Softstart valve means

A valve device, soft start technology, applied in the direction of valve device, fluid pressure actuation device, valve operation/release device, etc., can solve problems such as non-implementation

Inactive Publication Date: 2008-09-17
FESTO AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this proved impractical under alternating operating conditions

Method used

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Examples

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Embodiment Construction

[0027] The first embodiment, visible from FIG. 1, and the second embodiment, visible from FIGS. 2 to 7, of the soft-start valve device generally designated by 1 are designed as valve units in which all components are configured according to Components are combined in a way. This facilitates installation at the point of use and, in particular, also facilitates the integration as a module into a modular pneumatic service device for the preparation of compressed air.

[0028] The soft-start valve device 1, which is also referred to as "soft-start valve" for simplicity, includes only a housing 2 represented by a dotted line in the embodiment of Fig. 1, on which an inlet joint 3 for fluid and a fluid outlet connector 4.

[0029] The inlet connection 3 belongs to the primary channel 5 extending inside the housing 2 and allows connection to a pressure source, not shown in detail, which supplies a pressure source at the primary pressure P 1 The pressure medium of the fluid below, in...

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PUM

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Abstract

A softstart valve means comprises a main valve member which is only switched over after a certain time from a closed position into an open position. The opening force required for switch over of the main valve member can be produced selectively in a manner dependent from pressure obtaining in a secondary duct or in a time dependent fashion. The respective operational mode can be selected by actuation of switch over means.

Description

technical field [0001] The invention relates to a soft-start valve device comprising a main valve element inserted between a primary channel and a secondary channel, the primary channel conveying pressure medium under primary pressure, the main valve element being closed by a closing force Preloaded or can be preloaded in the closed position breaking the connection between the primary channel and the secondary channel, and the main valve element can be switched to open the primary channel and the secondary channel by the opposite opening force against the closing force Open position of the connection between the channels, wherein, in the secondary pressure-controlled operating mode of the valve device, the opening force is derived from the secondary pressure built up in the secondary channel by the pressure medium, which is bypassing the main valve Under the condition of the element, it flows from the primary channel to the secondary channel through the throttling device. Ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/00F16K31/12F16K1/00F16K27/00
CPCF15B2211/30525F15B2211/7054F15B2211/75Y10T137/87233Y10T137/87201Y10T137/86936F15B2211/85F16K31/423F15B11/0406F15B2211/41509F15B11/042Y10T137/87209F15B2211/41527F15B13/0405F15B2211/40515F15B13/0426F15B2211/428F15B2211/455
Inventor A·德克
Owner FESTO AG & CO KG
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