EP3245407A1 - Multi-stage jet suction pump - Google Patents
Multi-stage jet suction pumpInfo
- Publication number
- EP3245407A1 EP3245407A1 EP16700111.4A EP16700111A EP3245407A1 EP 3245407 A1 EP3245407 A1 EP 3245407A1 EP 16700111 A EP16700111 A EP 16700111A EP 3245407 A1 EP3245407 A1 EP 3245407A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- jet pump
- suction jet
- suction
- pump
- stage
- 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
- 238000002485 combustion reaction Methods 0.000 claims abstract description 7
- 238000013022 venting Methods 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 14
- 239000003380 propellant Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
- F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
- F04F5/22—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating of multi-stage type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M2013/026—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure with pumps sucking air or blow-by gases from the crankcase
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M2013/027—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure with a turbo charger or compressor
Definitions
- the present invention is a multi-stage suction jet pump for sucking blow-by gases from internal combustion engines.
- active pumps for internal combustion engines are in use, which actively suck off blow-by gases, for example via vacuum pumps or impeller pumps.
- a suction jet pump with a propellant line, amaschinestrahldüse, a suction, a mixing tube and a diffuser, wherein the propulsion jet nozzle and the mixing tube are aligned with each other in a straight line. Viewed in the flow direction, the diffuser has a deviating from the course of the mixing tube course.
- a suction jet pump is provided as a pump, which regulates the negative pressure for the venting of an internal combustion engine in combination with a pressure control valve.
- a suction jet pump 7 for the venting of an internal combustion engine with a turbocharger 3 between an air filter 1 and a crankcase 4, which is characterized in that a charge air passage 5 has a branch to an at least two-stage suction jet pump 7 , wherein the input of the suction jet pump 7 is connected via the engine vent 6 with the crankcase 4 and the outlet of the suction jet pump 7 for blow-by gas recirculation 9 with the intake 2 between the air filter 1 and the turbocharger 3.
- each nozzle of the propellant jet takes a share of the gas to be pumped (blow-by gas). Due to the multi-stage, the delivered volume flow is significantly larger (factor 2, 3 or more) than with a single-stage suction jet pump. The more the better.
- suction jet pump 7 A fundamental disadvantage of the suction jet pump 7 is that it also generates a pressure loss when forced through delivery. Due to the multi-stage creates a sharply adjusted pump 7, which has no propulsion jet in the event that the internal combustion engine in the uncharged operation.
- the blow-by gas would have to be pushed through the small nozzles, creating a pressure drop that is undesirable.
- This pressure loss is not negligible with an optimally designed multi-stage suction jet pump 7 (depending on the volume flow 5 to 100 mbar). Since this disadvantage exceeds the benefits of the suction jet pump 7 under certain circumstances, is according to the invention
- at least one bypass valve 8 and / or a check valve 8 is provided, which, in the event that the suction jet pump 7 does not apply a propulsion jet, directs the blow-by gas past the pump 7 and thus the pressure loss for the latter Case minimized.
- FIG. 1 shows a preferred embodiment of the present invention.
- the blow-by gas is supplied via the turbocharger 3 and the charge air path 5 to the crankcase 4.
- the charge air path 5 has a branch, which opens into a multi-stage suction jet pump 7.
- the engine breather 6 represents a further connection between the crankcase 4 and the suction jet pump 7.
- a further branch of the engine breather 6 leads in the particularly preferred embodiment to a bypass valve 8 and / or a check valve 8, which controls the gas flow with a small or nonexistent propulsion jet in the suction jet pump 7 via the blow-by gas recirculation 9 to the intake 2 between the air filter 1 and the turbocharger 3 returns.
- valve 8 When the engine is operating in turbo mode, the valve 8 is closed due to the higher pressure downstream of the suction jet pump 7. If the engine is operating in uncharged mode, the blow-by gas can flow past the pump 7 without any pressure loss.
- the pump 7 is preferably made of plastic, for example polyamide. In this case, parts of the pump can also be depicted in the cylinder head cover 10.
- the suction jet pump 7 can also be integrated in a cylinder head cover 10.
- the entire component can be made as a module of suction jet pump 7 with the bypass valve 8 and / or the check valve 8 with hose connections.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Supercharger (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19186332.3A EP3575613B1 (en) | 2015-01-13 | 2016-01-07 | Combustion engine with multistage suction jet pump |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015200341.8A DE102015200341A1 (en) | 2015-01-13 | 2015-01-13 | Multi-stage suction jet pump |
PCT/EP2016/050164 WO2016113166A1 (en) | 2015-01-13 | 2016-01-07 | Multi-stage jet suction pump |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19186332.3A Division EP3575613B1 (en) | 2015-01-13 | 2016-01-07 | Combustion engine with multistage suction jet pump |
EP19186332.3A Division-Into EP3575613B1 (en) | 2015-01-13 | 2016-01-07 | Combustion engine with multistage suction jet pump |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3245407A1 true EP3245407A1 (en) | 2017-11-22 |
EP3245407B1 EP3245407B1 (en) | 2019-12-04 |
Family
ID=55072661
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16700111.4A Active EP3245407B1 (en) | 2015-01-13 | 2016-01-07 | Multi-stage jet suction pump |
EP19186332.3A Active EP3575613B1 (en) | 2015-01-13 | 2016-01-07 | Combustion engine with multistage suction jet pump |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19186332.3A Active EP3575613B1 (en) | 2015-01-13 | 2016-01-07 | Combustion engine with multistage suction jet pump |
Country Status (5)
Country | Link |
---|---|
US (1) | US10301987B2 (en) |
EP (2) | EP3245407B1 (en) |
CN (1) | CN107135659B (en) |
DE (2) | DE102015200341A1 (en) |
WO (1) | WO2016113166A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3063304B1 (en) * | 2017-02-28 | 2019-03-22 | Akwel | DEVICE FOR SUCTION AND DECANTATION OF A CARTER GAS AND ASSOCIATED INSTALLATION |
DE202018104879U1 (en) | 2018-08-24 | 2018-09-25 | Polytec Plastics Germany Gmbh & Co. Kg | tank ventilation |
DE102020105328B4 (en) | 2020-02-28 | 2023-06-01 | Polytec Plastics Germany Gmbh & Co. Kg | Multi-stage ejector pump for a turbocharged internal combustion engine, turbocharger for an internal combustion engine, cylinder head cover with oil separator |
DE102020118330A1 (en) * | 2020-07-10 | 2022-01-13 | Norma Germany Gmbh | Nozzle device for a jet pump and jet pump |
CN112455642B (en) * | 2020-10-29 | 2022-02-01 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Condensate water supercharging device and condensate water system based on steam injection |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US267022A (en) * | 1882-11-07 | Steam jet injector and exhauster | ||
US742618A (en) * | 1902-03-17 | 1903-10-27 | Eynon Evans Mfg Company | Blower. |
US1138125A (en) * | 1907-09-10 | 1915-05-04 | Expl Des Procedes Westinghouse Leblanc Sa | Fluid-ejector. |
DE9210497U1 (en) * | 1992-08-06 | 1993-12-09 | Volkmann, Thilo, 59514 Welver | Ejector |
DE4400958C1 (en) | 1994-01-14 | 1995-04-06 | Bayerische Motoren Werke Ag | Sucking jet pump |
DE19808548A1 (en) * | 1998-02-28 | 1999-09-02 | Itt Mfg Enterprises Inc | Negative pressure creating device for pneumatic brake amplifier of vehicle |
DE202006001287U1 (en) | 2006-01-27 | 2007-06-06 | Mann+Hummel Gmbh | Pressure control valve |
JP5289276B2 (en) * | 2009-09-30 | 2013-09-11 | 愛三工業株式会社 | Blow-by gas reduction device |
DE102010043060B4 (en) * | 2010-10-28 | 2013-12-05 | Mtu Friedrichshafen Gmbh | Crankcase and internal combustion engine |
JP5717511B2 (en) * | 2011-04-01 | 2015-05-13 | 愛三工業株式会社 | Blow-by gas reduction device for supercharged engine |
WO2013073010A1 (en) * | 2011-11-15 | 2013-05-23 | トヨタ自動車 株式会社 | Blow-by gas ventilation device |
JP2013124544A (en) * | 2011-12-13 | 2013-06-24 | Daihatsu Motor Co Ltd | Internal combustion engine |
EP2811127A4 (en) * | 2012-01-30 | 2015-07-01 | Toyota Motor Co Ltd | Blow-by gas recirculation device for internal combustion engine |
JP5812892B2 (en) * | 2012-02-17 | 2015-11-17 | 愛三工業株式会社 | Ejecta |
WO2013153096A1 (en) * | 2012-04-10 | 2013-10-17 | J. Schmalz Gmbh | Pneumatic vacuum generator with drive nozzle and receiver nozzle |
JP5664628B2 (en) * | 2012-10-16 | 2015-02-04 | トヨタ自動車株式会社 | Blow-by gas ventilation system for an internal combustion engine with a supercharger |
GB2509183A (en) * | 2012-12-21 | 2014-06-25 | Xerex Ab | Vacuum ejector with tripped diverging exit flow nozzle |
DE102013203942B4 (en) | 2013-03-07 | 2014-12-04 | Continental Automotive Gmbh | In a fuel tank of a motor vehicle arranged suction jet pump |
JP6223211B2 (en) * | 2013-09-20 | 2017-11-01 | 愛三工業株式会社 | Low pressure loop exhaust recirculation system for engine |
JP5971232B2 (en) * | 2013-12-24 | 2016-08-17 | トヨタ自動車株式会社 | Engine system control device |
JP6136979B2 (en) * | 2014-02-26 | 2017-05-31 | トヨタ自動車株式会社 | Control device for engine system |
-
2015
- 2015-01-13 DE DE102015200341.8A patent/DE102015200341A1/en not_active Withdrawn
-
2016
- 2016-01-07 US US15/542,346 patent/US10301987B2/en active Active
- 2016-01-07 DE DE202016008766.6U patent/DE202016008766U1/en not_active Ceased
- 2016-01-07 EP EP16700111.4A patent/EP3245407B1/en active Active
- 2016-01-07 CN CN201680004376.7A patent/CN107135659B/en active Active
- 2016-01-07 WO PCT/EP2016/050164 patent/WO2016113166A1/en active Application Filing
- 2016-01-07 EP EP19186332.3A patent/EP3575613B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE202016008766U1 (en) | 2019-07-25 |
EP3575613B1 (en) | 2021-07-21 |
WO2016113166A1 (en) | 2016-07-21 |
DE102015200341A1 (en) | 2016-07-14 |
US10301987B2 (en) | 2019-05-28 |
CN107135659B (en) | 2020-04-21 |
CN107135659A (en) | 2017-09-05 |
EP3245407B1 (en) | 2019-12-04 |
US20180274410A1 (en) | 2018-09-27 |
EP3575613A1 (en) | 2019-12-04 |
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