EP2405111A1 - Moteur à combustion interne doté d'un dispositif de chargement pour comprimer un gaz de fonctionnement - Google Patents

Moteur à combustion interne doté d'un dispositif de chargement pour comprimer un gaz de fonctionnement Download PDF

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Publication number
EP2405111A1
EP2405111A1 EP11005447A EP11005447A EP2405111A1 EP 2405111 A1 EP2405111 A1 EP 2405111A1 EP 11005447 A EP11005447 A EP 11005447A EP 11005447 A EP11005447 A EP 11005447A EP 2405111 A1 EP2405111 A1 EP 2405111A1
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
charging device
operating gas
bypass line
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Withdrawn
Application number
EP11005447A
Other languages
German (de)
English (en)
Inventor
Sebastian Franz
Jürgen Licht
Stefan Cölsch
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.)
Handtmann Systemtechnik GmbH and Co KG
Original Assignee
Handtmann Systemtechnik GmbH and Co KG
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 Handtmann Systemtechnik GmbH and Co KG filed Critical Handtmann Systemtechnik GmbH and Co KG
Publication of EP2405111A1 publication Critical patent/EP2405111A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • F02B33/446—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs having valves for admission of atmospheric air to engine, e.g. at starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/32—Engines with pumps other than of reciprocating-piston type
    • F02B33/34—Engines with pumps other than of reciprocating-piston type with rotary pumps
    • F02B33/36—Engines with pumps other than of reciprocating-piston type with rotary pumps of positive-displacement type

Definitions

  • the invention relates to an internal combustion engine with a charging device for compressing an operating gas according to the preamble of claim 1.
  • the air for the internal combustion engine via an air filter to an exhaust gas charger and from this to a charge air cooler and finally to the internal combustion engine is passed.
  • the charger is driven by an exhaust gas turbine, whereby the sucked air is compressed accordingly.
  • the compression increases the temperature of the air for the internal combustion engine, which would lead to a reduction in the efficiency of the internal combustion engine. For this reason, this temperature increase is due to the existing Intercooler at least partially balanced or completely compensated.
  • the supercharger is bypassed via a bypass or a bypass line, wherein the bypass is designed for direct supply of air from the air filter for the internal combustion engine according to the above-mentioned publications.
  • the bypass not only bridges the charger, but also the intercooler.
  • an actuator or a valve is provided according to the above-mentioned documents, which is controlled by a control unit or an electronic control unit.
  • the object of the invention is in contrast to propose an internal combustion engine with a charging device, which can not only be operated with less effort, but also has an improved mode of operation.
  • an inventive invention Internal combustion engine characterized in that the actuator is designed as an automatic check valve.
  • the bypass with the automatic check valve advantageously opens when the charging device can not deliver sufficient volume flow, e.g. idle or in the suction mode of the internal combustion engine, so that the pressure in the flow direction behind the charger or the charging device is lower than in the area in front of the charger or the charging device. Accordingly, in the flow direction of the air or the operating gas at the beginning of the bypass, a higher pressure than at the end of the bypass, so that the automatic check valve according to the invention advantageously automatically opens so far until it comes to a pressure equalization and additional operating gas or air the internal combustion engine can be supplied.
  • the automatic check valve according to the invention ensures that no operating gas or air can flow backwards through the bypass, that is, from the region of the internal combustion engine of the intake tract in the direction of the air filter.
  • a check valve is far less prone to failure than a elaborate electronic control.
  • the charging device is designed as a volume flow of the operating gas controllable charging device.
  • a speed control of the charging device which is advantageously decoupled from the operation of the internal combustion engine or its speed and / or exhaust gas volume flow, an advantageous adaptation to a variety of operating conditions of the internal combustion engine, inter alia during load changes or high dynamics can be achieved.
  • a graded or continuously variable speed control is provided.
  • the volume flow control or speed control of the charging device can be realized for example by means of a gear or gearless by mechanical and / or hydraulic and / or pneumatic and / or electronic components. Due to the advantageous decoupling of the charging device from the rotational speed or the operating state of the internal combustion engine, an optimization of the supplied air or the charged volume flow amount for the internal combustion engine can be achieved.
  • the branch point of the bypass line can be arranged, for example, in the flow direction of the operating gas behind the air filter or directly in front of the charging device.
  • the air filter comprises at least the branch point of the bypass line.
  • the air filter has two flow outlets. One which leads by means of appropriate line to the charger or to the charging device and a second opening leading to the self-acting check valve according to the invention or to the bypass and thus directly to the internal combustion engine. This reduces the design complexity of the charging system according to the invention.
  • the check valve according to the invention at least one valve body with advantageously directed against the flow direction of the operating gas or the intake air spring force acted upon return spring for closing a valve seat by means of the valve body at least at pressure equalization in the bypass line.
  • This ensures that a particularly low design effort for realizing the automatic, automatic operation of the check valve is realized according to the invention.
  • an advantageous selection / adaptation of the return spring and / or the aerodynamics of the valve body an exact adjustment of the operating conditions or parameters such as size of the desired / optimal opening differential pressure, etc., can be implemented, in which the check valve opens.
  • this also ensures that the volume flow amount that flows through the check valve is optimally adapted to the needs of the internal combustion engine even in the partially opened area.
  • At least one setting unit is provided for setting an opening differential pressure of the check valve.
  • this advantageous adjustment unit for example, an adaptation to a wide variety of internal combustion engines and / or vehicles can be realized.
  • the bias of the return spring and / or the aerodynamics of the valve body can be adjusted or adjusted in an advantageous manner.
  • the aerodynamics of the valve body can be realized by an exchange or the use of different, possibly standardized valve body.
  • FIG. 1 schematically an internal combustion engine 1 with a charger 2 for charging an intake air for the internal combustion engine 1 is shown.
  • the charging device 2 shown here is a mechanical charging device 2 which is not charged or driven by the exhaust gas of the internal combustion engine 1, but mechanically.
  • an exhaust gas turbocharger or the like can be used as a charging device 2.
  • a charge air cooler 3 which cools the compressed, heated charge air in a known manner, so that the internal combustion engine 1 does not have to accept corresponding losses of efficiency due to warm intake air.
  • a bypass 4 is provided, which has a branch point 5 arranged behind an air filter 8 in the flow direction 15 of the intake air and ends at a connection point 6 behind the intercooler 3. This means that through the bypass 4 shorting or bypassing the Auflade réelles 2 and the intercooler. 3 is realized.
  • FIG. 2 the branch point is replaced by a branch 7 in the air filter 8.
  • the air filter 8 according to the example of FIG. 2 having two outflow openings for the air.
  • the bypass 4 a check valve 9.
  • the check valve 9 operates automatically or opens automatically when in a region I, a lower pressure than in an area II of the bypass 4 is present. This can occur when the charger 2 can not carry sufficient volume flow, for example, when idling or in the suction operation of the internal combustion engine. 1
  • FIG. 3 is a check valve 9 according to the invention schematically in section in both the closed ( FIG. 3a ) as well as in the open position ( FIG. 3b ).
  • a valve body 10 in the closed position according to FIG. 3a a valve seat 12 of a valve housing 11 completely seals, in particular by means of a sealing ring 13.
  • the valve body 10 is pressed by means of a return spring 14 against the valve seat 12 and the flow direction 15 of the air.
  • the bias of the return spring 14 can be adjusted in an advantageous manner, without being shown in detail in the figures.
  • valve body 10 is adjusted in the flow direction 15 of the air and ensures a free passage through the bypass 4.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
EP11005447A 2010-07-05 2011-07-05 Moteur à combustion interne doté d'un dispositif de chargement pour comprimer un gaz de fonctionnement Withdrawn EP2405111A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010026141 2010-07-05

Publications (1)

Publication Number Publication Date
EP2405111A1 true EP2405111A1 (fr) 2012-01-11

Family

ID=44581914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11005447A Withdrawn EP2405111A1 (fr) 2010-07-05 2011-07-05 Moteur à combustion interne doté d'un dispositif de chargement pour comprimer un gaz de fonctionnement

Country Status (2)

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EP (1) EP2405111A1 (fr)
DE (1) DE102011106979A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017122260A1 (fr) * 2016-01-12 2017-07-20 正裕 井尻 Dispositif de suralimentation de moteur à combustion interne

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017204253A1 (de) 2017-03-14 2018-09-20 Robert Bosch Gmbh Ventil
DE102017003282A1 (de) * 2017-04-04 2018-10-04 Liebherr-Components Colmar Sas Elektrische Stromversorgung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1375931A (en) * 1917-11-06 1921-04-26 Rateau Auguste Camille Edmond Pertaining to internal-combustion aircraft-motors
US1802720A (en) * 1928-01-26 1931-04-28 Junkers Hugo Valve
DE3420015A1 (de) 1984-05-29 1985-12-05 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Mehrzylinder-brennkraftmaschine mit zwei abgasturboladern
US4875454A (en) * 1987-02-17 1989-10-24 Mazda Motor Corporation Supercharging apparatus for an internal combustion engine
EP0253076B1 (fr) 1986-07-12 1990-10-03 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Procédé pour contrôler une soupape d'évacuation d'un turbochargeur de suralimentation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1375931A (en) * 1917-11-06 1921-04-26 Rateau Auguste Camille Edmond Pertaining to internal-combustion aircraft-motors
US1802720A (en) * 1928-01-26 1931-04-28 Junkers Hugo Valve
DE3420015A1 (de) 1984-05-29 1985-12-05 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Mehrzylinder-brennkraftmaschine mit zwei abgasturboladern
EP0253076B1 (fr) 1986-07-12 1990-10-03 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Procédé pour contrôler une soupape d'évacuation d'un turbochargeur de suralimentation
US4875454A (en) * 1987-02-17 1989-10-24 Mazda Motor Corporation Supercharging apparatus for an internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017122260A1 (fr) * 2016-01-12 2017-07-20 正裕 井尻 Dispositif de suralimentation de moteur à combustion interne

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Publication number Publication date
DE102011106979A1 (de) 2012-01-05

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