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Profiled plate valve

A technology for valves and valve seats, applied in the field of flat valves, can solve problems such as reducing contact pressure and reducing sealing reliability

Inactive Publication Date: 2003-02-05
COLTEC INDAL PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Having mating surfaces reduces the contact pressure associated with the joint between these surfaces and in turn reduces the reliability of the seal

Method used

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  • Profiled plate valve
  • Profiled plate valve
  • Profiled plate valve

Examples

Experimental program
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Embodiment Construction

[0052] Detailed Description of Preferred Embodiments

[0053] The present invention overcomes many of the problems associated with prior art plate valves for piston compressors. Advantages and other features of the valve disclosed herein will become apparent to those skilled in the art from the following description of certain preferred embodiments of the invention in conjunction with the sketches of the aforementioned embodiments.

[0054] Referring now to the sketch drawings, wherein like reference numerals designate like structural parts of the present invention, figure 1 A prior flat valve for a piston compressor is shown in , indicated at 10 . The plate valve 10 mainly includes a valve seat 12 in an annular structure, a valve guard 14 in an annular state, a flat sealing disc 16 and spiral biasing members 18a-18d. Valve seat 12 and valve guard 14 each define a plurality of arcuate inflow and discharge flow passages, designated at 22 and 24, respectively. In the assemble...

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PUM

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Abstract

The present invention relates to a compressor valve (100) having a valve seat (110), a valve guard (120) and a sealing plate (130) with contoured sealing surfaces, the valve seat having defining inlet flow ports (116) for admitting a controlled medium into the valve, the lower surface of the valve seat including at least one seating surface, the valve guard having a recessed area and defining outlet flow ports (126) for discharging a controlled medium from the valve, the sealing plate positioned within a cavity between the valve guard and valve seat and moves relative to the lower surface of the valve seat between an open and closed position, the upper surface of the sealing surface for engaging at least one seating surface of the valve seat along a continuous line of contact when the valve is in the closed position.

Description

[0001] Cross References to Related Applications [0002] This application claims priority over US Provisional Patent Application No. 60 / 175,602, filed January 11, 2000, which is incorporated herein by reference. technical field [0003] The present invention relates to a flat plate valve for a piston compressor, in particular a valve comprising a sealing disc with a shaped sealing surface. Background technique [0004] Piston compressors are positive displacement machines that generally include a piston, a piston rod, a cylinder, at least one suction valve and at least one discharge valve. In a piston compressor, the medium, usually gas or air, is collected in a closed cylinder and then compressed by the movement of the piston in the cylinder to reduce its volume. The medium is compressed to a pressure sufficient to overcome the tension of the spring holding the closed discharge valve, at which point the discharge valve opens and allows the compressed medium to exit the cyl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/10
CPCF04B39/1033Y10T137/7864Y10T137/7865F04B39/1053Y10T137/7839Y10T137/786F16K15/066F16K17/04F16K15/1402
Inventor 尼尔·C·彭萨
Owner COLTEC INDAL PRODS
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