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Valve body for expansion valve

A technology of expansion valve and valve body, applied in the direction of valve operation/release device, lift valve, valve device, etc., can solve the problems of complicated expansion valve and expensive design, and achieve simplified processing, small operation and assembly clearance, Effect of Tolerance Chain Reduction

Pending Publication Date: 2022-06-07
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, a disadvantage of the electronic expansion valves known from the prior art is that these expansion valves have a relatively complex, elaborate design and thus expensive construction

Method used

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  • Valve body for expansion valve
  • Valve body for expansion valve
  • Valve body for expansion valve

Examples

Experimental program
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Embodiment Construction

[0023] according to figure 1 , an expansion valve 2 according to the invention for an air conditioning system 3 , a battery cooler and / or an oil cooler of a motor vehicle 4 (see image 3 ) valve body 1 includes a valve needle 10 and a spring 5, wherein the valve needle 10 and the spring 5 according to the present invention are integrally formed. By means of a one-piece design, many parts can be reduced in particular, and thus storage and logistics costs as well as assembly costs can be reduced.

[0024] Due to the one-piece design of the valve body 1 , the tolerance chain can also be reduced, since the spring 5 and the valve needle 10 no longer need to be assembled together but are already produced in a solidly bonded state and thus do not require assembly of the spring on the valve body. Operational or assembly gaps that typically occur.

[0025] Here, according to Figure 1 to Figure 3 The spring 5 comprises two meander-shaped arms 6, 6' which are integrally connected to ...

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PUM

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Abstract

The invention relates to a valve body (1) for an expansion valve (2) of an air-conditioning system (3), a battery cooler and / or an oil cooler of a motor vehicle (4), comprising a valve needle (10) and a spring (5), the valve needle (10) and the spring (5) being integrally formed. As a result, it is possible to create a simple and cost-effective expansion valve (2).

Description

technical field [0001] The present invention relates to a valve body for an expansion valve of an air conditioning system of a motor vehicle. Furthermore, the invention relates to a rotor with such a valve body, an expansion valve with such a valve body and / or such a rotor, and an air conditioning system for a motor vehicle with such an expansion valve. Background technique [0002] The electrically actuated valve from EP 3 392 538 A1 has a rotor and a stator which is separated from the rotor by means of a separation tank. In order to detect the rotational angular position of the rotor, a sensor is provided. [0003] An expansion valve (also known as a throttle valve) is a valve that reduces the pressure of the fluid flowing through it by locally constricting the flow cross-section, resulting in an increase in volume or expansion. In air conditioning systems, especially in motor vehicles, such expansion valves reduce the pressure of the refrigerant that normally enters the...

Claims

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Application Information

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IPC IPC(8): F16K1/32F16K1/38F16K37/00F25B41/345
CPCF16K1/38F16K1/32F16K37/0041F25B41/345F16K37/0033F16K1/36F16K31/50F16K31/047F16K2200/305B60H2001/3286F16K31/084
Inventor 杰弗里·万德尔登马蒂亚斯·林登贝格弗洛里安·韦策尔
Owner MAHLE INT GMBH