EP2955380A1 - Luftkompressorvorrichtung - Google Patents

Luftkompressorvorrichtung Download PDF

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Publication number
EP2955380A1
EP2955380A1 EP13874477.6A EP13874477A EP2955380A1 EP 2955380 A1 EP2955380 A1 EP 2955380A1 EP 13874477 A EP13874477 A EP 13874477A EP 2955380 A1 EP2955380 A1 EP 2955380A1
Authority
EP
European Patent Office
Prior art keywords
air
cylinder
air compressor
mounting bolt
soft cap
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
EP13874477.6A
Other languages
English (en)
French (fr)
Other versions
EP2955380A4 (de
EP2955380B1 (de
Inventor
Wen-San Chou
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to HUE13874477A priority Critical patent/HUE040241T2/hu
Priority to PL13874477T priority patent/PL2955380T3/pl
Publication of EP2955380A1 publication Critical patent/EP2955380A1/de
Publication of EP2955380A4 publication Critical patent/EP2955380A4/de
Application granted granted Critical
Publication of EP2955380B1 publication Critical patent/EP2955380B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F04B35/06—Mobile combinations
    • 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
    • F04B39/125—Cylinder heads
    • 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
    • F04B49/03—Stopping, starting, unloading or idling control by means of valves
    • F04B49/035—Bypassing
    • 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
    • F04B49/16—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 by adjusting the capacity of dead spaces of working chambers
    • 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
    • F04B49/22—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 by means of valves
    • F04B49/24—Bypassing

Definitions

  • the present invention relates to an air compressor, which can prevent a tire from over-inflation without using a mechanical safety valve.
  • the safety valve When the air compressor is used to inflate a tire, if the pressure of the air supply is greater than a safety pressure set for the tire, the safety valve can act automatically to release air into the environment. However, after the safety valve has served for a long time, the valve may be stuck, so that it cannot work properly upon a high pressure of the compressed air produced in the air compressor. Thus, a tire may be excessively inflated, thereby causing a blowout.
  • One object of the present invention is to provide an air compressor, which allows air supply to keep less than a safety pressure without using a mechanical safety valve, so that a tire can be inflated without exceeding a safety pressure thereof.
  • the present invention offers a solution as follows:
  • one feature of the present invention is that: when the piston body reaches top dead center, a space is existed between the head of the piston body and the top wall of the cylinder.
  • the auxiliary air chamber cooperates with the inner space of the cylinder to increase the operational security.
  • the air compressor of the present invention can keep the pressure of air supply less than a safety pressure without using a mechanical safety valve, so that a tire can be inflated without exceeding a safety pressure thereof, and at the same time, the manufacturing cost of the air compressor can be reduced.
  • an air compressor according to one embodiment of the present invention is shown, which generally includes a box 1 and a compressor unit installed in the box 1, wherein the box 1 is provided with a switch 11, a button 12, and a transparent window 13.
  • the compressor unit includes a cylinder 3, which allows a piston body 25 to operate therein, and a main frame 20, which is formed integrally with the cylinder 3 and used to mount a motor 21.
  • the main frame 20 also mounts a transmission mechanism, which includes a pinion 22 and a gear 23 provided with a counterweight 28 and a crankpin 24.
  • the motor 21 is fitted with a cooling fan 27.
  • the motor 21 can derive the transmission mechanism to have the piston body 25 conduct reciprocating motion along an inner surface 34 of the cylinder 3 to produce compressed air, which can overcome a compression spring 42 and thus push a plug 41 up, so that the compressed air can be transferred into an air storage container 5 via an exit hole 32.
  • the air storage container 5 is provided with a plurality of outlets 52, 53, 55 (see also FIG 9 ), wherein the outlet 52 is connected with a hose 91; the outlet 53 is connected with a relief valve 7; the outlet 55 is connected with a pressure gauge 9.
  • One primary feature of the present invention is that: when the piston body 25 has conducted an upward stroke to reach top dead center, a space 33 is existed between the top wall 31 of the cylinder 3 and the head 26 of the piston body 25, as shown in FIG 7 . Therefore, the pressure of the compressed air does not exceed a predetermined pressure set for a tire to be inflated, without requiring the compressor unit to install a mechanical safety valve, so that a user can inflate a tire more conveniently, and the tire can be protected from over-inflation.
  • a tube 54 is formed integrally with the air storage container 5 and on the cylinder 3, wherein the tube 54 does not communicate with the inner space 51 of the air storage container 5.
  • the tube 54 defines therein an auxiliary chamber 541 communicating with the inner space 33 of the cylinder 3.
  • An adjusting bolt 8 is threadedly fitted into the tube 54 for adjusting the volume of the auxiliary chamber 541.
  • the bottom 50 of the air storage container 5 is joined to the top wall 31 of the cylinder 3.
  • the top wall 31 defines the exit hole 32 and an auxiliary exit hole 35.
  • the exit hole 32 allows the inner space 33 of the cylinder 3 to communicate with the inner space 51 of the air storage container 5.
  • the auxiliary exit hole 35 allows the inner space 33 of the cylinder 3 to communicate with the auxiliary chamber 541 of the tube 54.
  • the plug 41 is placed on the exit hole 32 defined on the top wall 31.
  • a rectangular top cover 6 has a rotating handle 61 at its outer surface and a central column 62 extending from its inner surface (see FIG 5 ).
  • the central column 62 has a base portion and a reduced portion 64 extending from the base portion, wherein a step 63 is formed between the base portion and the reduced portion 64.
  • the base portion of the central column 62 is provided with a plurality of annular protrusions 621 and defines a plurality of annular grooves 622 at its outer surface.
  • a plurality of seal rings 65 are fitted into the annular grooves 622 of the central column 62.
  • the top cover 6 can be coupled to the air storage container 6 by turning the rotating handle 61.
  • One end of the compression spring 42 is engaged with the plug 41, while an opposite end of the compression spring 42 is engaged with a lowest one of the annular protrusions 621.
  • the relief valve 7 includes a hollow soft cap 71 having a tip 711 and an annular portion provided with a plurality of spaced protrusions 712 at its outer surface. Between two adjacent protrusions 712 defines a gap 713.
  • Amounting bolt 72 defines a central through hole 722 extending from an opening 721 at one end of the mounting bolt 72, wherein the central through hole 722 of the mounting bolt 72 has a diameter smaller than the opening 721 of the mounting bolt 72.
  • the soft cap 71 is fitted in the outlet 53.
  • the mounting bolt 72 is fitted into the outlet 53 to have an opposite end of the mounting bolt 72 located near the soft cap 71.
  • the annular portion of the soft cap 71 is engaged with an inner surface of the outlet 53.
  • the tip 711 of soft cap 71 is located near the opposite end of the mounting bolt 72.
  • a push bar 121 of the button 12 is inserted through the through hole 722 of the mounting bolt 72 to touch the tip 711 of the soft cap 71.
  • the button 12 may be depressed to allow its push bar 121 to compress the soft cap 71 and thus deform the soft cap 71, so that excessive air in an object to be inflated can be released into the environment via the outlet 53 which connects the relief valve 7, as shown in FIG 6 .
  • the adjusting bolt 8, which is threadedly fitted into the tube 54, defines at its outer surface an annular groove 81 to be fitted with a seal ring 82. Turning the adjusting bolt 8 can adjust the volume of the auxiliary chamber 541, which in turn affect the inner space 33 of the cylinder 3, as shown in FIGS. 5 and 7 .
  • the space 33 is existed between the head 26 of the piston body 25 and the top wall 31 of the cylinder 3; namely, the head 26 of the piston body 25 is not located near the top wall 31 of the cylinder 3.
  • the space 33 has a depth indicated by the symbol (X) between the top surface of the head 26 of the piston body 25 and the top wall 31 of the cylinder 3.
  • the compressed air contained in the inner space 33 of the cylinder 3 can overcome the compression spring 42 to push the plug 41 up and thus flow into the inner space 51 of the air storage container 5 via the exit hole 32 defined on the top wall 31 of the cylinder 3, and then can flow into an object via one of the outlets 52, 53, 55.
  • the upward movement of the plug 41 can be limited by the reduced portion 64 of the central column 62 of the top cover 6, as shown in FIGS. 7 and 9 .
  • a user may turn the adjusting bolt 8 fitted at the tube 54 to adjust the volume of the auxiliary air chamber 541 that communicates with the inner space 33 of the cylinder 3, so that the pressure of the compressed air produced in the cylinder 3 will be less than a safety pressure for an object to be inflated.
  • the compressor unit does not require a mechanical safety valve to limit the pressure of the compressed air produced in the cylinder, so that a user can inflate a tire more conveniently, and the manufacturing cost of the compressor unit can be reduced.
  • one feature of the present invention is that when the piston body 25, which conducts reciprocating motion in the cylinder 3, reaches top dead center, a space is existed between the head 26 of the piston body 25 and the top wall 31 of the cylinder 3, so that the pressure of the compressed air produced in the cylinder 3 will not exceed a safety pressure for a tire to be inflated.
  • the adjusting bolt 8 can adjust the volume of the auxiliary air chamber 541 of the tube 54 to adjust the maximum permissible output pressure of the compressor unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
EP13874477.6A 2013-02-07 2013-02-07 Luftkompressorvorrichtung Active EP2955380B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
HUE13874477A HUE040241T2 (hu) 2013-02-07 2013-02-07 Légkompresszor berendezés
PL13874477T PL2955380T3 (pl) 2013-02-07 2013-02-07 Przyrząd sprężarki powietrza

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/071535 WO2014121498A1 (zh) 2013-02-07 2013-02-07 空气压缩机装置

Publications (3)

Publication Number Publication Date
EP2955380A1 true EP2955380A1 (de) 2015-12-16
EP2955380A4 EP2955380A4 (de) 2017-01-11
EP2955380B1 EP2955380B1 (de) 2018-05-30

Family

ID=51299205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13874477.6A Active EP2955380B1 (de) 2013-02-07 2013-02-07 Luftkompressorvorrichtung

Country Status (9)

Country Link
EP (1) EP2955380B1 (de)
JP (1) JP6178866B2 (de)
KR (1) KR101801626B1 (de)
CN (1) CN104956083B (de)
DK (1) DK2955380T3 (de)
HU (1) HUE040241T2 (de)
PL (1) PL2955380T3 (de)
TR (1) TR201812103T4 (de)
WO (1) WO2014121498A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI589776B (zh) * 2015-03-11 2017-07-01 周文三 打氣機設備組結構

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US302978A (en) * 1884-08-05 Air-compressor
US1867681A (en) * 1931-07-31 1932-07-19 Vitler Mfg Company Compressor
US2047167A (en) * 1932-04-13 1936-07-07 Baldwin Southwark Corp Adjustable clearance mechanism
GB410714A (en) * 1933-01-14 1934-05-24 Sulzer Ag Improvements in or relating to apparatus for controlling the output of compressors of the piston type
US3379211A (en) * 1965-11-05 1968-04-23 Bendix Westinghouse Automotive Compression control valve
SE363878B (de) * 1969-07-18 1974-02-04 Wabco Westinghouse Gmbh
US4068562A (en) * 1973-12-19 1978-01-17 Mark Isaakovich Frenkel Cylinder of piston compressor
DE2918482A1 (de) * 1979-05-08 1980-11-13 Wabco Fahrzeugbremsen Gmbh Regelung von drucklufterzeugeranlagen
JPS56101092A (en) * 1980-01-16 1981-08-13 Ogura Clutch Co Ltd Compressor
JPS56120382U (de) * 1980-02-15 1981-09-12
CN1030813A (zh) * 1987-07-18 1989-02-01 安东·布朗 多缸直线排列发动机压缩机的缓冲室
JPH0451263Y2 (de) * 1987-10-23 1992-12-02
JPH09144651A (ja) * 1995-11-20 1997-06-03 Toyota Autom Loom Works Ltd 往復動型圧縮機
US5655887A (en) * 1996-09-11 1997-08-12 Chou; Wen-San Valved Piston arrangement for an electric motor driven air compressor
US5902097A (en) * 1997-05-19 1999-05-11 Wu; Scott Pumping device with a clamping nozzle for various valves
US5921269A (en) * 1997-06-30 1999-07-13 Wu; Scott Tire inflator
KR100248835B1 (ko) * 1997-11-15 2000-04-01 정몽규 라디에이터 캡
CN2349378Y (zh) * 1998-09-15 1999-11-17 周文三 改良结构的空气压缩机
US7462018B2 (en) 2002-08-12 2008-12-09 Wen San Chou Air compressor having stable configuration
US6742441B1 (en) * 2002-12-05 2004-06-01 Halliburton Energy Services, Inc. Continuously variable displacement pump with predefined unswept volume
US6783333B2 (en) * 2003-01-15 2004-08-31 Min-Hsieng Wang Air compressor
US7040355B2 (en) * 2003-12-15 2006-05-09 Scott Wu Air nozzle and relief valve arrangement for vertical tire pump
US7240642B2 (en) * 2005-08-16 2007-07-10 Wen San Chou Air compressor having changeable structure
EP1852609B2 (de) * 2006-05-03 2014-06-18 Wen-San Jhou Luftkompressor
CN100434695C (zh) * 2007-01-29 2008-11-19 西安交通大学 一种往复式压缩机余隙调节方法
CN101240783B (zh) * 2007-02-05 2011-03-09 周文三 空气压缩机结构
US20110020144A1 (en) * 2008-05-30 2011-01-27 Cameron International Corporation Variable-volume head
DE102008040040A1 (de) * 2008-06-30 2009-12-31 Robert Bosch Gmbh Mehrkolbenpumpe
US8522833B2 (en) * 2008-11-04 2013-09-03 Wen San Chou Device for sealing and inflating inflatable object
TWI430899B (zh) * 2010-03-10 2014-03-21 Wen San Chou 可充氣及修補輪胎之空壓機
JP5438702B2 (ja) * 2011-02-17 2014-03-12 住友ゴム工業株式会社 コンプレッサ装置

Also Published As

Publication number Publication date
JP6178866B2 (ja) 2017-08-09
JP2016509154A (ja) 2016-03-24
CN104956083A (zh) 2015-09-30
CN104956083B (zh) 2016-12-07
KR20150110503A (ko) 2015-10-02
WO2014121498A1 (zh) 2014-08-14
HUE040241T2 (hu) 2019-02-28
PL2955380T3 (pl) 2018-11-30
DK2955380T3 (en) 2018-09-03
EP2955380A4 (de) 2017-01-11
EP2955380B1 (de) 2018-05-30
TR201812103T4 (tr) 2018-09-21
KR101801626B1 (ko) 2017-11-27

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