EP2348217A3 - Rotary positive displacement blower with noise and shock reduction - Google Patents

Rotary positive displacement blower with noise and shock reduction Download PDF

Info

Publication number
EP2348217A3
EP2348217A3 EP11000544A EP11000544A EP2348217A3 EP 2348217 A3 EP2348217 A3 EP 2348217A3 EP 11000544 A EP11000544 A EP 11000544A EP 11000544 A EP11000544 A EP 11000544A EP 2348217 A3 EP2348217 A3 EP 2348217A3
Authority
EP
European Patent Office
Prior art keywords
pass
chamber
housing
noise
rotor
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
EP11000544A
Other languages
German (de)
French (fr)
Other versions
EP2348217A2 (en
EP2348217B1 (en
Inventor
Erich R. Fitzpatrick
Michael R. Buis
Charles R. Jones Jr.
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.)
Tuthill Corp
Original Assignee
Tuthill 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 Tuthill Corp filed Critical Tuthill Corp
Publication of EP2348217A2 publication Critical patent/EP2348217A2/en
Publication of EP2348217A3 publication Critical patent/EP2348217A3/en
Application granted granted Critical
Publication of EP2348217B1 publication Critical patent/EP2348217B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F04C18/126—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 radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots 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
    • F04C29/06—Silencing
    • F04C29/065—Noise dampening volumes, e.g. muffler chambers
    • 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
    • F04C29/068—Silencing the silencing means being arranged inside the pump housing
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Landscapes

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

Abstract

A roots-style blower (210) has a housing (214), rotors (230) and manifolds (212) for the housing (214). The housing (214) forms an inlet plenum (220), a rotor chamber (224) and a discharge plenum (228). The rotors (230) have straight lobes (232) spaced by pockets (240). The pocket (240X) that traps gas between a leading and following lobe (232) and an inside wall of the rotor chamber (224) is a temporary closed cell (240X). The manifolds (212) and the housing (214) form a pair of back-pass loops (250-251), one for each rotor (230). Each back-pass loop (250-252) comprises a back-pass chamber (250), outer channels (252) from the discharge plenum (228) to the back-pass chamber (250), and inner channels (251) to the rotor chamber (224). Wherein, the back-pass chamber (250) volume as a percentage of closed cell (240X) volume ranges between about fifty-six percent (56%) and one-hundred-seventeen percent (117%).
EP11000544A 2010-01-22 2011-01-24 Rotary positive displacement blower with noise and shock reduction Not-in-force EP2348217B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33649510P 2010-01-22 2010-01-22

Publications (3)

Publication Number Publication Date
EP2348217A2 EP2348217A2 (en) 2011-07-27
EP2348217A3 true EP2348217A3 (en) 2011-11-30
EP2348217B1 EP2348217B1 (en) 2013-01-16

Family

ID=44070059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11000544A Not-in-force EP2348217B1 (en) 2010-01-22 2011-01-24 Rotary positive displacement blower with noise and shock reduction

Country Status (2)

Country Link
US (2) US20120195783A1 (en)
EP (1) EP2348217B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9683521B2 (en) * 2013-10-31 2017-06-20 Eaton Corporation Thermal abatement systems
CN105485020B (en) * 2016-01-20 2019-01-15 珠海格力电器股份有限公司 Compressor and air suction end cover thereof
US12060881B2 (en) * 2020-11-12 2024-08-13 Ingersoll-Rand Industrial U.S., Inc. Positive displacement roots blower noise suppression
CN115773243B (en) * 2022-12-08 2023-10-24 西安交通大学 Roots hydrogen pump applied to fuel cell automobile system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB959855A (en) * 1962-03-15 1964-06-03 Polysius Gmbh A roots blower
GB2178485A (en) * 1985-07-30 1987-02-11 Aerzener Maschf Gmbh Method for compressing a gaseous flow media in a roots compressor
US5439358A (en) * 1994-01-27 1995-08-08 Weinbrecht; John F. Recirculating rotary gas compressor
US5702240A (en) * 1995-05-05 1997-12-30 Tuthill Corporation Rotary positive displacement blower having a diverging outlet part
WO2006062741A2 (en) * 2004-12-09 2006-06-15 Carrier Corporation Compressor sound suppression

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513446A (en) * 1946-05-17 1950-07-04 Brown And Brown Pump or motor
JPS6432085A (en) * 1987-07-28 1989-02-02 Fuji Heavy Ind Ltd Roots-type compressor
US5090879A (en) * 1989-06-20 1992-02-25 Weinbrecht John F Recirculating rotary gas compressor
US6099277A (en) * 1998-08-12 2000-08-08 Dresser Industries, Inc. Gas blower and method utilizing recirculation openings

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB959855A (en) * 1962-03-15 1964-06-03 Polysius Gmbh A roots blower
GB2178485A (en) * 1985-07-30 1987-02-11 Aerzener Maschf Gmbh Method for compressing a gaseous flow media in a roots compressor
US5439358A (en) * 1994-01-27 1995-08-08 Weinbrecht; John F. Recirculating rotary gas compressor
US5702240A (en) * 1995-05-05 1997-12-30 Tuthill Corporation Rotary positive displacement blower having a diverging outlet part
WO2006062741A2 (en) * 2004-12-09 2006-06-15 Carrier Corporation Compressor sound suppression

Also Published As

Publication number Publication date
US20120195783A1 (en) 2012-08-02
EP2348217A2 (en) 2011-07-27
EP2348217B1 (en) 2013-01-16
US20160245287A1 (en) 2016-08-25

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