EP2245306B1 - Kompressor mit einer energiesparvorrichtung und verfahren zum energiesparenden betreiben eines kompressors - Google Patents

Kompressor mit einer energiesparvorrichtung und verfahren zum energiesparenden betreiben eines kompressors Download PDF

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Publication number
EP2245306B1
EP2245306B1 EP09703163.7A EP09703163A EP2245306B1 EP 2245306 B1 EP2245306 B1 EP 2245306B1 EP 09703163 A EP09703163 A EP 09703163A EP 2245306 B1 EP2245306 B1 EP 2245306B1
Authority
EP
European Patent Office
Prior art keywords
piston
compressor
shut
space
dead space
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.)
Not-in-force
Application number
EP09703163.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2245306A1 (de
Inventor
Frédéric AMIOT
Emmanuel Fraisse
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.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
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Publication date
Application filed by Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP2245306A1 publication Critical patent/EP2245306A1/de
Application granted granted Critical
Publication of EP2245306B1 publication Critical patent/EP2245306B1/de
Not-in-force 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
    • 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
    • F04B39/08—Actuation of distribution members
    • 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
    • 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

Definitions

  • the invention relates to a compressor for generating compressed air for a commercial vehicle, wherein the compressor comprises a housing having a piston chamber and a dead space and a valve device with a shut-off for separating the dead space of the piston chamber, wherein the shut-off for opening the valve means of a valve seat in Direction of the piston chamber can be lifted.
  • the invention further relates to a method for relieving a compressor for generating compressed air for a commercial vehicle, wherein the compressor comprises a housing with a piston chamber and a dead space and a valve device with a shut-off for separating the dead space of the piston chamber, wherein the shut-off to open the Valve device is lifted from a valve seat in the direction of the piston chamber.
  • Modern commercial vehicles which are used for example in rail or road, have many compressed air consumers whose air consumption is usually satisfied by a compressed air supply system comprising a compressor.
  • This compressor is usually driven directly by the existing in the commercial vehicle combustion engine, which is also used for the propulsion of the commercial vehicle. Because the drive of the compressor is coupled directly to the internal combustion engine, the compressor constantly rotates as long as the combustion engine of the commercial vehicle rotates. In particular, the compressor works even if no air demand of the compressed air consumer is present or existing in the commercial vehicle compressed air storage are completely filled. In this case, the compressor is usually relieved to reduce energy consumption.
  • An embodiment of such a relief device is for example the GB 2 323 639 A removable.
  • the power consumption of the unloaded compressor drops from about 3 KW to less than 1 KW at 2000 rpm.
  • the existing dead space is currently about 7 ccm.
  • a maximum of about 90 cc dead space is possible because the dead space valve acts as a throttle and a larger dead space no further energy savings.
  • a further disadvantage is the high energy consumption during a delivery phase of the compressor due to the existing paragraph.
  • the US 4, 498, 848 A describes a compressor having a dead space separable by a relief valve from a compression space of the compressor.
  • the movable in the compression chamber piston is smooth on its the relief valve facing and the compression chamber limiting end face.
  • a compressor in which a valve body of an inlet valve and a valve body of an outlet valve protrude in their disengaged states at least partially in recesses provided therefor of a piston.
  • the invention has for its object to reduce the throttle effect of Schadraumventils and simultaneously to keep energy losses by a permanently existing dead space low.
  • the invention is based on the generic compressor in that the shut-off is at least partially movable into the piston chamber, wherein the lifted off the valve seat shut-off protrudes at the upper reversal point of a piston movable in the piston chamber at least partially into a recess arranged on the piston, and wherein the shut-off body in the off-hook state is flush with a valve plate.
  • the shut-off body in the off-hook state is flush with a valve plate.
  • the dead space is coupled to the atmosphere.
  • a further valve means are provided with a further shut-off body and a further piston chamber and that the further shut-off body for opening the further valve means can be lifted from a further valve seat in the direction of the further piston chamber.
  • opening valve means may be provided to relieve the compressor.
  • the further shut-off body is at least partially movable into the further piston chamber, the further shut-off body lifted from the further valve seat at least partially into a further piston movable in the further piston chamber into a further piston arranged on the further piston Recess protrudes.
  • the piston chamber and the further piston chamber are connected to one another via the dead space when the valve device and the further valve device are open.
  • a further dead space is provided, which is connectable via the further valve means with the further piston chamber.
  • the provision of a further dead space allows the separate discharge of the piston chamber and the other piston chamber.
  • the further dead space is coupled to the atmosphere.
  • the invention further provides a utility vehicle having a compressor according to the invention.
  • the generic method is further developed in that the shut-off is at least partially moved into the piston chamber, while a movable piston in the space in the vicinity of the lower reversal point, wherein the lifted from the valve seat shut-off at the upper reversal point of the piston at least partially from one of the recess arranged in the piston is received, and wherein the shut-off body in the off-hook state is flush with a valve plate.
  • the movement of the shut-off body while the piston movable in the piston chamber is near the lower turning point is particularly easy because at this time the pressure in the piston chamber is low.
  • the dead space is coupled to the atmosphere.
  • a further valve means are provided with a further shut-off body and a further piston chamber, wherein the further shut-off body is lifted to open the further valve means from a further valve seat in the direction of the further piston chamber.
  • the further shut-off body is at least partially moved into the further piston chamber, while a movable in the other piston chamber further piston in the vicinity of the lower reversal point, wherein the lifted off from the other valve seat further shut-off at the upper reversal point of further piston is at least partially received by a arranged on the further piston further recess.
  • piston chamber and the further piston chamber are connected to one another via the dead space.
  • a further dead space is provided, which is connected via the further valve means with the further piston chamber.
  • FIG. 1 shows a sectional view of an unclaimed embodiment of a compressor.
  • the illustrated compressor 10 comprises a housing 14 with a piston chamber 16 in which a piston 30 movable in the piston chamber 30 is arranged, which is driven by a connecting rod 34 by a crankshaft 36, and a cylinder head 28.
  • a dead space 18th In the cylinder head 28 are a dead space 18th and a valve device 20 with a shut-off body 22 and an associated valve seat 24 behind a recess 26.
  • By switching the valve device 20 is a connection between the dead space 18 and the piston chamber 16 can be released, which will be explained in more detail below.
  • FIG. 2 shows a detailed view of an unclaimed embodiment of a cylinder head.
  • a spring 46 a support plate 48, a sealing ring 50, a valve plate 52nd and a switch room 54.
  • the recess 26 is recessed with the valve seat 24, on which the shut-off body 22 is seated in the illustrated closed state of the valve device 20.
  • the shut-off body 22 is pressed against the valve seat 24 by the spring 46 supported on the support plate 48.
  • the sealing ring 50 seals the switching chamber 54, wherein a ventilation of the switching chamber 54 causes disengagement of the shut-off body 22 in the recess 26 against the spring force of the spring 46.
  • FIG. 3 the valve device 20 is shown in the closed state, while in FIG. 4 a similar valve device 20 is shown in an open state. In the open state, the control room 54 is vented and as a result, the shut-off 22 is disengaged into the recess 26, that is lifted from the valve seat 24.
  • FIG. 5 shows a section of a compressor according to the invention.
  • the in FIG. 5 shown section of the compressor 10 differs from those in the FIGS. 1 to 4 illustrated embodiments in that no recess 26 is provided in the valve plate 52.
  • the shut-off body 22 closes flush with the valve plate 52 in the engaged state.
  • the shut-off body 22 protrudes partially into the recess 32 at the upper reversal point of the piston 30.
  • Between the recess 32 and the dead space 18 is formed when disengaging the shut-off body 22 by ventilation of the control room 54 a connection through which air can flow.
  • FIG. 6 shows a section of a second compressor according to the invention.
  • the in FIG. 6 illustrated compressor 10 is a compressor with two cylinders.
  • a further piston chamber 16 ' In addition to the already designated parts includes the in FIG. 6 illustrated compressor 10 a further piston chamber 16 ', another dead space 18', another valve means 20 'with a further shut-off body 22', another valve seat 24 'and another spring 46' and another piston 30 'with a further recess 32' ,
  • the dead space 18 is not connected to the further dead space 18 'and both dead spaces 18, 18' can be switched separately from the two valve devices 20, 20 'to relieve the two cylinders.
  • FIGs 7a, 7b and 7c show the working phases of an unclaimed unloaded compressor 10.
  • a compressor 10 is shown, the valve device 20 has been opened during the last power stroke to relieve the compressor 10.
  • air is sucked through an air inlet valve 38 from an air inlet 42 into the piston chamber 16.
  • the air outlet valve 40 remains closed and no air is conveyed into an air outlet 44.
  • the piston 30 moves again in the direction of the valve device 20, whereby the air inlet valve 38 closes due to the lack of negative pressure and the air outlet valve 40 ideally does not open due to the low pressure in the piston chamber 16. Since the valve device 20 is open, that is, the dead space 18 is connected to the piston chamber 16, the compressor 10 during this phase breathes air into the dead space 18. The air is therefore compressed into the dead space 18, wherein the achievable pressure in the ideal case below the am Air outlet 44 remaining pressure remains.
  • FIG. 8 shows an unclaimed unloaded compressor.
  • the in FIG. 8 shown compressor 10 is a compressor with two cylinders, wherein the piston chamber 16 and the other piston chamber 16 'by opening a valve means 20 and a further valve means 20' via a dead space 18 are connectable.
  • the compressor 10 is relieved, wherein during the periodic up and down movement of the piston 30 and the other piston 30', the air over the dead space 18 between the two piston chambers 16, 16 'is pumped back and forth.
  • both the air inlet valves 38, 38 'and the air outlet valves 40, 40' remain closed, since neither a negative pressure nor an overpressure is built up in the interior.
  • the illustrated compressor thus sucks no air through the two air inlets 42, 42 'in its unloaded state.
  • FIGS. 9a and 9b Two diagrams show the energy saving through compressor discharge illustrative. On the X-axis of both diagrams the compressor speed is plotted in revolutions per minute, while on the Y-axis the respective energy consumption in kilowatt hours is plotted.
  • the FIG. 9a shows four curves for a compressor with 250 cm 3 , wherein the curves 104 and 106 denote the energy consumption at a delivery pressure of 8.5 bar and 12 bar.
  • the curves 100 and 102 denote two different energy saving modes of the compressor, which can be realized by discharge. In the FIG.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
EP09703163.7A 2008-01-22 2009-01-13 Kompressor mit einer energiesparvorrichtung und verfahren zum energiesparenden betreiben eines kompressors Not-in-force EP2245306B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810005435 DE102008005435A1 (de) 2008-01-22 2008-01-22 Kompressor mit einer Energiesparvorrichtung und Verfahren zum energiesparenden Betreiben eines Kompressors
PCT/EP2009/000144 WO2009092534A1 (de) 2008-01-22 2009-01-13 Kompressor mit einer energiesparvorrichtung und verfahren zum energiesparenden betreiben eines kompressors

Publications (2)

Publication Number Publication Date
EP2245306A1 EP2245306A1 (de) 2010-11-03
EP2245306B1 true EP2245306B1 (de) 2013-09-11

Family

ID=40466910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09703163.7A Not-in-force EP2245306B1 (de) 2008-01-22 2009-01-13 Kompressor mit einer energiesparvorrichtung und verfahren zum energiesparenden betreiben eines kompressors

Country Status (7)

Country Link
EP (1) EP2245306B1 (ja)
JP (1) JP5553770B2 (ja)
CN (2) CN104832403B (ja)
BR (1) BRPI0906515A2 (ja)
DE (1) DE102008005435A1 (ja)
RU (1) RU2505705C2 (ja)
WO (1) WO2009092534A1 (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10352308B2 (en) 2012-12-18 2019-07-16 Emerson Climate Technologies, Inc. Reciprocating compressor with vapor injection system
DE102013114303A1 (de) 2013-12-18 2015-06-18 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Kompressorsystem mit einer Kolbenhubeinstellvorrichtung
DE102013114304A1 (de) 2013-12-18 2015-06-18 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Kompressorsystem mit einer Kolbenhubeinstellvorrichtung
DE102014014140A1 (de) 2014-09-20 2015-03-19 Daimler Ag Kompressor zum Verdichten von Luft, insbesondere für einen Kraftwagen
EP2998581B1 (en) 2014-09-22 2017-11-15 KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH Compressor system
DE102016106332A1 (de) 2016-04-07 2017-10-12 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Kompressor mit Energiesparvorrichtung und Verfahren zum Entlasten des Kompressors
RU168836U1 (ru) * 2016-05-16 2017-02-21 Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный технический университет" Поршневой компрессор
DE102016006358A1 (de) * 2016-05-21 2017-11-23 Wabco Gmbh Hubkolbenkompressor einer Druckluftversorgungsanlage
JP6919874B2 (ja) * 2016-12-19 2021-08-18 グエン チー カンパニー リミテッド 空気圧縮装置
CN107288852B (zh) * 2017-07-24 2018-11-27 广州万宝集团压缩机有限公司 一种压力自适应阀板部件
DE102018103595A1 (de) 2018-02-19 2019-08-22 Man Truck & Bus Ag Vorrichtung zur Erzeugung von Druckluft

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BE540219A (ja)
JPS517842B1 (ja) 1968-11-15 1976-03-11
GB1270019A (en) 1969-07-05 1972-04-12 John E Grimmer Air compressor
DE3211598A1 (de) * 1982-03-30 1983-11-03 Daimler-Benz Ag, 7000 Stuttgart Hubkolben-luftpresser
DE3324477A1 (de) * 1983-03-05 1984-09-06 Robert Bosch Gmbh, 7000 Stuttgart Druckluftanlage von fahrzeugen, insbesondere druckluftbremsanlage
DE3308608A1 (de) 1983-03-11 1984-09-13 Robert Bosch Gmbh, 7000 Stuttgart Analog/digital-wandler
GB8618155D0 (en) 1986-07-25 1986-09-03 Bendix Ltd Gas compressor apparatus
JP2603134Y2 (ja) * 1993-02-15 2000-02-28 三輪精機株式会社 エアコンプレッサ
JP2695380B2 (ja) * 1994-03-01 1997-12-24 リョービ株式会社 コンプレッサー
US5735675A (en) * 1995-07-25 1998-04-07 Peoples; Richard Claude Combination compressor unloader
GB2323639B (en) 1996-12-13 2000-08-23 Knorr Bremse Systeme Improvements relating to gas compressors
CN2416251Y (zh) * 2000-03-10 2001-01-24 瞿开培 空气压缩机的气压自动稳压装置
JP2002285972A (ja) * 2001-03-26 2002-10-03 Okinawa Kaihatsuchiyou Okinawa Sogo Jimukiyokuchiyou コンプレッサユニット
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Also Published As

Publication number Publication date
BRPI0906515A2 (pt) 2015-07-14
DE102008005435A1 (de) 2009-07-23
RU2010134933A (ru) 2012-02-27
CN101896721A (zh) 2010-11-24
CN104832403B (zh) 2017-07-14
JP2011510223A (ja) 2011-03-31
EP2245306A1 (de) 2010-11-03
WO2009092534A1 (de) 2009-07-30
JP5553770B2 (ja) 2014-07-16
RU2505705C2 (ru) 2014-01-27
CN104832403A (zh) 2015-08-12

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