JPS555428A - Water ring pump of side-air-port type - Google Patents

Water ring pump of side-air-port type

Info

Publication number
JPS555428A
JPS555428A JP7625478A JP7625478A JPS555428A JP S555428 A JPS555428 A JP S555428A JP 7625478 A JP7625478 A JP 7625478A JP 7625478 A JP7625478 A JP 7625478A JP S555428 A JPS555428 A JP S555428A
Authority
JP
Japan
Prior art keywords
valve unit
delivery port
prevent
unit
pump
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP7625478A
Other languages
Japanese (ja)
Other versions
JPS6357632B2 (en
Inventor
Akio Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NAKAMURA SUIKAN KK
Original Assignee
NAKAMURA SUIKAN KK
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 NAKAMURA SUIKAN KK filed Critical NAKAMURA SUIKAN KK
Priority to JP7625478A priority Critical patent/JPS555428A/en
Publication of JPS555428A publication Critical patent/JPS555428A/en
Publication of JPS6357632B2 publication Critical patent/JPS6357632B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
    • F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves

Abstract

PURPOSE:To prevent the pump from overcompression and reverse flow compression, further to prevent the valve unit from deterioration, by installing an elastically flexible plate-shape valve unit to the delivery port of the pump as well as by porviding a protecting unit behind its valve unit. CONSTITUTION:As a degree of vacuum increases with the intake air pressure lowering, an elastically flexible plate-shape valve unit 10, installed to a control plate 6, having a width big enough for enclosing many delivery ports 5, begins to close the delivery ports 5 from the lower side, that is, successively in the order of 5a, 5b, 5c, when reaching a predetermened degree of operational vacuum, the valve unit 10, with the topmost delivery port 5d or the top delivery port 5 near the tomost one only excepted, closes the delivery ports 5 located lower than the above. In such manner, the plate-shape valve unit 10, functioning to open the only required delivery port 5 and to close the rest, prevents an operational state of overcompression and reverse flow compression, and the valve unit 10, being contacted to a protecting unit 11 and never vibrated, can prevent its detdrioration.
JP7625478A 1978-06-22 1978-06-22 Water ring pump of side-air-port type Granted JPS555428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7625478A JPS555428A (en) 1978-06-22 1978-06-22 Water ring pump of side-air-port type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7625478A JPS555428A (en) 1978-06-22 1978-06-22 Water ring pump of side-air-port type

Publications (2)

Publication Number Publication Date
JPS555428A true JPS555428A (en) 1980-01-16
JPS6357632B2 JPS6357632B2 (en) 1988-11-11

Family

ID=13600051

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7625478A Granted JPS555428A (en) 1978-06-22 1978-06-22 Water ring pump of side-air-port type

Country Status (1)

Country Link
JP (1) JPS555428A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521161A (en) * 1983-12-23 1985-06-04 The Nash Engineering Company Noise control for conically ported liquid ring pumps
US4551070A (en) * 1983-12-23 1985-11-05 The Nash Engineering Company Noise control for conically ported liquid ring pumps
JPS62220778A (en) * 1986-03-24 1987-09-28 Hitachi Ltd Check valve
JPH035996U (en) * 1989-06-05 1991-01-21
US5299916A (en) * 1991-12-17 1994-04-05 Siemens Aktiengesellschaft Liquid-ring pump having an outlet means including a noise reducing flexible membrane
US5356268A (en) * 1993-09-29 1994-10-18 The Nash Engineering Company Check valve structures for liquid ring pumps
KR970011417A (en) * 1995-08-16 1997-03-27 퀼, 노르트만 Liquid ring compressor
WO1999045275A1 (en) * 1998-03-04 1999-09-10 Siemens Aktiengesellschaft Liquid mechanical pump
WO2008080492A1 (en) * 2007-01-04 2008-07-10 Joma-Polytec Kunststofftechnik Gmbh Vacuum pump having an outlet valve
JP2015175323A (en) * 2014-03-17 2015-10-05 株式会社荏原製作所 Liquid seal type vacuum pump
CN107250546A (en) * 2015-01-08 2017-10-13 佶缔纳士机械有限公司 Compress the low pressure seal liquid inlet region in type liquid rotary pump

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521161A (en) * 1983-12-23 1985-06-04 The Nash Engineering Company Noise control for conically ported liquid ring pumps
JPS60135686A (en) * 1983-12-23 1985-07-19 ザ　ナツシユ　エンジニアリング　コンパニ− Control of noise for conical opening section liquid ring pump
US4551070A (en) * 1983-12-23 1985-11-05 The Nash Engineering Company Noise control for conically ported liquid ring pumps
JPS62220778A (en) * 1986-03-24 1987-09-28 Hitachi Ltd Check valve
JPH035996U (en) * 1989-06-05 1991-01-21
US5299916A (en) * 1991-12-17 1994-04-05 Siemens Aktiengesellschaft Liquid-ring pump having an outlet means including a noise reducing flexible membrane
US5356268A (en) * 1993-09-29 1994-10-18 The Nash Engineering Company Check valve structures for liquid ring pumps
KR970011417A (en) * 1995-08-16 1997-03-27 퀼, 노르트만 Liquid ring compressor
WO1999045275A1 (en) * 1998-03-04 1999-09-10 Siemens Aktiengesellschaft Liquid mechanical pump
WO2008080492A1 (en) * 2007-01-04 2008-07-10 Joma-Polytec Kunststofftechnik Gmbh Vacuum pump having an outlet valve
JP2015175323A (en) * 2014-03-17 2015-10-05 株式会社荏原製作所 Liquid seal type vacuum pump
CN107250546A (en) * 2015-01-08 2017-10-13 佶缔纳士机械有限公司 Compress the low pressure seal liquid inlet region in type liquid rotary pump
CN107250546B (en) * 2015-01-08 2019-11-19 佶缔纳士机械有限公司 Compress the low pressure seal liquid inlet region in type liquid rotary pump

Also Published As

Publication number Publication date
JPS6357632B2 (en) 1988-11-11

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