Reversible oil pan for an internal combustion engine

Patent metadata

Field	Value
Publication number	US-12595756-B2
Application number	US-202218567113-A
Country	US
Kind code	B2
Filing date	May 16, 2022
Priority date	Jun 10, 2021
Publication date	Apr 7, 2026
Grant date	Apr 7, 2026

Abstract

An oil pan for an engine comprises a containment portion of unitary construction. The containment portion has a circumferential component defining a circumferential extent of the containment portion and comprising a pair of mutually opposing side walls. The containment portion also comprises a base wall extending inwardly from a first portion of the circumferential component and defining a lower extent of the containment portion. The oil pan also comprises an attachment portion comprising an attachment surface at a second portion of the circumferential component; a first plug portion on an interior of a first one of the pair of mutually opposing side walls at a first location; and a second plug portion on an interior of a second one of the pair of mutually opposing side walls at a second location. The first and second plug portions are configured to receive an oil syphon connector and the attachment portion has a rotational symmetry such that the attachment surface is connectable to an engine block in a first orientation and in a second orientation. The first and second plug portions are located such that an oil tube having a fixed location relative to the engine block aligns adjacent the first plug portion on attachment of the attachment portion to the engine block in the first orientation and aligns adjacent the second plug portion on attachment of the attachment portion to the engine block in the second orientation.

First claim

The invention claimed is:

1 . An oil pan for an engine comprising:
a containment portion of unitary construction, the containment portion including:
a circumferential component defining a circumferential extent of the containment portion and comprising a pair of mutually opposing side walls, and
a base wall extending inwardly from a first portion of the circumferential component and defining a lower extent of the containment portion; and
an attachment portion, the attachment portion including:
an attachment surface at a second portion of the circumferential component,
a first plug portion on an interior of a first one of the pair of mutually opposing side walls at a first location, and
a second plug portion on an interior of a second one of the pair of mutually opposing side walls at a second location,
wherein the first and second plug portions each include a first finger that extends radially inwardly from the circumferential component and extends in a direction substantially perpendicular to the attachment surface, the first finger having a wedge component that tapers outwardly as it extends radially inwardly and/or tapers outwardly as it extends towards the base, wherein the first and second plug portions are configured to receive an oil syphon connector, wherein the attachment portion has a rotational symmetry such that the attachment surface is connectable to an engine block in a first orientation and in a second orientation, and wherein the first and second plug portions are located such that an oil tube having a fixed location relative to the engine block aligns adjacent the first plug portion on attachment of the attachment portion to the engine block in the first orientation and aligns adjacent the second plug portion on attachment of the attachment portion to the engine block in the second orientation.

2 . An oil pan for an engine comprising:
a containment portion of unitary construction, the containment portion being elongate and including:
a circumferential component defining a circumferential extent of the containment portion and having a pair of mutually opposing long side walls and a pair of mutually opposing short side walls, and
a base wall extending inwardly from a first portion of the circumferential component and defining a lower extent of the containment portion and an upper extent of the containment portion, and
an attachment portion, the attachment portion including:
an attachment surface at a second portion of the circumferential component,
a first plug portion on an interior of a first one of the pair of mutually opposing long side walls at a first location,
a second plug portion on an interior of a second one of the pair of mutually opposing long side walls at a second location, and

a pillar adjacent the first plug portion that projects upward from the base wall in the upper extent of the containment portion,
wherein the attachment portion has a rotational symmetry such that the attachment surface of the attachment portion is connectable to an engine block in a first orientation and in a second orientation of the oil pan, wherein the first and second plug portions are configured to separately receive an oil syphon connector, the oil syphon connector being only receivable on the first plug portion in the first orientation, and the oil syphon connector being only receivable on the second plug portion in the second orientation, and wherein the first plug portion has a first finger that extends inward from the circumferential component.

3 . The oil pan according to claim 2 , wherein the pillar is freestanding and is not in direct contact with the circumferential component.

4 . The oil pan according to claim 2 , wherein the pillar has a surface and an alignment pin projecting upward from the surface.

5 . The oil pan according to claim 2 , wherein the pillar has a plurality of fins extending radially outward from a main body thereof.

6 . The oil pan according to claim 2 , wherein a maximum height to which the pillar reaches is less than a maximum height to which the first finger reaches.

7 . The oil pan according to claim 2 , wherein the first plug portion includes a lip extending from the interior surface of the first one of the pair of mutually opposing side walls, the lip having an upper surface that is perpendicular to the interior surface of the first side wall.

8 . The oil pan according to claim 2 , further comprising another pillar adjacent the second plug portion that projects upward from the base wall in the lower extent of the containment portion.

9 . The oil pan according to claim 2 , wherein the first plug portion is at least partially between a pair of a plurality of inwardly extending ribs of the circumferential component.

10 . The oil pan according to claim 2 , wherein the second plug portion has a first finger of same or different configurations as the first finger of the first plug portion.

11 . The oil pan according to claim 2 , wherein the first plug portion has a plurality of fingers, including the first finger, spaced apart from each other in a length direction of the oil pan.

12 . The oil pan according to claim 2 , wherein the first and second plug portions are located such that an oil tube having a fixed location relative to the engine block aligns adjacent the first plug portion on attachment of the attachment portion to the engine block in the first orientation and aligns adjacent the second plug portion on attachment of the attachment portion to the engine block in the second orientation.

13 . An oil receptacle comprising:
a containment portion including:
a circumferential wall defining a circumferential extent of the containment portion and comprising a pair of mutually opposing side walls, and
a base wall extending inwardly from a first portion of the circumferential wall and defining a lower extent of the containment portion; and
an attachment portion including:
an attachment surface at a second portion of the circumferential wall,
a first plug portion on an interior of a first one of the pair of mutually opposing side walls at a first location,
a second plug portion on an interior of a second one of the pair of mutually opposing side walls at a second location different from the first location, and
a pillar adjacent the first plug portion that projects upward from the base wall in the upper extent of the containment portion,

wherein the first plug portion has a first finger that extends radially inwardly,
wherein the first and second plug portions are configured to individually receive an oil syphon connector,
wherein the attachment portion has a rotational symmetry such that the attachment surface is connectable to an engine block in a first orientation and separately in a second orientation of the oil receptacle,
wherein the pillar has a surface and an alignment pin projecting upward from the surface, and
wherein the pillar has a plurality of fins extending radially outward from a main body thereof.

14 . The oil receptacle according to claim 13 , wherein the pillar is freestanding and is not in direct contact with the circumferential wall.

15 . The oil receptacle according to claim 13 , wherein a maximum height to which the pillar reaches is less than a maximum height to which the first finger reaches.

16 . The oil receptacle according to claim 13 , wherein the first plug portion includes a lip extending from the interior surface of the first one of the pair of mutually opposing side walls, the lip having an upper surface that is perpendicular to the interior surface

Assignees

• Caterpillar Inc

Inventors

• Walters Dean W
• Klobuchar Grant M

Classifications

• F01M2011/0416

  Plugs · CPC title

• F01M2011/0091

  characterised by used materials · CPC title

• F01M2011/007

  Oil pickup tube to oil pump, e.g. strainer · CPC title

• F01M2011/0054

  Fastening to the cylinder block · CPC title

• F01M11/0408

  Sump drainage devices, e.g. valves, plugs · CPC title