CA2372296A1 - Vehicle lubricant temperature control - Google Patents

Vehicle lubricant temperature control Download PDF

Info

Publication number
CA2372296A1
CA2372296A1 CA002372296A CA2372296A CA2372296A1 CA 2372296 A1 CA2372296 A1 CA 2372296A1 CA 002372296 A CA002372296 A CA 002372296A CA 2372296 A CA2372296 A CA 2372296A CA 2372296 A1 CA2372296 A1 CA 2372296A1
Authority
CA
Canada
Prior art keywords
liquid
heat exchanger
cooling
engine
lubricant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002372296A
Other languages
French (fr)
Other versions
CA2372296C (en
Inventor
Dennis Langervik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo Group North America LLC
Original Assignee
Volvo Trucks North America Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volvo Trucks North America Inc filed Critical Volvo Trucks North America Inc
Publication of CA2372296A1 publication Critical patent/CA2372296A1/en
Application granted granted Critical
Publication of CA2372296C publication Critical patent/CA2372296C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/40—Oil temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2050/00—Applications
    • F01P2050/02—Marine engines
    • F01P2050/06—Marine engines using liquid-to-liquid heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F01P2060/045—Lubricant cooler for transmissions

Abstract

An oil cooling system is disclosed in the environment of an over the road vehicle having a transmission and an internal combustion engine. A
primary liquid to liquid heat exchanger is connected to the engine cooling system and connected to a selected on of, or both, an engine lubricant system and the transmission for cooling circulation of oil. An auxiliary heat exchanger is connected in parallel with the primary heat exchanger for selective additional cooling circulation of the oil.

Claims (21)

1. In a vehicle having a transmission and an internal combustion engine equipped with an engine cooling system, a fluid cooling system comprising:
a) a liquid to liquid heat exchanger connected to the engine cooling system and connected to a selected one of an engine lubricant system and a transmission liquid system for cooling circulation of a system liquid from the selected one through the liquid to liquid heat exchanger;
b) a cooling fluid to liquid heat exchanger connected to said selected one and adapted to receive said cooling fluid for cooling circulation of the selected system liquid; and, c) the heat exchangers being connected to the selected system in parallel.
2. The cooling system of claim 1, wherein the selected system liquid is engine lubricant.
3. The cooling system of claim 2, wherein the cooling fluid is air.
4. The cooling system of claim 2, wherein the cooling fluid is a liquid.
5. The cooling system of claim 1, wherein the system liquid is transmission oil.
6. The cooling system of claim 5, wherein the cooling fluid is air.
7. The cooling system of claim 5, wherein the cooling fluid is a liquid.
8. The cooling system of claim 1, wherein the cooling fluid is air.
9. The cooling system of claim 1, wherein the cooling fluid is a liquid.
10. The cooling system of claim 1, wherein the system liquid is circulated through the cooling fluid to liquid heat exchanger when such system liquid exits the liquid to liquid heat exchanger at a temperature in excess of a predetermined temperature.
11. The cooling system of claim 1, wherein the system liquid in such system is prevented from flowing through the cooling fluid to liquid heat exchanger when the system liquid exits the liquid to liquid heat exchanger at a temperature below a predetermined temperature.
12. In an over the highway truck or tractor, an engine lubricant cooling system comprising:
a) a liquid to liquid heat exchanger connected to an engine cooling system for circulating engine coolant through the liquid to liquid heat exchanger;
b) the liquid to liquid heat exchanger also being connected to an engine lubricant system for circulating lubricant through the liquid to liquid heat exchanger for cooling such lubricant;
c) an air to liquid heat exchanger connected to the lubricant system for circulating lubricant through the air to liquid heat exchanger for further cooling of such lubricant;
d) the air to liquid heat exchanger also being positioned to receive a flow of cooling air therethrough when the vehicle is in operation; and e) the heat exchangers being connected in parallel.
13. The cooling system of claim 10, wherein the lubricant is circulated through the air to liquid heat exchanger when such lubricant exits the liquid to liquid heat exchanger at a temperature in excess of a predetermined temperature.
14. The cooling system of claim 11, wherein the lubricant is prevented from flowing through the air to liquid heat exchanger when the lubricant exits the liquid to liquid heat exchanger at a temperature below a predetermined temperature.
15. A vehicle comprising:
a) a power train including an internal combustion engine and a transmission;
b) the engine including a cooling system for circulating liquid coolant through the engine to maintain engine operating temperatures within a predetermined operating range;
c) the engine also including an oil pan and a lubricant circulating system for circulating lubricating oil from the pan through the engine and return;
d) the transmission including a transmission oil system for lubricating transmission gears;
e) a primary heat exchanger connected to the cooling system and a selected one of the engine and transmission for cooling circulation of oil through the primary heat exchanger; and f) an auxiliary heat exchanger connected to said selected one in parallel with the primary heat exchanger.
16. The vehicle of claim 15, wherein the selected one is the engine.
17. The vehicle of claim 15, wherein the selected one is the transmission.
18. The vehicle of claim 15, wherein the auxiliary heat exchanger is cooled by a flow of air.
19. The vehicle of claim 15, wherein the auxiliary heat exchanger is cooled by a flow of liquid coolant from an auxiliary source.
20. The vehicle of claim 15, wherein a temperature sensor senses the temperature of oil exiting the primary heat exchanger and a sensor controlled valve enables oil flow through the auxiliary heat exchanger when the sensored temperature exceeds a predetermined level and disables flow through the auxiliary heat exchanger when the sensed temperature is below the predetermined level.
21. The combination of claim 15 wherein the vehicle is a heavy duty over the highway truck or tractor.
CA2372296A 2001-02-20 2002-02-19 Vehicle lubricant temperature control Expired - Fee Related CA2372296C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/789,032 2001-02-20
US09/789,032 US6536381B2 (en) 2001-02-20 2001-02-20 Vehicle lubricant temperature control

Publications (2)

Publication Number Publication Date
CA2372296A1 true CA2372296A1 (en) 2002-08-20
CA2372296C CA2372296C (en) 2012-01-03

Family

ID=25146363

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2372296A Expired - Fee Related CA2372296C (en) 2001-02-20 2002-02-19 Vehicle lubricant temperature control

Country Status (3)

Country Link
US (1) US6536381B2 (en)
CA (1) CA2372296C (en)
MX (1) MXPA02001769A (en)

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Also Published As

Publication number Publication date
US6536381B2 (en) 2003-03-25
CA2372296C (en) 2012-01-03
MXPA02001769A (en) 2003-08-20
US20020112679A1 (en) 2002-08-22

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EEER Examination request
MKLA Lapsed

Effective date: 20160219