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Electropneumatic cartridge valve, especially for use as a pilot valve in a narrowly designed pneumatic valve for a compact valve unit

A cartridge valve, pneumatic valve technology, applied in the direction of electrical components, valve shell structure, engine components, etc., can solve the problems of long and narrow, inapplicable, large outer diameter of pneumatic cartridge valves, etc., to improve the magnetic potential and force potential. , the effect of increased installation height

Inactive Publication Date: 2012-02-29
BOSCH REXROTH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] A disadvantage of the prior art is that the known pneumatic cartridge valves have a large outer diameter, so that they are not suitable for particularly narrow valve bodies of the type mentioned at the outset

Method used

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  • Electropneumatic cartridge valve, especially for use as a pilot valve in a narrowly designed pneumatic valve for a compact valve unit
  • Electropneumatic cartridge valve, especially for use as a pilot valve in a narrowly designed pneumatic valve for a compact valve unit
  • Electropneumatic cartridge valve, especially for use as a pilot valve in a narrowly designed pneumatic valve for a compact valve unit

Examples

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Embodiment Construction

[0022] Such as Figure 1a As shown, the main body of the pneumatic valve 1 has a receiving device, in which a pneumatic cartridge valve composed of a driving part 2a and a valve part 2b is embedded. The drive part 2 a basically consists of an electromagnetic coil 3 surrounded by a U-shaped clamp 4 as a flux conducting member of the external magnetic circuit. The electrical connection of the solenoid coil 3 takes place via respective connection leads 5 connected to the ends of the coil.

[0023] The valve part 2b of the pneumatic cartridge valve has a circular cross section and is provided with a plurality of annular channels 7 into which the compressed air connections 6 enter. In order to seal the annular channels 7 for the compressed air connections 6 against one another, various sealing rings 8 are arranged therein, which engage the main body of the pneumatic valve 1 in a sealing manner.

[0024] Such as Figure 1b As shown, the drive part 2a has a substantially rectangula...

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Abstract

Disclosed is a pneumatic cartridge valve, especially the pneumatic cartridge valve used as pre-control valve of a narrow designed pneumatic valve (1) for a compact valve unit. The pneumatic cartridge valve comprises a driving part (2a) that encompasses an electromagnetic coil (3) and actuates a valve part (2b) which is provided with a round cross section and outer compressed air connections (6). The compressed air connections (6) are directed outward in the area of the cylindrical outer surface of the valve part (2b). The driving part (2a) has a substantially rectangular cross section in relation to the valve part (2b), the length (B) of the shorter edge of said rectangular cross section being determined by the winding diameter of the electromagnetic coil (3).

Description

technical field [0001] The invention relates to an electro-pneumatic cartridge valve, in particular for use as a pre-control valve in a pneumatic valve of elongated design for a compact valve unit, the electro-pneumatic cartridge valve having an actuating part comprising a solenoid coil, The drive part operates a valve part having a circular cross-section, and the valve part has at least two external compressed air connections. Background technique [0002] The field of application of the invention relates in particular to elongated pneumatic valves which are arranged next to one another to form a substantially quadrangular, compact valve unit. The advantage of such a valve unit is that the supply of air pressure and the discharge of the exhaust gases produced by the individual pneumatic valves can be carried out centrally. The more compact the design of the valve unit is omitted, the more elongated the individual pneumatic valves are. In the case of pneumatic valves for t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F7/08F16K31/06F16K27/00
CPCF16K27/003F16K31/06H01F7/1607H01F2007/083Y10T137/7761
Inventor 海因茨·戈德特卡尔·特罗尔奇
Owner BOSCH REXROTH AG