IP Library › Granted Patent US 9,702,282
Granted Patent B2
US 9,702,282 · App. 15/110,869 · Granted Jul 11, 2017

Crankcase ventilation system heater

Inventors: Lee A. Peck (Stoughton, WI); Arun P. Janakiraman (Stoughton, WI)
Assignee: CUMMINS FILTRATION IP, INC.
F01M13/04F01M2013/0438F01M2013/0472
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Quick Facts
Patent No.
US 9,702,282
App. No.
15/110,869
Granted
Jul 11, 2017
Kind
B2
Abstract

A crankcase ventilation system having a heat transfer conduit included therein. The system includes a housing and a crankcase ventilation filter element within the housing, the crankcase ventilation filter element configured to separate oil and oil aerosol from blow-by gases from a crankcase. An oil inlet is configured to receive pressurized oil from a component of an internal combustion engine. The conduit is positioned within the housing. The conduit is positioned along a length of the housing and is configured to carry the pressurized oil from the oil inlet to a component of the crankcase ventilation system. The conduit is configured to transfer thermal energy from the pressurized oil to the housing. An oil outlet is configured to return the pressurized oil to the crankcase.

Claims (31)

1. A crankcase ventilation system comprising:

a housing;

a crankcase ventilation filter element within the housing, the crankcase ventilation filter element configured to separate oil and oil aerosol from blow-by gases from a crankcase;

an oil inlet configured to receive pressurized oil from a component of an internal combustion engine;

a conduit positioned within the housing and positioned along a length of the housing, the conduit configured to carry the pressurized oil from the oil inlet to a component of the crankcase ventilation system, wherein the conduit is configured to transfer thermal energy from the pressurized oil to the housing; and

an oil outlet configured to return the pressurized oil to the crankcase.

2. The crankcase ventilation system of claim 1 , wherein the conduit is semi-circular in shape.

3. The crankcase ventilation system of claim 1 , wherein the component is a pelton wheel, wherein the pelton wheel is configured to rotationally drive the crankcase ventilation filter element.

4. The crankcase ventilation system of claim 1 , wherein the component is a motive jet nozzle.

5. The crankcase ventilation system of claim 4 , wherein the motive jet nozzle is configured to form a high velocity motive jet of the pressurized oil, and wherein the high velocity motive jet is directed into the oil outlet and creates a pumping effect which suctions and pumps the separated oil from the blow-by gases out of the oil outlet.

6. The crankcase ventilation system of claim 1 , wherein the conduit is lined with copper.

7. The crankcase ventilation system of claim 1 , wherein the conduit includes internal ribs configured to increase a surface area in contact with pressurized oil routed through the conduit, thereby increasing the thermal energy transfer from the pressurized oil to the housing.

8. The crankcase ventilation system of claim 1 , wherein the conduit includes sinusoidal flow channels that create oscillatory flows of the pressurized oil within the conduit.

9. The crankcase ventilation system of claim 1 , further comprising an insert positioned within the conduit.

10. The crankcase ventilation system of claim 9 , wherein the insert includes a plurality of openings and a plurality of fins that cause turbulence in the pressurized oil flowing through the conduit, thereby increasing the thermal energy transfer from the pressurized oil to the housing.

11. The crankcase ventilation system of claim 10 , wherein the fins extend to and contact an inner wall of the conduit.

12. A housing for a crankcase ventilation system, the housing comprising:

a cavity configured to house a crankcase ventilation filter element within the housing;

an oil inlet configured to receive pressurized oil from a component of an internal combustion engine;

a conduit positioned within the housing and positioned along a length of the housing, the conduit configured to carry the pressurized oil from the oil inlet to a component of the crankcase ventilation system, wherein the conduit is configured to transfer thermal energy from the pressurized oil to the housing; and

an oil outlet configured to return the pressurized oil to the crankcase.

13. The housing of claim 12 , wherein the conduit is semi-circular in shape.

14. The housing of claim 12 , wherein the component is a pelton wheel, and wherein the pelton wheel is configured to rotationally drive the crankcase ventilation filter element when the crankcase ventilation filter element is installed within the cavity.

15. The housing of claim 12 , wherein the component is a motive jet nozzle.

16. The housing of claim 15 , wherein the motive jet nozzle is configured to form a high velocity motive jet of the pressurized oil, and wherein the high velocity motive jet is directed into the oil outlet and creates a pumping effect which suctions and pumps the separated oil from the blow-by gases out of the oil outlet.

17. The housing of claim 12 , wherein the conduit is lined with copper.

18. The housing of claim 12 , wherein the conduit includes internal ribs configured to increase a surface area in contact with pressurized oil routed through the conduit, thereby increasing the thermal energy transfer from the pressurized oil to the housing.

19. The housing of claim 12 , wherein the conduit includes sinusoidal flow channels that create oscillatory flows of the pressurized oil within the conduit.

20. The housing of claim 12 , further comprising an insert positioned within the conduit.

21. The housing of claim 20 , wherein the insert includes a plurality of openings and a plurality of fins that cause turbulence in the pressurized oil flowing through the conduit, thereby increasing the thermal energy transfer from the pressurized oil to the housing.

22. The housing of claim 21 , wherein the fins extend to and contact an inner wall of the conduit.

Assignments (2)
CHANGE OF NAME Recorded Dec 29, 2025
From: CUMMINS FILTRATION IP, INC.
To: ATMUS FILTRATION IP INC.
Reel/Frame 074103/0645 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 11, 2016
From: PECK, LEE A.; JANAKIRAMAN, ARUN P.
To: CUMMINS FILTRATION IP, INC.
Reel/Frame 039125/0548 →
Continuity (2)
Provisional Application 61927281 · Jan 14, 2014
Related Publication 20160333754A1 · Nov 17, 2016