# US 12,247,503 B2 · Engine oil starvation preventer

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- Number: US 12,247,503 B2
- Document ID: US12247503B2
- Status: Granted
- Kind: B2
- Application number: 18/313,800
- Filed: 2023-05-08
- Published: 2023-11-09
- Granted: 2025-03-11
- Earliest claimed: 2022-05-06
- Applicants: Robby Gordon
- Inventors: Robby Gordon
- Web page: https://patentgrep.com/patent/US12247503B2

## CPC

- F01M 11/0004: {Oilsumps}
- F01M 11/067: {inverted, e.g. for inverted flight}
- F01M 11/0408: {Sump drainage devices, e.g. valves, plugs}
- F01M 2011/0041: {for accommodating movement or position of engines}
- F01M: LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING

## Abstract

An apparatus and methods for the lubrication of the engine of an off-road vehicle, such as when the vehicle is airborne or upside down due to tipping over. The apparatus includes an upper chamber and a lower chamber. Fluid communication is established between the upper chamber and the lower chamber by way of a central tube. One or more vanes are arranged in the interior of the central tube to inhibit oil flow from the lower chamber to the upper chamber when the vehicle is upside down. An inlet hose connector is configured for receiving engine oil from an oil cooler and supplying the engine oil to the lower chamber. An outlet hose connector is configured for conducting the engine oil from the lower chamber to the engine. A bypass hose connector is configured for allowing the engine oil to exit from the upper chamber to the engine.

## Claims

### Claim 1

An apparatus for lubricating an engine of an off-road vehicle, the apparatus comprising:
an upper chamber and a lower chamber;
a separator disposed between the upper chamber and the lower chamber;
an inlet hose connector for supplying engine oil to the lower chamber;
an outlet hose connector for conducting the engine oil from the lower chamber to an engine;
a bypass hose connector for allowing engine oil to exit from the upper chamber to the engine;
a fill chamber atop the upper chamber;
a base at a bottom of the lower chamber; and
a central tube extending from the base, through the separator, and opening into the fill chamber,
wherein the inlet hose connector and the bypass hose connector are configured in the fill chamber.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein a fill cap is disposed atop the fill chamber for adding engine oil and removing trapped air within the upper chamber.

### Claim 3 (depends on 2)

The apparatus of claim 2, wherein a drain plug is threaded into a bottom of the base for draining oil.

### Claim 4 (depends on 1)

The apparatus of claim 1, wherein a portion of the central tube within the lower chamber has openings in a side wall of the central tube for fluid communication between the lower chamber and an interior of the central tube; and wherein a portion of the central tube within the upper chamber has openings in the side wall for fluid communication between the upper chamber and the interior of the central tube.

### Claim 5 (depends on 4)

The apparatus of claim 4, wherein the interior of the central tube provides fluid communication between the upper chamber and the lower chamber.

### Claim 6 (depends on 5)

The apparatus of claim 5, wherein one or more vanes are disposed in the interior of the central tube to inhibit oil flow from the lower chamber to the upper chamber.

### Claim 7 (depends on 1)

The apparatus of claim 1, wherein a baffle plate is disposed in the upper chamber to inhibit oil flow from a bottom to a top of the upper chamber during a tip-over of the off-road vehicle.

### Claim 8 (depends on 1)

The apparatus of claim 1, wherein the upper chamber is housed within an upper canister and the lower chamber is housed within a lower canister.

### Claim 9 (depends on 8)

The apparatus of claim 8, wherein the upper canister and the lower canister are respectively joined together by an upper flange and a lower flange.

### Claim 10 (depends on 1)

The apparatus of claim 1, wherein the inlet hose connector is configured to be coupled with a hose for delivering low-temperature oil from an oil cooler.

### Claim 11 (depends on 10)

The apparatus of claim 10, wherein the outlet hose connector is configured to be coupled with a hose for routing the low-temperature oil to the engine.

### Claim 12 (depends on 11)

The apparatus of claim 11, wherein the bypass hose connector is configured to be coupled with a hose for routing the low-temperature oil to the engine during a tip-over of the off-road vehicle.