Pneumatically controlled drain valve

A technology for drain valves and pneumatic switches, applied to valve details, valve devices, steam traps, etc., can solve problems such as damaged membranes, loss of compressor transmission power, and functional reliability limitations

Active Publication Date: 2018-08-31
KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Known pneumatically controlled drain valves (as described above and in figure 1 Drain valve shown as an example in ) does not adequately drain the cooler after the compressor has been shut down
In addition, the displacement is also limited by the filling volume of the valve.
As a result, condensate accumulates in the cooler chamber, which condensate adversely affects the function of the compressor
The functional reliability of such valves is also limited by condensation accumulating on the membrane, since aggressive condensation damages the membrane and shortens its service life
If the membrane no longer seals reliably due to damage, compressed air and condensate can flow into the hood and thus in particular also to the outside, even with the inlet valve closed, whereby the compressor significantly loses delivery power

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pneumatically controlled drain valve
  • Pneumatically controlled drain valve
  • Pneumatically controlled drain valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] figure 1 The already described drain valve 50 known from the prior art is shown in the use position in which the connection port 51 is connected to the cooler of an air compressor (not shown). The drain valve 50 has an air bellows 55 which, during compressor operation, is pressed downwards against the force of a spring 57 by the pressure of the air-condensate mixture flowing in via the connection opening 51 . As a result, the inlet valve 58 arranged centrally on the drain valve 50 is opened in order to allow compressed air and condensate to flow into the hood below the membrane 54 . In this case, the valve piston 56 arranged in the lower region seals against the discharge opening of the drain valve 50 . Once the pressure is equalized in the chambers provided above and below the gas shield 55, the gas shield 55 moves upwards due to the upwardly directed force of the spring 57 and closes the inlet valve 58. The pressure in the chamber above the membrane 54 finally drops...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a drain valve for a cooler of a compressor, with a pressure chamber which can be connected to the inner chamber of the cooler by means of a connection opening, and an outlet for removing a condensate. The valve according to the invention comprises a pneumatic switching device and a non-return valve which are operatively connected to the pressure chamber, with an operativeconnection between the switching device and the non-return valve by means of which the non-return valve can be switched to an open position by the switching device. During the idle operation of the compressor, the non-return valve can be switched by means of the switching device into an open position such that condensate from the connection opening can be removed through the outlet via the non-return valve.

Description

technical field [0001] The invention relates to a drain valve for a cooler of a compressor, comprising a pressure chamber connectable to the inner space of the cooler via a connection port and a drain for draining condensate. The valve has a pneumatic switching device and a non-return valve, which are operatively connected to the pressure chamber. Background technique [0002] Pneumatically controlled drain valves are known in the prior art, as exemplified in figure 1 as shown in the position of use. In this valve, a gas shield is pressed downwards against the force of a spring during compressor operation, thereby opening an inlet valve arranged approximately centrally in the drain valve so that compressed air and condensate can flow into the chamber below the membrane. In the bell chamber (Glockenraum, bell-shaped chamber), at the same time, the valve piston is arranged in cooperation with the discharge opening provided at the lower part to close the valve. The inlet val...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F04B39/16F04B53/04F04B53/10F16T1/14
CPCF04B39/16F04B53/04F04B53/1027F04B53/1032F16T1/14F16K21/00F04B53/1022F16K31/1221
Inventor T·基普E·阿夫沙A·弗里克
Owner KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap