IP Library Granted Patent US 8,196,559
Granted Patent B2
US 8,196,559 · App. 12/578,798 · Granted Jun 12, 2012

Method and apparatus to remove a fluidic contaminant from lubricating oil

Assignee: GM Global Technology Operations LLC
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Quick Facts
Patent No.
US 8,196,559
App. No.
12/578,798
Granted
Jun 12, 2012
Kind
B2
Abstract

A device for removing a fluidic contaminant from lubricating oil in an internal combustion engine includes a fluid absorbing element comprising a mounting element and a fluid absorption media assembled into a sump of a crankcase of the internal combustion engine. The fluid absorbing element is immersed within the oil contained in the sump when the engine is not operating. The fluid absorption media is configured to absorb a fluidic contaminant in the engine oil when the engine is not operating and to desorb the absorbed fluidic contaminant.

Claims (17)

1. A device for removing a fluidic contaminant from lubricating oil in an internal combustion engine, comprising:

a fluid absorbing element comprising a mounting element and a fluid absorption media assembled into a sump of a crankcase of the internal combustion engine,

the fluid absorbing element immersed within the oil contained in the sump when the engine is not operating;

the fluid absorption media configured to absorb a fluidic contaminant in the engine oil when the engine is not operating; and

the fluid absorption media configured to desorb the absorbed fluidic contaminant.

2. The device of claim 1 , wherein the fluid absorption media is configured to desorb the absorbed fluidic contaminant when the engine is operating.

3. The device of claim 2 , wherein the absorbed fluidic contaminant desorbs when the engine oil achieves an evaporative temperature of the absorbed fluidic contaminant.

4. The device of claim 2 , further comprising the engine including a positive crankcase ventilation system configured to circulate the desorbed fluidic contaminant into an intake system of the engine when the engine is operating.

5. The device of claim 1 , wherein the fluid absorption media comprises silica.

6. The device of claim 1 , wherein the fluid absorption media comprises alumina.

7. A method for removing a fluidic contaminant from engine oil in an internal combustion engine, comprising:

assembling a fluid absorbing element into a sump of a crankcase of the internal combustion engine, the fluid absorbing element immersed in the engine oil contained in the sump when the engine is not operating;

absorbing a fluidic contaminant in the engine oil onto the fluid absorbing element; and

desorbing the absorbed fluidic contaminant contained on the fluid absorbing element.

8. The method of claim 7 , comprising absorbing the fluidic contaminant in the engine oil onto the fluid absorbing element during a period when the engine is not operating.

9. The method of claim 7 , comprising desorbing the absorbed fluidic contaminant from the fluid absorbing element when the engine is operating.

10. The method of claim 9 , wherein desorbing the absorbed fluidic contaminant from the fluid absorbing element when the engine is operating further comprises circulating the desorbed fluidic contaminant into an intake system of the engine using a positive crankcase ventilation system.

Assignments (8)
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2014
From: WILMINGTON TRUST COMPANY
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 034287/0001 →
CHANGE OF NAME Recorded Feb 10, 2011
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 025781/0299 →
SECURITY AGREEMENT Recorded Nov 8, 2010
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: WILMINGTON TRUST COMPANY
Reel/Frame 025324/0555 →
RELEASE OF SECURITY INTEREST Recorded Nov 5, 2010
From: UAW RETIREE MEDICAL BENEFITS TRUST
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025315/0091 →
RELEASE OF SECURITY INTEREST Recorded Nov 4, 2010
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025246/0234 →
SECURITY AGREEMENT Recorded Feb 25, 2010
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 023989/0155 →
SECURITY AGREEMENT Recorded Feb 25, 2010
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UAW RETIREE MEDICAL BENEFITS TRUST
Reel/Frame 023990/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 21, 2009
From: MORDUKHOVICH, GREGORY; LINDEN, JAMES L.; MANCE, ANDREW M.
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023681/0217 →
Continuity (1)
Related Publication 20110083650A1 · Apr 14, 2011