EP2984347A1 - Einrichtung zur leistungseinsparung bei einem kolbenverdichter - Google Patents
Einrichtung zur leistungseinsparung bei einem kolbenverdichterInfo
- Publication number
- EP2984347A1 EP2984347A1 EP14715843.0A EP14715843A EP2984347A1 EP 2984347 A1 EP2984347 A1 EP 2984347A1 EP 14715843 A EP14715843 A EP 14715843A EP 2984347 A1 EP2984347 A1 EP 2984347A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction
- valve
- cylinder head
- pressure
- plate
- 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
Links
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
- 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
- F04B49/225—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 with throttling valves or valves varying the pump inlet opening or the outlet opening
-
- 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
- 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
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed 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
- F04B49/22—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
- F04B49/243—Bypassing by keeping open the inlet valve
-
- 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
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0003—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber
- F04B7/0007—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber and having a rotating movement
-
- 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
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0042—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member
- F04B7/0046—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member for rotating 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
- 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
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0057—Mechanical driving means therefor, e.g. cams
- F04B7/0061—Mechanical driving means therefor, e.g. cams for a rotating member
Definitions
- the invention relates to a device for power saving in a
- Piston compressor in particular for compressed air generation in a motor vehicle, with a piston arranged in a cylinder axially movable piston for generating compressed air, which passes through at least one intake valve for compressing into a compression chamber of the cylinder, wherein the intake valve with
- pressure-controlled means for power saving cooperates.
- Reciprocating compressors for motor vehicle construction in particular commercial vehicle construction, which primarily for the production of compressed air for compressed air systems in
- the pressure valve opens at the top of the valve plate as before at a certain pressure level. Compressed air enters the pressure regulator from the pressure chamber where it is blown off to the atmosphere via a relief valve. This means that a portion of the air sucked in during the suction cycle leaves the cylinder space through the suction openings, while a still existing proportion of the air is pushed out through the pressure openings.
- Suction lamella suction work continues to be carried out as the piston compressor continues to operate, ie air is drawn into the suction line via the suction line, the suction port is open and the suction valve is in the idling position
- Suction chamber of the compressor is sucked and is at least partially in the Suction line pushed back again when the piston of the compressor
- FR 1 098 045 A describes a reciprocating compressor whose suction valve has an actuating mechanism for keeping it open.
- This is a plunger which acts on the suction valve and carries a piston which can be acted upon by the pressure of the pressure vessel connected to the compressor, such that the plunger is displaced through the piston when a pressure threshold is exceeded and the suction valve is accordingly opened.
- a check valve is provided in the suction line thereof, which opens when a negative pressure in the suction line, to suck air into the reciprocating compressor.
- the pressure valve of the reciprocating compressor is unaffected by the operation of the suction valve, which is constantly in the ready state, so that even in idle position of the suction valve always a certain compression work is done.
- the object of the present invention is to provide a device for power saving in a reciprocating compressor, with which in the shutdown or idling phase as complete as possible
- the invention includes the technical teaching that the actuating means the suction plate of the valve plate so coordinated actuated that this in the
- Cylinder head cover or a similar component by means of a slider or the like shuts off to an increased harmful space in the region of
- Sauglamelle can be used as a sliding or Drehlamelle with the help of
- Actuating means are moved under control by a pressure regulator or otherwise provided control signal from its working position to the idle position, in which the at least one suction port is either partially or completely exposed, such that the in the compression space
- the achievable power savings is on the order of about 60%.
- the solution according to the invention ensures that no unnecessary volume of air is displaced on the pressure side of the compressor. It is also prevented in particular in parallel to the suction line of the reciprocating compressor turbochargers or compressors that occur in these by sucking air laden with lubricating oil under the action of high temperatures coking. Furthermore, the efficiency of the compressor in the delivery phase is not adversely affected by the inventive solution, so it throttle losses are avoided.
- the suction lamella is designed so that it works without friction. As a result, no wear occurs even with very little lubricating oil in the compression chamber
- the suction plate is formed so that in the idle phase, the pressure openings are completely or partially closed as needed. An unnecessary displacement of a volume fraction of air in the pressure chamber therefore does not take place. Only if a certain amount of residual air to avoid icing or contamination is desired, a partial opening of the
- the actuating means which are preferably pneumatically actuated for adjusting the suction lamella and the slide, act in a preferred embodiment of the invention substantially parallel to the plane of the valve plate and have an actuating piston which can be acted upon by a control pressure.
- the actuating piston can be guided in a bore of the cylinder head cover, which can be formed by casting in the cylinder head cover.
- the actuating piston acts by means of a driving pin extending through the bore on an actuating member rotatable the suction lamella between working and idle position as well as on the suction port closing slider.
- the closing the suction port in the cylinder head cover slide is designed according to a preferred embodiment as a hinged thereto pivoting slide and lies within the cylinder head cover.
- the slider is furthermore preferably provided with a minimum air valve in the region closing off the suction connection.
- Embodiment is acting as a check valve minimum air valve, a multi-plate valve, which consists of a terminal end of the slide as a breakthrough formed minimum air trap with hereby cooperating valve lamella.
- the plurality of suction openings formed in the valve plate are arranged annularly and with a disk-shaped as a rotary blade with openings and recesses
- Valve plate formed pressure valve cross-sections are arranged in an annular shape, which open into a pressure chamber with connection to the pressure line within the cylinder cover, which are alternately closed with the disc-shaped suction plate. These pressure valve cross-sections interact with a pressure-valve unit arranged inside the cylinder head, preferably consisting of pressure-valve catch, pressure-valve spring and pressure-valve lamella.
- FIG. 1 shows a schematic representation of a reciprocating compressor with a device for power saving, cooperating therewith, a perspective view of a valve plate and
- Figure 9 is a schematic representation of a two-cylinder construction of a
- Piston compressor with cooperating device for power saving. According to Figure 1, there is a piston compressor for compressed air generation in
- crankcase 400 includes a cylinder which together with the piston 100 forms a compression space 500, which is provided on the front side with a cylinder head 600, which is shown here only schematically, with a power saving device integrated therein.
- the cylinder head 600 comprises a slide 7 which functions as a 2/2-way valve and activates a suction connection 1 of the reciprocating compressor with integrated minimum air valve 8.
- the ambient air drawn in via the suction connection 1 passes via the slide 7 within the cylinder head 600 into a dead space formed therein and switchable serving suction chamber 18th
- the suction chamber 18 opens in the cylinder head 600 via a - not shown - valve plate in trained suction openings.
- the suction openings 3 are controlled via a designed as a suction plate 4 2/2-way valve circuit to prevent in the valve position shown, which corresponds to the working position of the compressor via a check valve function, a return flow of compressed air into the suction chamber 18 and the generated compressed air via at least one likewise formed in the valve plate pressure bore 5 with downstream pressure valve unit.
- Minimum air valve 8 of the slide 7 also serves to ensure a reduced flow rate in the case of a blocked in the closed position mechanism and thus constitutes a safety function.
- the cylinder head 600 in the outer view essentially of a valve plate 2, on which an intermediate plate 20 to the extended
- Housing the device is placed on the power saving, which is followed by a cylinder head cover 21.
- a cylinder head cover 21 In the cylinder head cover 21 is an opening for supplying the control pressure S for inside the cylinder head 600th
- the disc-shaped designed as a rotary blade suction plate 4 is arranged at the bottom of the valve plate 2.
- the suction lamella 4 is here in the working position, wherein - in accordance with Figure 1 - arranged annularly arranged in the valve plate 2 introduced pressure holes 5 are open, while here - not recognizable - hidden by the suction plate 4 and also annularly arranged in the valve plate 2 Suction openings 3 are covered.
- Figure 3 illustrates, in contrast to the external view described above, a partial sectional bottom view of the power saving device with omission of the intermediate plate 20 and cylinder head cover 21 in detail showing the actuating means for the device to save power in the working position.
- the pneumatically actuated actuating means comprise a guided parallel to the plane of the valve plate 2 and acted upon by the control pressure S.
- Actuating piston 1 1 The actuating means are in the control pressure-less Starting position. In this case acts with the actuating piston 1 1 coupled driving pin 17 via a rotary lever 10 with a rotary lever axis 14 for
- Valve plate formed suction openings 3, whereas at the same time adjacent pressure valve cross-sections 5 are released through openings 6 in the suction plate 4.
- the pressure valve cross sections 5 cooperate with a pressure valve unit 9a-9c, which form a check valve to the delivery side.
- FIG. 4 is a plan view of the mechanism shown in FIG. 3, with the reference numerals used above in conjunction with FIG. 3 applying the foregoing detailed description. Illustrated by way of illustration here is the functional position of the actuating means of the device for power saving. In addition, it can be seen that the slide 7 is provided at the end, which is not shown here - the suction connection 1, with a minimum air intake opening 15 of the minimum air valve 8 (not shown here). According to FIG. 5, the device for power saving using the component designation according to the previous detailed description in FIG. 5,
- the suction openings 3 of the valve plate 2 are opened by recesses 16 of the suction plate 4, whereas the pressure valve cross-sections 5 are closed, since these are not connected to the corresponding openings 6 in the suction plate 4 in
- FIG. 7 is a sectional view taken along line V-V of FIG. 6 and illustrates the apparatus for power saving in the neutral position.
- Cylinder head cover 21 in the form of a pivot lever slide 7.
- the rotary lever 10 is further actuated, which actuates the suction plate 4 via the rotary lever axis 14.
- the pressure valve unit cooperating with the pressure valve cross sections 5 in the valve plate 2 consists of a pressure valve catch 9a, a pressure valve spring 9b and a pressure valve cam 9c, which is arranged here in the region of the intermediate plate 20 of the cylinder head.
- Figure 8 is a sectional view of line IV-IV in Figure 4 and illustrates the device for power saving in the working position. Incidentally, the above applies here as well with regard to the reference numbers used
- FIG. 9 shows a two-cylinder construction of a reciprocating compressor in which the same intake space is used by both cylinders.
- the slide 7 ' is present only once, since there is only one suction port 1 in this embodiment.
- Each compression chamber 500 and 500a is associated with its own rotatable suction plate 4 and 4a.
- In the idle phase then pushes a piston 100, the air via the suction chamber 18 in the other compression chamber 500a at 180 ° stroke displacement at this moment just a downwardly moving piston 100a has, so sucks. Due to the large cross-section open suction openings 3, 3a and the freely flow through the suction chamber 18 occur only very small
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013006138.5A DE102013006138A1 (de) | 2013-04-10 | 2013-04-10 | Einrichtung zur Leistungseinsparung bei einem Kolbenverdichter |
| PCT/EP2014/000908 WO2014166615A1 (de) | 2013-04-10 | 2014-04-04 | Einrichtung zur leistungseinsparung bei einem kolbenverdichter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2984347A1 true EP2984347A1 (de) | 2016-02-17 |
| EP2984347B1 EP2984347B1 (de) | 2017-03-22 |
Family
ID=50442472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14715843.0A Not-in-force EP2984347B1 (de) | 2013-04-10 | 2014-04-04 | Einrichtung zur leistungseinsparung bei einem kolbenverdichter |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10072653B2 (de) |
| EP (1) | EP2984347B1 (de) |
| CN (1) | CN105102817B (de) |
| DE (1) | DE102013006138A1 (de) |
| WO (1) | WO2014166615A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020132824A1 (de) * | 2020-12-09 | 2022-06-09 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Optimiertes Ventilsystem für Kolbenkompressoren - Ventillamelle und Ventilfänger mit aerodynamischer Dämpfung |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2139313A (en) * | 1938-03-14 | 1938-12-06 | York Ice Machinery Corp | Valve for compressors |
| FR1098045A (fr) | 1953-11-24 | 1955-07-15 | Dispositif de régulation pour compresseurs d'air ou de gaz | |
| US3351271A (en) * | 1965-11-02 | 1967-11-07 | Worthington Corp | Unloading device for reciprocating compressors |
| DE3329790C2 (de) | 1983-08-18 | 1995-11-30 | Wabco Gmbh | Ventilträger für Kolbenverdichter |
| DE3642852A1 (de) * | 1986-12-16 | 1988-06-30 | Wabco Westinghouse Fahrzeug | Einrichtung zur uebertragung einer antriebskraft zwischen zwei bauteilen |
| DE3904172A1 (de) * | 1989-02-11 | 1990-08-16 | Wabco Westinghouse Fahrzeug | Ventillamelle |
| DE4138664A1 (de) * | 1991-11-25 | 1993-05-27 | Knorr Bremse Ag | Energiesparender kolbenverdichter |
| CN2109465U (zh) * | 1991-12-20 | 1992-07-08 | 宋振龙 | 汽车空压机节能器 |
| DE19529684C2 (de) * | 1995-08-11 | 1998-03-19 | Knorr Bremse Systeme | Kolbenverdichter, insbesondere für die Drucklufterzeugung in Kraftfahrzeugen |
| DE19739662A1 (de) * | 1997-09-10 | 1999-03-11 | Bosch Gmbh Robert | Ventilanordnung in einem Kolbenverdichter |
| DE19848217B4 (de) | 1998-10-20 | 2013-06-27 | Wabco Gmbh | Gasverdichter |
| CN201096070Y (zh) * | 2007-08-07 | 2008-08-06 | 上海扎努西电气机械有限公司 | 减小余隙容积的制冷压缩机活塞 |
| CN201225264Y (zh) * | 2008-05-06 | 2009-04-22 | 武汉理工大学 | 活塞往复式压缩机余隙无级调节装置 |
-
2013
- 2013-04-10 DE DE102013006138.5A patent/DE102013006138A1/de not_active Ceased
-
2014
- 2014-04-04 CN CN201480020383.7A patent/CN105102817B/zh not_active Expired - Fee Related
- 2014-04-04 WO PCT/EP2014/000908 patent/WO2014166615A1/de not_active Ceased
- 2014-04-04 EP EP14715843.0A patent/EP2984347B1/de not_active Not-in-force
-
2015
- 2015-10-09 US US14/879,219 patent/US10072653B2/en active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2014166615A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014166615A1 (de) | 2014-10-16 |
| EP2984347B1 (de) | 2017-03-22 |
| US10072653B2 (en) | 2018-09-11 |
| CN105102817A (zh) | 2015-11-25 |
| US20160032917A1 (en) | 2016-02-04 |
| DE102013006138A1 (de) | 2014-10-16 |
| CN105102817B (zh) | 2017-02-22 |
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