan has sidewalls, end walls and a bottom panel, said oil retention device including an upper channel-shaped baffle adapted to be positioned in sealing engagement with the sidewalls and the end walls of the oil pan to provide an upper oil collecting chamber, said upper baffle being provided with spaced apart longitudinal drain spouts in the bottom portion thereof, a lower baffle having spaced apart drain apertures therein, said lower baffle being secured to the underside of said upper baffle with said drain apertures therein in alignment with said drain spouts of said upper baffle, said lower baffle being adapted to engage the sidewalls and the end walls of the oil pan to form with the bottom panel thereof a lower sump chamber, valve support means secured within each of said drain spouts, and float valve means movably supported by said valve support means to extend into said lower sump chamber whereby said float valve means are adapted to open and close said drain apertures in response to the level of liquid in said lower sump chamber.

Claim 10

An oil control device for use in the oil pan of an internal combustion engine of a motor vehicle in which the oil pan has sidewalls, end walls and a bottom panel, said oil retention device including an upper channel-shaped baffle adapted to be positioned in sealing engagement with the sidewalls and the end walls of the oil pan to provide an upper oil collecting chamber, said upper baffle being provided with spaced apart longitudinal drain spouts in the bottom portion thereof, a lower baffle having spaced apart drain apertures therein, said lower baffle being secured to the underside of said upper baffle with said drain apertures therein in alignment with said drain spouts of said upper baffle, said lower baffle being adapted to engage the sidewalls and the end walls of the oil pan to form with the bottom panel thereof a lower sump chamber, valve support means secured within each of said drain spouts, and float valve means movably supported by said valve support means to extend into said lower sump chamber whereby said float valve means are adapted to open and close said drain apertures in response to the level of liquid in said lower sump chamber.