WO2007133946B1 - Drain valve assembly for use in an air compressor system - Google Patents

Drain valve assembly for use in an air compressor system

Info

Publication number
WO2007133946B1
WO2007133946B1 PCT/US2007/068038 US2007068038W WO2007133946B1 WO 2007133946 B1 WO2007133946 B1 WO 2007133946B1 US 2007068038 W US2007068038 W US 2007068038W WO 2007133946 B1 WO2007133946 B1 WO 2007133946B1
Authority
WO
WIPO (PCT)
Prior art keywords
passage
valve
inlet
outlet
drain valve
Prior art date
Application number
PCT/US2007/068038
Other languages
French (fr)
Other versions
WO2007133946A2 (en
WO2007133946A3 (en
Inventor
Michael Hartl
William B Mccurdy
Original Assignee
New York Air Brake Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by New York Air Brake Corp filed Critical New York Air Brake Corp
Priority to CA002652429A priority Critical patent/CA2652429A1/en
Priority to DE112007001224T priority patent/DE112007001224T5/en
Publication of WO2007133946A2 publication Critical patent/WO2007133946A2/en
Publication of WO2007133946A3 publication Critical patent/WO2007133946A3/en
Publication of WO2007133946B1 publication Critical patent/WO2007133946B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
    • F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
    • F16T1/12—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure
    • F16T1/14—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure involving a piston, diaphragm, or bellows, e.g. displaceable under pressure of incoming condensate

Abstract

The present air compressor system includes an inlet connected to a compression stage, a cooling stage having an inlet connected to an outlet of the compression stage and having an outlet passage; a drain valve having an liquid inlet in and adjacent a bottom of the outlet passage of the cooling stage to drain condensation when opened; and a controller controlling the compression stage and the drain valve.

Claims

9AMENDED CLAIMS received by the International Bureau on 21 May 2008 (21.05.2008)What is claimed:
1. An air compressor system comprising: an inlet connected to a compression stage, a cooling stage having an inlet connected to an outlet of the compression stage and an outlet passage; a drain valve having a passage with an inlet in and adjacent a bottom of the outlet passage of the cooling stage to drain condensation from the outlet passage when opened; and a controller controlling the compression stage and the drain valve; characterized by: the drain valve is adjacent a side of the outlet passage.
2. The system of claim 1, wherein the passage inlet of the drain valve is a siphon tube having an end adjacent a bottom of the outlet passage of the cooling stage.
3. The system of claim 1, wherein an outlet of the drain valve passage is higher than the inlet of the drain valve passage
4. The system of claim 1, wherein the system includes first and second compression stages and the cooling stage is the inter-cooling stage, and the inlet of the cooling stage is connected to an outlet of the first compression stage and the outlet passage of the cooling stage is connected to an inlet of the second compression stage.
5. The system of claim 1, wherein the system includes first and second compression stages, and the inlet of the cooling stage is connected to an outlet passage of the second compression stage.
6. The system of claim 1, including a check valve connecting the outlet passage of the cooling stage to a reservoir, and the drain valve is connected between the cooling stage and the check valve.
7. The system of claim 1, wherein the drain valve is mounted in a pipe connected to and forming part of the outlet passage of the cooling stage, and the passage inlet of the drain valve is in and adjacent a bottom of the pipe. 10
8. The system of claim 7, the pipe is connected to the outlet passage of the cooling stage so that the bottom of the pipe adjacent the passage mlet of the drain valve is the lowest point in the outlet passage
9. The system of claim 1, wherein a valve seat of the dram valve is higher than the passage inlet of the drain valve.
10 The system of claim 1, including a heater mounted adjacent the drain valve.
11 The system of claim 1, wherein the controller operates the drain valve as an unloading valve for the compressor stage.
12 The system of claim 1, wherein the drain valve is a pneumatic piston valve.
13. The system of claim 1, wherein the drain valve is a solenoid valve.
14. A drain valve assembly for an air compressor system, the drain valve assembly compπsing: a housing having a passage extending between a first and second port; a valve chamber haung a passage with an inlet in and adjacent a bottom of the passage and having a drain outlet; a \alve seat in the valve chamber between the drain outlet and the passage inlet of the valve chamber; a valve element responsive to an input signal to cover and uncover the valve seat; characterized by: the valve chamber is adjacent a side of the outlet passage between the two ports.
15. The assembly of claim 14, wherein the passage inlet of the valve chamber is an end of a siphon tube adjacent a bottom of the passage.
16 The assembly of claim 14, wherein an outlet of the valve chamber passage is higher than the passage mlet of the valve chamber connected to the housing passage. 11
17. The assembly of claim 14, wherein the valve seat is higher than the passage inlet of the valve chamber.
18. The assembly of claim 14, including a heater mounted to the housing adjacent the housing passage.
97750v3
PCT/US2007/068038 2006-05-15 2007-05-02 Drain valve assembly for use in an air compressor system WO2007133946A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002652429A CA2652429A1 (en) 2006-05-15 2007-05-02 Drain valve assembly for use in an air compressor system
DE112007001224T DE112007001224T5 (en) 2006-05-15 2007-05-02 Drain valve assembly for use in an air compressor system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/383,251 2006-05-15
US11/383,251 US20070264135A1 (en) 2006-05-15 2006-05-15 Drain Valve Assembly for Use in an Air Compressor System

Publications (3)

Publication Number Publication Date
WO2007133946A2 WO2007133946A2 (en) 2007-11-22
WO2007133946A3 WO2007133946A3 (en) 2008-05-15
WO2007133946B1 true WO2007133946B1 (en) 2008-08-28

Family

ID=38582334

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/068038 WO2007133946A2 (en) 2006-05-15 2007-05-02 Drain valve assembly for use in an air compressor system

Country Status (4)

Country Link
US (1) US20070264135A1 (en)
CA (1) CA2652429A1 (en)
DE (1) DE112007001224T5 (en)
WO (1) WO2007133946A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9856866B2 (en) 2011-01-28 2018-01-02 Wabtec Holding Corp. Oil-free air compressor for rail vehicles
JP6076628B2 (en) * 2012-07-06 2017-02-08 株式会社日立産機システム Drain discharge device and air compressor
US10042371B2 (en) 2014-12-31 2018-08-07 Ingersoll-Rand Company Smart drain and method of control
US10502204B2 (en) * 2015-04-10 2019-12-10 Scott Technologies, Inc. System and method for controlling moisture within an air compressor assembly
CN117307444A (en) * 2018-12-27 2023-12-29 纳博特斯克汽车零部件有限公司 Two-stage reciprocating compressor and automobile

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Publication number Priority date Publication date Assignee Title
US2383244A (en) * 1943-05-27 1945-08-21 Westinghouse Air Brake Co Automatic drain valve
US3216648A (en) * 1962-04-02 1965-11-09 Stephen H Ford Automatic blowdown system for compressors
US3341111A (en) * 1965-04-27 1967-09-12 Westinghouse Air Brake Co Automatically controlled drain valve
US3722187A (en) * 1969-03-21 1973-03-27 Worthington Corp Liquid and gas separating assembly
US4043353A (en) * 1976-08-02 1977-08-23 Westinghouse Air Brake Company Manually, pneumatically, or electrically operable drain valve device
US4443156A (en) * 1981-02-10 1984-04-17 Dunnam Jr James A Automatic natural gas compressor control system
US4453893A (en) * 1982-04-14 1984-06-12 Hutmaker Marlin L Drainage control for compressed air system
JPS63134360A (en) * 1986-11-25 1988-06-06 Nippon Air Brake Co Ltd Air source device
US4922233A (en) * 1988-05-05 1990-05-01 Westinghouse Electric Corp. Flow sensor and system incorporating the same for monitoring steam turbine drain valves
US5114315A (en) * 1989-03-02 1992-05-19 Wabco Westinghouse Fahrzeugbremsen Gmbh Clutch control system for an air compressor
JPH03984A (en) * 1989-05-30 1991-01-07 Toshiba Corp Air compression device
JPH089992B2 (en) * 1990-06-19 1996-01-31 トキコ株式会社 Multi-stage compressor
US5205314A (en) * 1992-05-15 1993-04-27 James A. Kyer Air compressor condensate removal system
AUPM686294A0 (en) * 1994-07-15 1994-08-11 General Pneumatics Pty Ltd Drain valve
US6283725B1 (en) * 1997-07-21 2001-09-04 Westinghouse Air Brake Company Aftercooler bypass means for a locomotive compressed air system
US6027311A (en) * 1997-10-07 2000-02-22 General Electric Company Orifice controlled bypass system for a high pressure air compressor system
US6062825A (en) * 1998-01-21 2000-05-16 Chovan; Dale A. Air compressor aftercooler with automatic heated drain valve and start-up shut-off
JPH11257227A (en) * 1998-03-06 1999-09-21 Hokuetsu Kogyo Co Ltd Drainage discharge method and system for post-stage cooler of compressor
US6146101A (en) * 1998-05-22 2000-11-14 Chang; Ming-Yi Automatic control device for an air compressor
JPH11343976A (en) * 1998-06-02 1999-12-14 Hitachi Ltd Oil separating system
US6287085B1 (en) * 2000-01-26 2001-09-11 Westinghouse Air Brake Company Rapid unloader retrofits
US6571830B2 (en) * 2000-08-11 2003-06-03 Suburban Manufacturing, Inc. Solenoid drain valve assembly for compressed air systems
JP3723459B2 (en) * 2001-02-15 2005-12-07 株式会社神戸製鋼所 Compressor and operation method thereof
KR200329477Y1 (en) * 2003-07-09 2003-10-10 이완영 Automatic draining system for condensation water in air conditioner
US20060013698A1 (en) * 2004-07-12 2006-01-19 Muhammad Pervaiz Locomotive air compressor system with enhanced protection against leakage causative of backflow of pressurized air from a reservoir

Also Published As

Publication number Publication date
CA2652429A1 (en) 2007-11-22
WO2007133946A2 (en) 2007-11-22
US20070264135A1 (en) 2007-11-15
DE112007001224T5 (en) 2009-04-23
WO2007133946A3 (en) 2008-05-15

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