US20070160483A1 - Booster-type gas compressor - Google Patents

Booster-type gas compressor Download PDF

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Publication number
US20070160483A1
US20070160483A1 US11/621,732 US62173207A US2007160483A1 US 20070160483 A1 US20070160483 A1 US 20070160483A1 US 62173207 A US62173207 A US 62173207A US 2007160483 A1 US2007160483 A1 US 2007160483A1
Authority
US
United States
Prior art keywords
piston
compressed
gas
crank
case
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.)
Abandoned
Application number
US11/621,732
Other languages
English (en)
Inventor
Hiroshi Inoue
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.)
Anest Iwata Corp
Original Assignee
Anest Iwata 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 Anest Iwata Corp filed Critical Anest Iwata Corp
Assigned to ANEST IWATA CORPORATION reassignment ANEST IWATA CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: INOUE, HIROSHI
Publication of US20070160483A1 publication Critical patent/US20070160483A1/en
Abandoned legal-status Critical Current

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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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/128—Crankcases
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/022—Stopping, starting, unloading or idling control by means of pressure
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/18—Pressure in a control cylinder/piston unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Definitions

  • the present invention relates to a booster-type gas compressor in which a compressed gas is further compressed by a reciprocating piston.
  • a suction valve 23 is provided at one side of a top wall 22 of a cylinder 21 and a discharge valve 24 is provided at the other side of the top wall 22 .
  • a suction chamber 26 having an inlet 25 and a discharge chamber 28 having an outlet 27 respectively.
  • a crank shaft 31 integrally formed with a driving shaft 30 in a crank case 29 is provided under the cylinder 21 .
  • the driving shaft 30 is driven by an electric motor 34 in a motor case 33 mounted to a side wall 29 a of the crank case 29 so that a gas may pass through.
  • a piston 39 is moved up and down in a cylinder 21 via a piston rod 35 by the crank shaft 31 formed with the driving shaft 30 to compress a gas such as N 2 introduced in a compressing chamber above the piston 36 via the suction valve 23 and to discharge it from the discharge valve 24 and outlet 27 .
  • the compressed gas in the crank case 29 Is partially discharged from an air hole 38 of the crank case 29 to produce loss of energy. Leak of a toxic gas causes air pollution.
  • such a reciprocating-piston-type gas compressor comprises a booster-type gas compressor sucking a compressed gas and compressing it to higher pressure
  • the compressing chamber becomes decompression condition in which a atmospheric pressure gas from an air hole 38 of the crank case 29 flows through around the piston 36 to the compressing chamber above the piston 36 and is mixed in a gas from the suction hole 25 to render density lowered.
  • a ventilating hole 39 is formed in the electric motor case 33 or a fan is mounted to the driving shaft 30 to achieve forcing cooling.
  • the electric motor 34 cannot be completely sealed to render noise leaked or dusts, and solid ingredients in external air are likely to remain in the electric motor 34 or motor case 33 .
  • An object of the present invention is to provide a booster-type gas compressor comprising a reciprocating piston, pressure difference being reduced between a compressing chamber above the piston and a crank case under the piston thereby preventing wear of each part and unsmoothness of the operation.
  • FIG. 1 is a vertical sectional view of the first embodiment of a booster-type gas compressor according to the present invention
  • FIG. 2 is a vertical sectional view of the second embodiment of a booster-type gas compressor according to the present invention
  • FIG. 3 is a vertical sectional view of the third embodiment of a booster-type gas compressor according to the present invention.
  • FIG. 4 is a vertical sectional view of a known booster-type gas compressor
  • FIG. 1 shows the first embodiment of a booster-type gas compressor according to the present invention.
  • the basic structure of the booster-type gas compressor is not so different from that in FIG. 4 .
  • the same numerals are allotted to the same members. Its description is omitted and only differences are described.
  • FIG. 1 there is no air hole 38 communicating external air and a compressed-gas introducing hole 11 is formed in an electric motor case 36 instead of a ventilating hole.
  • a compressed-gas feeding path 37 is connected to a compressed-gas introducing hole 11 via a bypath conduit 14 comprising a check valve 12 that closes towards the compressed-gas feeding path 37 and opens in an opposite direction and a pressure regulator 13 such as a pressure-regulating valve or a pressure reducing valve.
  • a compressed gas is fed into a suction chamber 26 and partially introduced into the crank case 29 via the bypath conduit 14 comprising the check valve 12 and the pressure regulator 13 , the compressed-gas introducing hole 11 .
  • a motor case 33 and a communicating hole 32 to let the inside of the crank case 29 compressed to more than atmospheric pressure.
  • the compressed gas in the compressed-gas feeding path 37 is partially fed into the crank case 29 , so that gas pressure in the crank case 29 becomes more than atmospheric pressure different from a known device.
  • difference in pressure between a compressing chamber above a piston 36 in a cylinder 21 and the inside of the crank case 29 becomes smaller than that in a known device, thereby preventing sliding of the piston 36 from lacking smoothness and preventing each of the bearings 41 , 42 and preventing a seal from reducing their lives or producing looseness caused by unequal force.
  • pressure of a compressed gas in the crank case 29 is regulated, so that pressure difference from a compression chamber above the piston 37 is regulated as soon as possible thereby achieving stable performance.
  • a pressure regulator 15 may be directly joined to the crank case.
  • the pressure regulator 15 may be a reserve tank comprising a pressure-regulating valve and a check valve thereby achieving similar advantage to that in FIG. 1 .
  • a compressed-gas feeding path 37 is connected to a compressed-gas introducing hole 11 of a motor case 33 via a bypath conduit 14 comprising a check valve 12 that closes towards the compressed-gas feeding path 37 and opens in an opposite direction.
  • a pressure regulator 13 is provided on the compressed-gas feeding path 37 between the bypath conduit 14 and a suction valve 23 thereby achieving similar advantage to that in FIG. 1 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
US11/621,732 2006-01-10 2007-01-10 Booster-type gas compressor Abandoned US20070160483A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006002211A JP2007182821A (ja) 2006-01-10 2006-01-10 ブースター式気体圧縮機
JP2006-2211 2006-01-10

Publications (1)

Publication Number Publication Date
US20070160483A1 true US20070160483A1 (en) 2007-07-12

Family

ID=37761940

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/621,732 Abandoned US20070160483A1 (en) 2006-01-10 2007-01-10 Booster-type gas compressor

Country Status (5)

Country Link
US (1) US20070160483A1 (ja)
EP (1) EP1806503B1 (ja)
JP (1) JP2007182821A (ja)
KR (1) KR100815538B1 (ja)
CN (1) CN101000048A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100221128A1 (en) * 2007-09-06 2010-09-02 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Compact Dry-Running Piston Compressor
US20110076164A1 (en) * 2009-09-25 2011-03-31 Wen San Chou Air compressor having tilted piston
US20110123367A1 (en) * 2008-05-30 2011-05-26 Steffen Jordan Device for Operating an Auxiliary Assembly of a Vehicle, in Particular of a Utility Vehicle
GB2610423A (en) * 2021-09-06 2023-03-08 Gardner Denver Ltd An improved reciprocating compressor
WO2023101771A1 (en) * 2021-12-03 2023-06-08 Energy Recovery, Inc. Fluid handling systems including a compressor

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5193762B2 (ja) * 2008-09-04 2013-05-08 株式会社日立産機システム ブースタ圧縮機
JP5412243B2 (ja) * 2009-11-06 2014-02-12 株式会社日立産機システム ブースタ圧縮機
JP5412248B2 (ja) * 2009-11-18 2014-02-12 株式会社日立産機システム 圧縮機
BR112013004376A2 (pt) * 2010-08-27 2019-09-24 Koninl Philips Electronics Nv conjunto compressor configurado para aumentar a pressão de um fluído e método de montar um conjunto compressor que é configurado para aumentar a pressão de um fluído
JP5374524B2 (ja) * 2011-01-26 2013-12-25 住友ゴム工業株式会社 コンプレッサ装置
KR101264371B1 (ko) 2012-04-20 2013-05-14 진권 고압가스 제조용 피스톤식 압축기
JP5668093B2 (ja) * 2013-04-22 2015-02-12 株式会社日立産機システム ブースタ圧縮機
JP6170396B2 (ja) * 2013-09-27 2017-07-26 アネスト岩田株式会社 加圧型ブースター圧縮機
CN108374774A (zh) * 2018-03-27 2018-08-07 习水县文雄水利动力科技有限公司 一种活塞式抽水/气泵
CN108869235A (zh) * 2018-07-04 2018-11-23 蚌埠艾普压缩机制造有限公司 一种用于加氢站高压氢气压缩机的压力调节气缸
CN111852816A (zh) * 2020-06-04 2020-10-30 聂伦喜 天然气降压机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1874752A (en) * 1930-06-13 1932-08-30 Worthington Pump & Mach Corp Air or gas compressor
US2295790A (en) * 1940-07-30 1942-09-15 Bennie R Hopkins Vacuum pressure pump
US2323068A (en) * 1941-03-29 1943-06-29 Maniscalco Pictro Compressor
US3123287A (en) * 1964-03-03 figure
US20020044876A1 (en) * 2000-10-16 2002-04-18 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd. ) Screw compressor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1244105A (en) * 1969-02-04 1971-08-25 Bitzer Kuehlmaschb G M B H Reciprocating piston compressors
JPS6032983A (ja) * 1983-07-31 1985-02-20 Natl House Ind Co Ltd 空気増圧装置
JPS60118386A (ja) * 1983-11-30 1985-06-25 Sumitomo Metal Ind Ltd サブマ−ジア−ク溶接法
DE3536618A1 (de) * 1985-10-15 1987-04-16 Bauer Kompressoren Hubkolbenverdichter, insbesondere booster-verdichter fuer druckgasanlagen
JPH01257780A (ja) * 1988-04-05 1989-10-13 Mitsubishi Electric Corp 往復式圧縮機
JPH02110278A (ja) * 1989-09-01 1990-04-23 Hitachi Ltd 冷蔵庫用貯蔵ケース
JPH05157050A (ja) * 1991-10-09 1993-06-22 Mitsubishi Heavy Ind Ltd 冷凍空調用開放型圧縮機
JP2001193639A (ja) * 2000-01-11 2001-07-17 Toyota Autom Loom Works Ltd 電動斜板圧縮機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123287A (en) * 1964-03-03 figure
US1874752A (en) * 1930-06-13 1932-08-30 Worthington Pump & Mach Corp Air or gas compressor
US2295790A (en) * 1940-07-30 1942-09-15 Bennie R Hopkins Vacuum pressure pump
US2323068A (en) * 1941-03-29 1943-06-29 Maniscalco Pictro Compressor
US20020044876A1 (en) * 2000-10-16 2002-04-18 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd. ) Screw compressor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100221128A1 (en) * 2007-09-06 2010-09-02 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Compact Dry-Running Piston Compressor
US20110123367A1 (en) * 2008-05-30 2011-05-26 Steffen Jordan Device for Operating an Auxiliary Assembly of a Vehicle, in Particular of a Utility Vehicle
US20110076164A1 (en) * 2009-09-25 2011-03-31 Wen San Chou Air compressor having tilted piston
GB2610423A (en) * 2021-09-06 2023-03-08 Gardner Denver Ltd An improved reciprocating compressor
WO2023101771A1 (en) * 2021-12-03 2023-06-08 Energy Recovery, Inc. Fluid handling systems including a compressor

Also Published As

Publication number Publication date
JP2007182821A (ja) 2007-07-19
KR100815538B1 (ko) 2008-03-20
EP1806503B1 (en) 2009-03-11
EP1806503A1 (en) 2007-07-11
KR20070075298A (ko) 2007-07-18
CN101000048A (zh) 2007-07-18

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AS Assignment

Owner name: ANEST IWATA CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INOUE, HIROSHI;REEL/FRAME:018921/0268

Effective date: 20061220

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION