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Electropneumatic servo valve with heat sink

A pneumatic guide, radiator technology, applied in the direction of valve heating/cooling devices, valve details, valve devices, etc., can solve the problem of insufficient heat removal, insufficient to ensure optimal operation of the device, etc.

Active Publication Date: 2014-01-15
ASCO JOUCOMATIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Unfortunately, these solutions proved insufficient to remove enough heat and to guarantee optimal operation of the device

Method used

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  • Electropneumatic servo valve with heat sink
  • Electropneumatic servo valve with heat sink
  • Electropneumatic servo valve with heat sink

Examples

Experimental program
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Embodiment Construction

[0025] Figure 1 to Figure 4 It is shown that an element made of a material with high thermal conductivity, called a heat sink 2 , is used to collect the heat flow and direct it by conduction. The radiator 2 is located between the electropneumatic pilot valve 1 and the metal body 3 of the pneumatic directional control valve 4 of the device according to the invention. The radiator 2 is housed in a space 5 provided between the electropneumatic pilot valve 1 and the metal body 3 of the pneumatic directional control valve 4 .

[0026] The heat sink 2 may be placed under pressure in order to ensure permanent contact between the opposing surfaces. The heat sink 2 may be made of an elastic or rigid material, or may be made by polymerization (or curing) of a liquid or pasty material ( figure 1 ).

[0027] Citable examples of heat sinks 2 include Bergquist Corporation's 1000 SF gasket, which has a thermal conductivity of 0.9 W / m-K tested according to ASTM D5470 and a thermal conduct...

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PUM

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Abstract

The invention relates to a pneumatic distribution device which includes at least one electromagnetic pilot valve (1) and a distribution body (3). The device includes at least one heat sink (2) having a thermal conductivity of at least 0.5 W / m K, tested in accordance with the ASTM D5470 standard. The heat sink is positioned between the at least one electromagnetic pilot valve (1) and the distribution body (3).

Description

Background technique [0001] The power of the compressed air to the brake cylinders and motor needs to be controlled. A directional control valve located between the source of pneumatic energy and the actuator performs this function. [0002] These pneumatic directional control valves typically require the use of electropneumatic pilot valves in order to enable the pneumatic directional control valves to switch states. These electropneumatic pilot valves are usually of the electromagnetic type and, due to the current passing through the induction coil, generate heat associated with the Joule effect. [0003] To limit this thermal effect, common sense is: limit the power of the coils, but then compromise the aerodynamic performance, or position the electropneumatic pilot valve in such a way that the heat of the electropneumatic pilot valve is removed directly to the outside. This configuration has severe restrictions on the pneumatic and electric connections, which have an imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K49/00
CPCF16K31/06F16K49/00F16K27/003Y10T137/6416
Inventor 理查德·万达姆米米歇尔·施密特
Owner ASCO JOUCOMATIC