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JPS5454309A - Silencer for use in a displacement fluid machine - Google Patents

Silencer for use in a displacement fluid machine

Info

Publication number
JPS5454309A
JPS5454309A JP12009177A JP12009177A JPS5454309A JP S5454309 A JPS5454309 A JP S5454309A JP 12009177 A JP12009177 A JP 12009177A JP 12009177 A JP12009177 A JP 12009177A JP S5454309 A JPS5454309 A JP S5454309A
Authority
JP
Japan
Prior art keywords
discharge
orifice
induction
silencer
pressure pulsation
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.)
Pending
Application number
JP12009177A
Other languages
Japanese (ja)
Inventor
Hidetomo Mori
Riichi Uchida
Shinichi Shimoide
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12009177A priority Critical patent/JPS5454309A/en
Publication of JPS5454309A publication Critical patent/JPS5454309A/en
Pending 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
    • F04C29/06—Silencing
    • F04C29/063—Sound absorbing materials
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F04C29/0035—Equalization of pressure pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE: To reduce vibration of outer walls of induction and discharge pipes by providing an orifice between a discharge port and a flange in a discharge silencer, whereby pressure pulsation at induction and discharge ports side is lessened before a fluid passes through the induction and discharge ports.
CONSTITUTION: An orifice 29 is provided as a throttle section between a discharge port 10 and a flange 34 in a discharge silencer 21. The orifice 29 in the drawing has hole, but it may have a plurality of small holes. Pressure pulsation in a discharge passage 11 is reflected by and end plane 35 in the orifice 29, and at the same time, contracting from the passage to an orifice open section. Then, the pressure pulsation is lessened by viscosity resistance when the fluid expands from th orifice open section to a chamber 25, and has no energy enough to vibrate an outer wall of the discharge silencer 21 in the chamber 25. Thus, noise caused by pressure pulsation at an induction port 7 and the discharge port 10 side is lessened
COPYRIGHT: (C)1979,JPO&Japio
JP12009177A 1977-10-07 1977-10-07 Silencer for use in a displacement fluid machine Pending JPS5454309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12009177A JPS5454309A (en) 1977-10-07 1977-10-07 Silencer for use in a displacement fluid machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12009177A JPS5454309A (en) 1977-10-07 1977-10-07 Silencer for use in a displacement fluid machine

Publications (1)

Publication Number Publication Date
JPS5454309A true JPS5454309A (en) 1979-04-28

Family

ID=14777674

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12009177A Pending JPS5454309A (en) 1977-10-07 1977-10-07 Silencer for use in a displacement fluid machine

Country Status (1)

Country Link
JP (1) JPS5454309A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54129061U (en) * 1978-03-01 1979-09-07
JPH02125997A (en) * 1988-07-27 1990-05-14 Nippon Denso Co Ltd Variable capacity compressor
US6331103B1 (en) 1998-04-30 2001-12-18 Tochigi Fuji Sangyo Kabushiki Kaisha Fluid machine having a pair of rotors and a silencer
JP2003129978A (en) * 2001-10-24 2003-05-08 Aisin Seiki Co Ltd Multistage vacuum pump
US6638043B1 (en) * 2002-06-28 2003-10-28 Carrier Corporation Diffuser for high-speed screw compressor
JP2006300070A (en) * 2005-04-22 2006-11-02 Kaeser Kompressoren Gmbh Silencer constructed and considered for compressor
EP1799973A2 (en) * 2004-09-30 2007-06-27 Carrier Corporation Compressor sound suppression
WO2015029755A1 (en) * 2013-08-30 2015-03-05 株式会社神戸製鋼所 Screw compressor
CN104500402A (en) * 2014-12-16 2015-04-08 广东美芝制冷设备有限公司 Rotary compressor
TWI717160B (en) * 2019-09-11 2021-01-21 中國商復盛實業（上海）有限公司 Perforated plate type air flow pulsation attenuation device and compressor
WO2021240620A1 (en) * 2020-05-25 2021-12-02 樫山工業株式会社 Vacuum exhaust device provided with silencer
GB2614370A (en) * 2021-12-23 2023-07-05 Man Energy Solutions Se Screw compressor

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54129061U (en) * 1978-03-01 1979-09-07
JPH02125997A (en) * 1988-07-27 1990-05-14 Nippon Denso Co Ltd Variable capacity compressor
US6331103B1 (en) 1998-04-30 2001-12-18 Tochigi Fuji Sangyo Kabushiki Kaisha Fluid machine having a pair of rotors and a silencer
JP2003129978A (en) * 2001-10-24 2003-05-08 Aisin Seiki Co Ltd Multistage vacuum pump
US6638043B1 (en) * 2002-06-28 2003-10-28 Carrier Corporation Diffuser for high-speed screw compressor
US7993112B2 (en) 2004-09-30 2011-08-09 Carrier Corporation Compressor sound suppression
EP1799973A2 (en) * 2004-09-30 2007-06-27 Carrier Corporation Compressor sound suppression
EP1799973A4 (en) * 2004-09-30 2010-10-06 Carrier Corp Compressor sound suppression
JP2006300070A (en) * 2005-04-22 2006-11-02 Kaeser Kompressoren Gmbh Silencer constructed and considered for compressor
WO2015029755A1 (en) * 2013-08-30 2015-03-05 株式会社神戸製鋼所 Screw compressor
JP2015048739A (en) * 2013-08-30 2015-03-16 株式会社神戸製鋼所 Screw compressor
CN104500402A (en) * 2014-12-16 2015-04-08 广东美芝制冷设备有限公司 Rotary compressor
TWI717160B (en) * 2019-09-11 2021-01-21 中國商復盛實業（上海）有限公司 Perforated plate type air flow pulsation attenuation device and compressor
WO2021240620A1 (en) * 2020-05-25 2021-12-02 樫山工業株式会社 Vacuum exhaust device provided with silencer
JPWO2021240620A1 (en) * 2020-05-25 2021-12-02
GB2614370A (en) * 2021-12-23 2023-07-05 Man Energy Solutions Se Screw compressor
US11920596B2 (en) 2021-12-23 2024-03-05 Man Energy Solutions Se Screw compressor configured to compress a process gas and dampen pulsation waves

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