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By-pass valve for heat exchanger

A technology for bypass valves and heat exchangers, applied in the direction of instruments, lift valves, valve devices, etc., can solve the problems of excessive valve leakage, high cost, low heat transfer efficiency, etc.

Inactive Publication Date: 2010-10-27
DANA CANADA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are deficiencies in many existing solutions including, for example, excessive valve leakage, valve sticking, inefficient heat transfer, and / or high cost

Method used

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  • By-pass valve for heat exchanger
  • By-pass valve for heat exchanger
  • By-pass valve for heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] first reference figure 1 , which shows a bypass valve generally indicated at 14 . Bypass valve 14 may be used in the heat exchanger circuit to control fluid flow to heat exchanger 12 to which first and second conduits 28 and 32 are connected. Conduits 28, 32 are connected to the inlet and outlet in bypass valve 14, as will be described below. Conduits 34, 36 are also connected to ports in bypass valve 14, as will be described below. Because the four conduits 28, 32, 34 and 36 are connected to the bypass valve 14, the bypass valve 14 is referred to as a four-port bypass valve.

[0033] now refer to Figure 1-4 , the bypass valve 14 has a housing 46 in which a first hole 48 , a second hole 54 and a third hole 55 are connected in series and are coaxial. In an embodiment, housing 46 is made of a moldable material, such as a plastic material, which may be a thermoplastic or a thermoset material, and may include reinforcement, such as fiberglass or particulate reinforceme...

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PUM

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Abstract

A valve including a housing defining first and second bores and a peripheral valve seat. An actuator in the first bore has a reciprocating seal for engaging the valve seat. A coiled return spring urges the reciprocating seal towards the chamber to open the valve, the return spring having a first end connected to the reciprocating seal and a second end engaging a spring support in the housing facing the first bore. In at least one embodiment, the return spring has a larger diameter at its second end than its first end.

Description

technical field [0001] The present invention relates to heat exchangers, and more particularly to bypass valves for bypassing heat exchangers in heat exchange circuits when the heat transfer function of the heat exchanger is not required or is only intermittently required. Background technique [0002] In some applications, such as in the automotive industry, heat exchangers are used to cool or heat specific fluids, such as engine oil or transmission fluid or oil. For example in the case of transmission fluid, a heat exchanger is used to cool the transmission fluid. The heat exchanger is usually located remotely from the transmission and receives hot transmission oil from the transmission through a supply line, cools it, and returns it to the transmission again through a return line. However, when the transmission is cold, such as in a cranking situation, the transmission fluid is very viscous and does not flow easily, if at all, through the heat exchanger. In this case, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F27/02F16K31/64F16K1/32
CPCF01M1/20F16K31/002G05D23/022F16K27/0263F01P2060/045F01M5/007G05D23/1333
Inventor M·S·科兹德拉斯J·谢泼德R·阿伦戴恩S·托内拉托D·贝蒂奥
Owner DANA CANADA CORP