Machine lubricant additive distribution systems and methods

Patent metadata

Field	Value
Publication number	US-10428703-B2
Application number	US-201715653581-A
Country	US
Kind code	B2
Filing date	Jul 19, 2017
Priority date	Jul 19, 2017
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

A lubrication system in a machine includes a sump to collect a bulk portion of lubricant and a pump adapted to circulate the lubricant from the sump through a lubricant line to an area of the machine for lubrication. The lubrication system also includes an oil filter disposed along the lubrication line adapted to filer the lubricant flowing through the lubricant line. The lubrication further includes an additive fixture in fluid flow communication with the oil filter adapted to house at least one additive material section and distribute the additive material in a lubrication flow circulation.

First claim

What is claimed is:

1. A lubrication system in a machine comprising:
a sump to collect a bulk portion of lubricant;
a pump adapted to circulate the lubricant from the sump through a lubricant line to an area of the machine for lubrication;
an oil filter disposed along the lubrication line adapted to filter the lubricant flowing through the lubricant line; and
an additive fixture in fluid flow communication with the oil filter adapted to house at least one additive material section and distribute the additive material in a lubrication flow circulation;
wherein the additive fixture is integrated into a lubricant dipstick of the machine, and
wherein the additive material is replenishable independently from the oil filter.

2. The lubrication system of claim 1 wherein the additive fixture further comprises a mesh basket removably disposed within a housing of the oil filter, the mesh basket being sized to house a plurality of additive material sections.

3. The lubrication system of claim 1 wherein the additive fixture includes a first port in fluid connection with a lubricant passage of a cylinder block of the machine and a second port in fluid connection with an oil filter block of the machine.

4. The lubrication system of claim 1 wherein the additive fixture is disposed along an oil supply line downstream of the oil filter.

5. The lubrication system of claim 1 wherein the additive fixture includes an insertion port arranged to receive the at least one additive material section.

6. The lubrication system of claim 1 wherein the at least one additive material section includes at least one of a pellet, a fluid volume, a gel volume, a gel pack, a capsule, and a powder.

7. The lubrication system of claim 1 wherein the additive fixture includes an internal cavity having a swirl chamber to circulate lubricant fluid flow about the at least one additive material segment.

8. A method of dispensing additive material to a lubricant comprising:
circulating a lubricant through a machine;
providing a lubricant filter in a lubricant fluid circuit to filter a contaminant from the lubricant;
providing an additive fixture along the lubricant fluid circuit to distribute an additive material to modify a chemical property of the lubricant, wherein the additive fixture is integrated into a lubricant dipstick having a portion disposed in an oil sump of the machine, and wherein the additive material is replenishable independently from the oil filter;
monitoring at least one lubricant property; and
in response to the lubricant property exceeding a predetermined threshold, generating a signal indicative of a need to replenish the additive material.

9. The method of claim 8 the additive material is at least one of a friction modifier, an antioxidant, and an anti-foamant agent.

10. The method of claim 8 further comprising replacing the additive fixture with a second additive fixture having replenished additive materials.

11. The method of claim 8 inserting additive material into an internal cavity of the additive fixture.

12. The method of claim 8 wherein the additive fixture comprises a mesh basket disposed within the lubricant filter.

13. The method of claim 8 wherein the additive fixture is disposed along a lubricant supply line downstream of the lubricant filter.

14. An engine for a motor vehicle comprising:
at least one combustion cylinder within a cylinder block;
a reciprocating piston arranged to cycle within each of the combustion cylinders to generate an engine torque;
a lubrication system arranged to circulate a lubricant about components of the cylinder block;
an oil filter in fluid flow communication with the lubrication system; and
an additive fixture integrated into a lubricant dipstick and disposed between the oil filter and the lubrication system, wherein the additive fixture houses at least one additive material section in contact with a lubricant flow;
wherein the additive material is replenishable independently from the oil filter; and
wherein the lubricant dipstick includes a handle portion, a middle portion, and a lower portion, wherein the lower portion extends to an oil sump portion of the engine.

15. The engine of claim 14 wherein the additive fixture includes a first port in fluid connection with a fluid passage of the cylinder block, and a second port in fluid connection with the oil filter.

16. The engine of claim 14 wherein the additive fixture is disposed along an oil supply line downstream of the oil filter.

17. The engine of claim 14 wherein the additive fixture includes an insertion port arranged to receive the at least one additive material section.

18. The engine of claim 14 wherein the at least one additive material section includes at least one of a pellet, a fluid volume, a gel volume, a gel pack, a capsule, and a powder.

19. The engine of claim 14 wherein the additive fixture includes an internal cavity having swirl chamber to circulate lubricant fluid flow about the at least one additive material section.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Viola Michael B
• Schneider Eric W

Classifications

• F01M11/0004

  Oilsumps · CPC title

• F01M11/03

  Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means (filters B01D) · CPC title

• F01M11/10

  Indicating devices; Other safety devices · CPC title

• F01M2011/0033

  with special means for guiding the return of oil into the sump · CPC title

• F01M1/10

  Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters · CPC title