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Automatic Transmission Fluid Thermal Regulation System

A technology of flow regulator and temperature control system, used in transmission parts, liquid cooling, engine components, etc., can solve problems such as affecting the lubrication performance of transmission fluid, and achieve the effect of increasing fuel economy

Active Publication Date: 2019-12-10
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At elevated temperatures, however, the transmission fluid undergoes effects such as oxidation, which can affect the lubricating properties of the transmission fluid

Method used

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  • Automatic Transmission Fluid Thermal Regulation System
  • Automatic Transmission Fluid Thermal Regulation System
  • Automatic Transmission Fluid Thermal Regulation System

Examples

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Embodiment Construction

[0015] Specific embodiments of the invention are required to be disclosed herein; however, it is to be understood that the embodiments disclosed herein are merely exemplary of the invention which may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

[0016] In many motor vehicle engine implementations, two separate coolant circuits are provided. One loop is the cryogenic loop, which is designed to maintain relatively low temperatures in components that are more sensitive to high temperatures. Another loop is the high temperature loop, which is designed to maintain relatively high temperatures in components that are less sensitive...

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Abstract

A vehicle cooling system includes an internal combustion engine, a transmission with a cooler, a coolant pump, a first coolant cycle, a second coolant cycle, and a flow regulator. A first coolant circuit fluidly connects the coolant pump to the engine and back to the coolant pump. A second coolant circuit fluidly connects the coolant pump to the transmission cooler bypassing the engine and back to the coolant pump. The flow regulator is configured to selectively restrict coolant flow through the second coolant cycle.

Description

technical field [0001] The present invention relates to temperature control systems for vehicles, and in particular, to cooling automatic transmissions. Background technique [0002] Automatic transmissions include intermeshing gear elements that can be lubricated by an oil known as automatic transmission fluid, or ATF. During continued vehicle operation, the temperature of the transmission fluid becomes elevated due to friction from meshing gear elements and other sources. At elevated temperatures, however, the transmission fluid undergoes effects such as oxidation, which can affect the lubricating properties of the transmission fluid. [0003] Accordingly, an automatic transmission may be provided with a heat exchanger in fluid communication with the transmission. The heat exchanger may be referred to as a transmission cooler. The transmission cooler can be an oil / air cooler or a water / oil cooler. In vehicles with a water / oil cooler, the transmission cooler can be inte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/04
CPCF16H57/0413F16H57/04F01P3/20F01P7/161F01P7/165F01P11/08F01P2060/045F01P2060/12F01P2060/18
Inventor 詹姆斯·托马斯·古登迈克尔·约瑟夫·吉安达大卫·柯蒂斯·艾夫斯
Owner FORD GLOBAL TECH LLC
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