EP3516230A1 - Screw compressor system for a utility vehicle - Google Patents
Screw compressor system for a utility vehicleInfo
- Publication number
- EP3516230A1 EP3516230A1 EP17784179.8A EP17784179A EP3516230A1 EP 3516230 A1 EP3516230 A1 EP 3516230A1 EP 17784179 A EP17784179 A EP 17784179A EP 3516230 A1 EP3516230 A1 EP 3516230A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screw compressor
- control
- regulating unit
- oil
- screw
- 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.)
- Withdrawn
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
- F04C18/14—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 toothed rotary pistons
- F04C18/16—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 toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- 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
-
- 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
- F04B49/06—Control using electricity
-
- 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
- F04B49/20—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 changing the driving speed
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/02—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C2/06—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents of other than internal-axis 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/08—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
-
- 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
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
-
- 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
- F04B2207/00—External parameters
- F04B2207/04—Settings
- F04B2207/043—Settings of time
-
- 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
- F04B39/02—Lubrication
- F04B39/0284—Constructional details, e.g. reservoirs in the casing
-
- 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
- F04C2210/00—Fluid
- F04C2210/10—Fluid working
- F04C2210/1005—Air
-
- 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
- F04C2210/00—Fluid
- F04C2210/22—Fluid gaseous, i.e. compressible
- F04C2210/221—Air
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/19—Temperature
- F04C2270/195—Controlled or regulated
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/23—Working cycle timing control
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/48—Conditions of a reservoir linked to a pump or machine
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/60—Prime mover parameters
-
- 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
-
- 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
- F05B2210/16—Air or water being indistinctly used as working fluid, i.e. the machine can work equally with air or water without any modification
-
- 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
- F05B2270/00—Control
- F05B2270/10—Purpose of the control system
Definitions
- the present invention relates to a screw compressor system for a commercial vehicle having at least one screw compressor with at least one control and / or regulating unit for drive control and / or regulation of the vehicle
- Screw compressors Screw compressors for commercial vehicles are already known from the prior art. Such screw compressors are used to provide the necessary compressed air for, for example, the braking system of the commercial vehicle.
- the oil cooler is here
- Heat exchanger having two separate circuits, wherein the first circuit for the hot liquid, so the compressor oil is provided and the second for the cooling liquid.
- a coolant for example, air
- Water mixtures can be used with an antifreeze or other oil.
- This oil cooler must then with the compressor oil circuit through pipes or
- Hoses are connected and the oil circuit must be secured against leaks.
- This external volume must also be filled with oil, so that the total amount of oil is increased. This increases the system inertia.
- the oil cooler must be mechanically housed and secured, either by surrounding brackets or by a separate
- a generic screw compressor is already known, for example, from DE 10 2004 060 417 B4.
- Screw compressor simplified and can be configured reliably.
- Screw compressor system for a commercial vehicle with at least one
- Screw compressor at least one screw compressor drive and
- control and / or regulating unit is provided, wherein the control and / or regulating unit is in communication with the screw compressor drive, wherein the control and / or regulating unit is arranged and configured so that it is the ratio of service life during operation of the screw compressor and Einschaitzeit the screw compressor drive monitors and controls this ratio to a predetermined range and / or einregelt.
- the invention is based on the idea that by the ratio of
- Compressor is determined. Depending on the design of the screw compressor, it suffices, by controlling the ratio of service life and Einschaitzeit to a predetermined range, the screw compressor in a very tight
- Ratio of service life and on-time of the screw compressor stroke also simultaneously controlled and / or adjusted the heat of the screw compressor, i. can be adjusted.
- control and / or regulating unit part of the screw compressor so either the
- Screw compressor or the screw compressor drive is. As a result, a compact structure is formed and it is not necessary to have access to external components.
- control and / or regulating unit is part of an air treatment system of the commercial vehicle.
- control and / or regulating unit is part of an air treatment system of the commercial vehicle.
- control and / or regulating unit is part of an air treatment system of the commercial vehicle.
- a corresponding control available, which can be easily shared.
- control and / or regulating unit is part of an engine or vehicle control of the commercial vehicle. Again, it would be possible to access an already existing component of the commercial vehicle.
- control and / or regulating unit is designed as a separate control and / or regulating unit. This allows, for example, a simple installation and also a simple exchange or
- the range is selected such that there is a ratio of service life to switch-on time, in which the switch-on time is approximately 20 to 50%, in particular> 30%.
- This ratio of service life to switch-on time with a switch-on time between approximately 20 to 40%, in particular at> 30% has proven to be comparatively favorable in order to be able to adhere the operating temperature substantially constant.
- control and / or regulating unit is designed and configured such that it determines the rotational speed of the
- Screw compressor drive such effects that the ratio of service life and turn-on of the screw compressor drive is kept within the specified range. In essence, it is assumed here that over the
- control and / or regulating unit is designed and configured such that it controls the rotational speed of the
- Screw compressor drive always keeps above a minimum speed.
- FIG. 1 is a schematic sectional view through a screw compressor according to the invention.
- Fig. 2 is a schematic drawing on the bobenkompressorsytem
- Fig. 1 shows a schematic sectional view of a screw compressor 10 in the sense of an embodiment of the present invention.
- the screw compressor 10 has a mounting flange 12 for mechanical attachment of the screw compressor 10 to an electric motor not shown here.
- the screw 18 meshes with the screw 16 and is driven by this.
- the screw compressor 10 has a housing 20 in which the essential components of the screw compressor 10 are housed.
- the housing 20 is filled with oil 22.
- Air inlet side is on the housing 20 of the screw compressor 10 a
- Inlet port 24 is provided.
- the inlet nozzle 24 is designed such that 'an air filter 26 is disposed on it.
- a Heiletnlass 28 is provided radially on the air inlet port 24.
- a spring-loaded valve core 30 is provided, designed here as an axial seal.
- This valve insert 30 serves as a check valve. Downstream of the valve core 30, an air supply channel 32 is provided, which supplies the air to the two screws 16, 18. On the output side of the two screws 18, 18, an air outlet pipe 34 is provided with a riser 36.
- a temperature sensor 38 is provided, by means of which the oil temperature can be monitored.
- a holder 40 for an air de-oiling element 42 is provided in the air outlet area.
- the holder 40 for the air de-oiling element has the air de-oiling element 42 in the mounted state in the region facing the bottom ⁇ as also shown in FIG. 1).
- the holder for the air de-oiling element 40 has a corresponding filter screen or known filter and oil-separating devices 44, which are not specified in detail.
- the check valve 48 and the minimum pressure valve 50 may also be formed in a common, combined valve.
- the air outlet 51 is connected to correspondingly known compressed air consumers in the rule.
- a riser 52 is provided, the output of Holder 40 for the Luftentölelement 42 when passing into the housing 20 has a filter and check valve 54.
- a nozzle 56 Downstream of the filter and check valve 54, a nozzle 56 is provided in a housing bore.
- the oil return line 58 leads back approximately in the middle region of the screw 16 or the screw 18 in order to supply oil 22 again.
- Oil drain plug 59 is provided. About the oil drain plug 59, a
- thermostatic valve 66 instead of the thermostatic valve 66, a control and / or
- Control means may be provided, by means of which the oil temperature of the oil 22 located in the housing 20 can be monitored and adjusted to a desired value.
- the cooler 74 is connected to the projection 60.
- a safety valve 76 In the upper region of the housing 20 (relative to the mounted state) there is a safety valve 76, via which an excessive pressure in the housing 20 can be reduced. Before the minimum pressure valve 50 is a bypass line 78, which leads to a relief valve 80. About this relief valve 80 mitteis a
- connection with the air supply 32 is controlled, air can be returned to the region of the air inlet 28.
- a venting not shown in detail and also a nozzle (diameter reduction of the feeding line) may be provided.
- an oil level sensor 82 may be provided.
- This oil level sensor 82 may be, for example, an optical sensor and arranged and configured so that it can be detected by the sensor signal, whether the oil level in operation above the oil level sensor 82 or if the oil level sensor 82 is exposed and thereby the oil level has fallen accordingly.
- an alarm unit can also be provided which outputs or forwards an appropriate error message or warning message to the user of the system.
- the function of the screw compressor 10 shown in FIG. 1 is as follows:
- Air is supplied via the air inlet 28 and passes through the check valve 30 to the screws 16, 18, where the air is compressed.
- the compressed air-oil mixture which rises by a factor of between 5 and 16 times compression after the screws 16 and 18 through the outlet conduit 34 via the riser 36, is blown directly onto the temperature sensor 38.
- the air which still partly carries oil particles, is then guided via the holder 40 into the air de-oiling element 42 and, provided the corresponding minimum pressure is reached, enters the air outlet line 51.
- the oil 22 located in the housing 20 is maintained at the operating temperature via the oil filter 62 and possibly via the heat exchanger 74. If no cooling is necessary, the heat exchanger 74 is not used and is not switched on.
- Screw 16 but also fed to the bearing 72.
- the screw 16 or the screw 18 is supplied via the return line 52, 58 with oil 22, here is the purification of the oil 22 in Luftentölelement 42.
- oil 22 here is the purification of the oil 22 in Luftentölelement 42.
- Fig. 2 shows a schematic representation of an inventive
- Screw compressor system 100 with the screw compressor 10 shown in Fig. 1 and a control and regulating unit 110th
- the control and regulation unit 110 is here as part of the
- Screw compressor system 100 is formed.
- control and regulation unit 1 10 part of an air treatment system of the commercial vehicle, part of a
- the control and regulating unit 10 is here designed and configured such that during operation of the screw compressor 10 it monitors the ratio of service life and switch-on time of the screw compressor drive for driving the screws 16 and 18 and adjusts this ratio to a predetermined range.
- this range is selected such that there is a ratio of service life to switch-on time, in which the switch-on time is> 30%.
- an area is selected here that is between 30 to 50% on-time, so that the service life is between 50 to 70% and the switch-on time is about 30 to 50%.
- control and regulation unit 110 is furthermore designed and configured such that it influences the rotational speed of the screw compressor drive.
- Control and regulation unit 1 10 the speed always above one
- Screw compressor 10 can come to condensation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016011507.6A DE102016011507A1 (en) | 2016-09-21 | 2016-09-21 | Screw compressor system for a commercial vehicle |
PCT/EP2017/073579 WO2018054878A1 (en) | 2016-09-21 | 2017-09-19 | Screw compressor system for a utility vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3516230A1 true EP3516230A1 (en) | 2019-07-31 |
Family
ID=60083915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17784179.8A Withdrawn EP3516230A1 (en) | 2016-09-21 | 2017-09-19 | Screw compressor system for a utility vehicle |
Country Status (8)
Country | Link |
---|---|
US (1) | US20190338778A1 (en) |
EP (1) | EP3516230A1 (en) |
JP (1) | JP2019536942A (en) |
KR (1) | KR20190045946A (en) |
CN (1) | CN109964038A (en) |
BR (1) | BR112019005057A2 (en) |
DE (1) | DE102016011507A1 (en) |
WO (1) | WO2018054878A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE541834C2 (en) * | 2017-02-20 | 2019-12-27 | Scania Cv Ab | Device and method for controlling speed of a rotary air compressor, and a vehicle comprising the device |
JP6767568B2 (en) * | 2017-03-31 | 2020-10-14 | 株式会社日立産機システム | Gas compressor |
US20210095675A1 (en) * | 2019-09-27 | 2021-04-01 | Sullair, Llc | Electronic controlled spiral valve capacity modulation for a portable screw compressor |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
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US4748873A (en) | 1986-05-23 | 1988-06-07 | Raymond Engineering Inc. | Power wrench |
US4780061A (en) | 1987-08-06 | 1988-10-25 | American Standard Inc. | Screw compressor with integral oil cooling |
DE4333591A1 (en) * | 1993-10-01 | 1995-04-06 | Bayerische Motoren Werke Ag | Controller for switching the electric drive motor, in particular of an air compressor, on and off to match the demand |
DE19810764B4 (en) * | 1998-03-12 | 2005-05-25 | Continental Aktiengesellschaft | Demand-dependent on and off compressor and method for controlling or regulating such a compressor |
DE19812234C2 (en) * | 1998-03-20 | 2002-07-18 | Daimler Chrysler Ag | Air suspension system for vehicles |
JP2002089456A (en) * | 2000-09-20 | 2002-03-27 | Kawasaki Heavy Ind Ltd | Control device for motor-driven air compressor in rolling stock |
JP3951697B2 (en) * | 2001-12-14 | 2007-08-01 | 株式会社デンソー | Screw type compressor |
JP4276528B2 (en) * | 2003-11-28 | 2009-06-10 | 株式会社日立製作所 | Compressor |
DE102004060417B4 (en) * | 2004-12-14 | 2006-10-26 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Compact screw compressor for mobile use in a vehicle |
BRPI0501446A (en) * | 2005-04-29 | 2006-12-12 | Brasil Compressores Sa | method of protection against breakage of lubricating oil film in hermetic compressor bearings |
JP2007198199A (en) | 2006-01-25 | 2007-08-09 | Hitachi Industrial Equipment Systems Co Ltd | Capacity control device and capacity control method for screw compressor |
JP5234393B2 (en) * | 2007-09-14 | 2013-07-10 | 株式会社リコー | Image forming apparatus and toner supply method |
JP4987660B2 (en) | 2007-10-12 | 2012-07-25 | 株式会社荏原製作所 | Operation control device and operation stop method for vacuum pump |
US8602001B2 (en) * | 2010-09-17 | 2013-12-10 | GM Global Technology Operations LLC | Torque limiting engine lubrication protection system |
JP2012127253A (en) | 2010-12-15 | 2012-07-05 | Kobe Steel Ltd | Screw compressor |
DE102011076785A1 (en) | 2011-05-31 | 2012-12-06 | Robert Bosch Gmbh | Control device for an electric vacuum pump and method for driving an electric vacuum pump |
US8768523B2 (en) * | 2011-11-23 | 2014-07-01 | Bendix Commercial Vehicle Systems Llc | Detection of blocked air line for electric compressor at start up |
DE102013113555A1 (en) | 2013-12-05 | 2015-06-11 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Compressor system and method for operating the compressor system depending on the operating state of the rail vehicle |
-
2016
- 2016-09-21 DE DE102016011507.6A patent/DE102016011507A1/en not_active Withdrawn
-
2017
- 2017-09-19 US US16/333,564 patent/US20190338778A1/en not_active Abandoned
- 2017-09-19 WO PCT/EP2017/073579 patent/WO2018054878A1/en unknown
- 2017-09-19 KR KR1020197011048A patent/KR20190045946A/en not_active Application Discontinuation
- 2017-09-19 EP EP17784179.8A patent/EP3516230A1/en not_active Withdrawn
- 2017-09-19 CN CN201780070184.0A patent/CN109964038A/en active Pending
- 2017-09-19 JP JP2019536679A patent/JP2019536942A/en active Pending
- 2017-09-19 BR BR112019005057A patent/BR112019005057A2/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
JP2019536942A (en) | 2019-12-19 |
US20190338778A1 (en) | 2019-11-07 |
BR112019005057A2 (en) | 2019-06-18 |
WO2018054878A1 (en) | 2018-03-29 |
KR20190045946A (en) | 2019-05-03 |
DE102016011507A1 (en) | 2018-03-22 |
CN109964038A (en) | 2019-07-02 |
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