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adjustable solenoid valve

A solenoid valve and adjustable technology, applied in the field of solenoid valve, can solve problems such as consumption adjustment process

Active Publication Date: 2020-03-13
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, complex adjustment procedures are required for the air gap between pole piece and valve armature when assembling an adjustable normally closed solenoid valve

Method used

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  • adjustable solenoid valve
  • adjustable solenoid valve
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Examples

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Embodiment Construction

[0022] as by Figure 1 to Figure 5 As shown, the illustrated embodiments of adjustable solenoid valves 10A, 10B, 10C, 10D, 10E according to the present invention respectively include a magnet assembly 20A, 20B, 20C, 20D, 20E and a guide sleeve 13A, 13B, 13C, 13D, 13E, the immovable part 11 is fixedly arranged in said guide sleeve and the valve armature 17A, 17B, 17C, 17D, 17E can overcome the force of the return spring 16A, 16B, 16C, 16D, 16E The force is arranged axially displaceable in the guide sleeve. The magnet assembly 20A, 20B, 20C, 20D, 20E is pushed onto the immovable part 11 formed for the valve and the guide sleeve 13A, 13B, 13C, 13D, 13E. Axial stops of the armatures 17A, 17B, 17C, 17D, 17E. Said valve armatures 17A, 17B, 17C, 17D, 17E are actuatable by magnetic forces generated by energized magnet assemblies 20A, 20B, 20C, 20D, 20E, and during movement in the blocking direction move the blocking elements 17.1A, 17.1B . D, 17.1E are lifted from valve seats 15.1...

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Abstract

The invention relates to an adjustable solenoid valve (10A) having a magnet assembly (20A) and a guide sleeve (13A) in which a non-movable part (11) is fixedly arranged and a valve armature (17A) is axially displaceable arranged in the guide sleeve, wherein the magnet assembly (20A) is pushed onto the immovable part (11) and the guide sleeve (13A), wherein the said non-movable part (11) forms an axial stop for said valve armature (17A), wherein said valve armature (17A) can be driven by a magnetic force generated by an energized magnet assembly (20A), And pressing the blocking element (17.1A) into the valve seat (15.1A) during the movement in the blocking direction; and lifting the blocking element from the valve seat (15.1A) during the movement in the opening direction. In this case, the valve armature (17A) and the immovable part (11) are each formed as a plastic component, wherein the valve armature (17A) is in its second position facing the immovable part (11). At one end face there is a magnet housing (17.3A) which accommodates a permanent magnet (18A) polarized along its direction of motion so that the permanent magnet (18A) is arranged on the Inside the magnet assembly (20A).

Description

technical field [0001] The invention relates to an adjustable solenoid valve of the type according to independent claim 1 . Background technique [0002] In hydraulic brake systems with the ESP function (ESP: Electronic Stability Program), adjustable solenoid valves are always used for the different functions, wherein the desired valve travel is firstly determined by the force balance between spring force and hydraulic pressure, On the other hand, adjustment takes place via the balance of forces between spring force and magnetic force. The difficulty of adjustment is increased by the strong non-linearity of the magnetic force as a function of the air gap in the magnetic circuit between the movable valve armature and the non-movable part. As the air gap decreases, the magnetic force increases excessively, so that for example disturbances such as pressure pulses in a hydraulic system can lead to greater changes in the magnetic force at smaller air gaps. In order to compensat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/08B60T8/36
CPCB60T8/36F16K31/0655F16K31/0662F16K31/0665F16K31/0675F16K31/082B60T13/686B60T8/363B60T8/367B60T2270/30B60T15/36B60T8/17B60T8/00
Inventor E·库尔茨M·亚姆布罗西M·埃森劳尔W·斯塔尔W·舒勒
Owner ROBERT BOSCH GMBH
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