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Valve device

A technology for valve devices and valve chambers, applied to valve devices, valve operation/release devices, valve details, etc., can solve problems such as damaged valve device working mode, large changes, and unforeseen problems, and achieve the effect of a simple method

Inactive Publication Date: 2005-12-28
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to its arrangement in the valve chamber of the valve device, the spring device can have unfavorable static and dynamic influences, which are caused by the working medium flowing through the valve chamber when the valve seat is opened, and in particularly unfavorable operating conditions. Condition significantly detrimental to the way the valve arrangement works
These influences are caused in particular by the flow in the valve chamber and act on the spring coils of the pressure spring and the deflection forces, which vary greatly over the entire operating range of the valve device and are difficult to reflect or cannot be predicted

Method used

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Embodiment Construction

[0014] A part of a solenoid-actuated valve arrangement is shown in simplified longitudinal section in FIG. 1 . The valve device has a valve element 5 which is movable longitudinally in the valve sleeve 2 and cooperates with a valve seat 4 formed in the valve body 3 .

[0015] The area of ​​the valve element 5 facing the valve seat 4 is located in a valve cavity 7 defined by the valve bushing 2 in the area of ​​the valve seat 4, the outer dimensions of which are further indicated by the rectangle shown in dotted lines in FIG. The area of ​​the valve element 5 within the valve chamber 7 has a first area 5A, a second cylindrical area 5B resting on the cylindrical area 5A and having a reduced diameter area, a frustoconical area connected to the second cylindrical area 5B. Region 5C, a third cylindrical region 5D adjoining the frustoconical region 5C and a dome-shaped region 5E adjoining the third cylindrical region 5D. The ball-shaped area 5E of the valve element 5 works together...

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Abstract

The valve device (1) has a valve element (5) which is movable longitudinally in the valve bushing (2) and cooperates with a valve seat (4) formed in the valve body (3). It can be operated in the closing direction of the valve seat (4) by an electromagnetic actuator. At least a part of the valve element (5) is arranged in a valve chamber (7) delimited by the valve bushing (2) in the region of the valve seat (4). According to the present invention, the inflow area (8) of the valve cavity (7) and the outflow area (9) of the valve cavity (7) are positioned relatively so that when the working fluid flows through the valve cavity (7), the The cavity (12, 13, 14, 16) to which the chamber (7) communicates, has the negative pressure required to evacuate the gas in the cavity (12, 13, 14, 16).

Description

technical field [0001] The invention relates to a valve arrangement according to the type further defined in the preamble of claim 1 . Background technique [0002] From DE 100 36 576 A1 there is known a solenoid-actuated valve or valve arrangement which can be used for control and regulation in a hydraulic vehicle brake system. The valve device has a valve sleeve with a longitudinal bore. Furthermore, the valve bushing is connected to a valve housing, in which the armature is arranged so as to be displaceable in the longitudinal direction. The armature is operatively connected to a valve pushrod or valve element guided longitudinally displaceably within the valve bushing. The effective connection between the valve element and the armature is such that the movement of the armature in the closing direction of the valve seat is transferred to the seat valve push rod with the closing member. [0003] The valve plunger is guided with small radial play over the entire length o...

Claims

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Application Information

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IPC IPC(8): B60T8/36F15D1/00F16K15/00F16K31/06
CPCF16K31/0655B60T8/363
Inventor H·施皮尔H·鲍尔B·布赫塔拉D·克拉策尔
Owner ROBERT BOSCH GMBH