WO2017042014A1 - Transmission par courroie d'un moteur à combustion interne et moteur à combustion interne - Google Patents

Transmission par courroie d'un moteur à combustion interne et moteur à combustion interne Download PDF

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Publication number
WO2017042014A1
WO2017042014A1 PCT/EP2016/069649 EP2016069649W WO2017042014A1 WO 2017042014 A1 WO2017042014 A1 WO 2017042014A1 EP 2016069649 W EP2016069649 W EP 2016069649W WO 2017042014 A1 WO2017042014 A1 WO 2017042014A1
Authority
WO
WIPO (PCT)
Prior art keywords
internal combustion
combustion engine
friction clutch
belt drive
pulley
Prior art date
Application number
PCT/EP2016/069649
Other languages
German (de)
English (en)
Inventor
Andreas Kellner
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2017042014A1 publication Critical patent/WO2017042014A1/fr

Links

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
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/14—Friction clutches with outwardly-movable clutching members co-operating with the inner surface of a drum or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/76—Friction clutches specially adapted to incorporate with other transmission parts, i.e. at least one of the clutch parts also having another function, e.g. being the disc of a pulley
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
    • F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
    • F16D25/065—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutching members having a movement which has at least a radial component
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts

Definitions

  • the present invention relates to a belt drive of an internal combustion engine and an internal combustion engine with belt drive.
  • ancillary components such as an alternator such as an alternator, a water pump, an air conditioning compressor or a vacuum pump are driven by a belt directly from an internal combustion engine in vehicles.
  • an alternator such as an alternator
  • a water pump such as a water pump
  • an air conditioning compressor such as a vacuum pump
  • a high efficiency in the drive of such ancillaries can be achieved.
  • one disadvantage is that when the internal combustion engine is at a standstill, e.g. by a start-stop system or during a sailing phase of the vehicle, the internal combustion engine is at a standstill, e.g. by a start-stop system or during a sailing phase of the vehicle, the internal combustion engine is at a standstill, e.g. by a start-stop system or during a sailing phase of the vehicle, the internal combustion engine is at a standstill, e.g. by a start-stop system or during a sailing phase of the vehicle, the internal combustion engine is at a standstill, e.g. by
  • Ancillaries also stand still. This can for example cause disadvantages in an air conditioning system of the vehicle or a cooling of the internal combustion engine.
  • one or more of the accessories could be electrically powered by an electric drive. As a result, however, additional energy must be provided by the electric drive.
  • one or more electric drives also increase the weight of the vehicle.
  • the belt drive according to the invention has a particularly simple and inexpensive construction.
  • the belt drive according to the invention is virtually maintenance-free and is very robust, so that it over a lifetime of the engine completely remains operational. This is inventively achieved in that the belt drive a first and second pulley and the two
  • a clutch is integrated, which according to the invention is a friction clutch and has a first and a second friction surface.
  • the first pulley is hollow and the first belt surface is provided on an inner jacket portion of the pulley.
  • the friction clutch particularly preferably has a structure corresponding to a drum brake of a vehicle. Particularly preferably, the
  • Friction clutch thereby at least a first and a second jaw, wherein the second friction surface of the friction clutch is formed on the inner shell region of the first pulley facing surfaces of the first and second jaw.
  • the friction clutch according to the invention in the manner of a drum brake has the further advantage that no adjustment device is necessary, since during operation no slip and thus no lining wear, such as. in a drum brake during braking, to decelerate a vehicle occurs. Therefore, no adjustment device or the like must be provided in the friction clutch.
  • the friction clutch is in the non-actuated state in the open state. That when not in operation, the friction clutch is disengaged.
  • the friction clutch further comprises a hydraulic connection, a first piston connected to the first jaw and a second piston connected to the second jaw.
  • the first and second pistons are arranged on a common hydraulic chamber.
  • Hydraulic fluid flows into the common hydraulic space, the two pistons are moved radially outward, so that the friction clutch is engaged.
  • a valve element is provided in order to establish or interrupt a connection of a hydraulic pressure supply circuit to the hydraulic chamber.
  • the friction clutch comprises a restoring element, in particular a spring element.
  • the restoring element brings the second friction surface of the first friction surface out of engagement.
  • the first and second jaws of the friction clutch are connected to each other via a support bearing.
  • the support bearing is preferably with a shaft,
  • the present invention relates to an internal combustion engine arrangement comprising an internal combustion engine and a belt drive according to the invention.
  • the internal combustion engine arrangement is designed such that an output shaft of the internal combustion engine is connected to the friction clutch.
  • the output shaft is connected to the first and second jaw of the friction clutch.
  • the friction clutch is for one
  • Hydraulic channel through which a hydraulic fluid can be supplied to the friction clutch.
  • valve element in a supply line from
  • Hydraulic pressure supply circuit of the internal combustion engine provided for friction clutch.
  • the valve element is arranged to connect the
  • the second pulley of the belt drive with an electric machine and / or at least one accessory of the
  • Auxiliary units by establishing a connection via the friction clutch in first pulley are operated or disconnected by interrupting the connection of the internal combustion engine and are operated by means of the electric machine.
  • the friction clutch according to the invention has a
  • Hydraulic accumulator over which a function of the friction clutch, i. engagement of the friction clutch is possible when the internal combustion engine is at a standstill.
  • Figure 1 is a schematic view of a
  • Figure 2 is a schematic representation of a belt drive
  • Figure 3 is a schematic representation of a belt drive with
  • Friction clutch according to a second embodiment of the invention.
  • the internal combustion engine arrangement 1 comprises an internal combustion engine 3 and a belt drive 2.
  • the belt drive 2 comprises a belt 20 as traction means first pulley 21 and a second pulley 22.
  • the belt 20 connects the first pulley 21 with the second pulley 22.
  • the first pulley 21 is connected via an output shaft 4 with a
  • the second pulley 22 is with
  • Auxiliary units an electric machine 7 and an air compressor 6.
  • the output shaft 4 of the internal combustion engine 3 drives the first pulley 21, so that torque can be transmitted via the belt 20 and the second pulley 22 to the ancillaries.
  • a friction clutch 10 is now arranged in the first belt pulley 21.
  • the friction clutch 10 is constructed in the manner of a drum brake and comprises a first friction surface 1 1 and a second friction surface 12.
  • the first friction surface 1 1 is formed on an inner jacket portion of the first pulley 21.
  • the second friction surface 12 is divided on two surfaces on a first jaw 13 and a second jaw 14.
  • the two jaws 13, 14 are connected to each other via a support bearing 19.
  • a hydraulic chamber 17 is arranged at the opposite end of the jaws 13, 14 of the support bearing 19.
  • a first piston 15 and a second piston 16 in the hydraulic chamber 17 is arranged.
  • the first piston 15 is connected to the first jaw 13 and the second piston 16 is connected to the second jaw 14.
  • a return element 8 is also arranged in the form of a tension-spring element.
  • the hydraulic chamber 17 is connected via a hydraulic line 5 with a
  • Hydraulic pressure supply circuit of the internal combustion engine 3 connected.
  • the hydraulic line 5 is provided in the output shaft 4 of the internal combustion engine 3. Via a branch line 50, the hydraulic line 5 is then connected to the hydraulic chamber 17.
  • a hydraulic port 18 is provided, on which the stub 50 ends.
  • the hydraulic chamber 17 is directly connected to the hydraulic circuit of
  • valve element 9 can also be arranged.
  • the valve element 9 is a three / two-way valve and can connect to the hydraulic pressure supply circuit of
  • FIG. 2 shows the connection with the hydraulic circuit of the internal combustion engine, whereby pressure in the hydraulic chamber 1 7 can be performed so that the first and second piston move radially outward to the first and second jaw 13, 14 to be applied to the first friction surface 1 1 on the inner shell portion of the first pulley 21.
  • This is indicated in Figure 1 by the arrows A and B.
  • valve element 9 In order to disengage the friction clutch 10, the valve element 9 is switched to the second position, so that a connection between the hydraulic chamber 17 and the hydraulic sump 90 is made, so that the pressure in the hydraulic chamber 1 7 decreases. This allows the return element 8, the two pistons 1 5, 16 return to the starting position and the second friction surface 12 on the first and second jaw 13, 14 out of engagement with the first friction surface 1 first
  • the friction clutch 10 can be opened even when the engine 3 is running, so that one or more ancillary units on the
  • Belt drive 2 can be switched off.
  • FIG. 3 shows a friction clutch 10 according to a second exemplary embodiment of the invention.
  • the friction clutch 10 In contrast to the first embodiment, the
  • Friction clutch 10 of the second embodiment additionally still a
  • Memory 30 on. As can be seen from Figure 3, the memory 30 by switching the valve element 9 with the hydraulic chamber 1 7 in conjunction to be brought. Thereby, a pressure in the hydraulic chamber 17 can be increased even when the internal combustion engine 3 is out of operation and a hydraulic pressure of the internal combustion engine is not present to the
  • Frictional coupling 10 to be engaged.
  • the engagement of the friction clutch 10 then takes place via the pressure stored in the memory 30.
  • the memory 30 via a line 32 in which a check valve 31 is arranged, with the hydraulic supply line 33 from
  • Hydraulic pressure supply circuit of the internal combustion engine connected.
  • Hydraulic pressure supply circuit and the memory 30 is again pressurized and thus stands for a next stoppage of the internal combustion engine, e.g. when a start-stop system of the internal combustion engine turns off before a traffic light or the like, again available.
  • valve element 9 designed as a three / two-way valve valve element 9 can also be replaced by two 2/2-way valve.
  • a cost-effective and robust friction clutch in the manner of a drum brake in a belt 21 of a belt drive 2 can be integrated.
  • no additional space is required for a coupling between the engine and the ancillaries.
  • friction clutch 10 in the manner of a drum brake, a known mass production technology can be used as a friction clutch device.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Pulleys (AREA)

Abstract

La présente invention concerne une transmission par courroie d'un moteur à combustion interne, cette transmission comprenant une première poulie de courroie (21), une seconde poulie de courroie (22) et un lien souple (20) reliant la première et la seconde poulie de courroie (21, 22). Un embrayage est intégré dans la première poulie de courroie (21), cet embrayage étant un embrayage à friction (10) et présentant une première surface de friction (11) et une seconde surface de friction (12), et la première poulie de courroie (21) est creuse, la première surface de friction (11) étant située sur une zone intérieure de la première poulie de courroie (21).
PCT/EP2016/069649 2015-09-11 2016-08-18 Transmission par courroie d'un moteur à combustion interne et moteur à combustion interne WO2017042014A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015217368.2A DE102015217368A1 (de) 2015-09-11 2015-09-11 Riementrieb einer Brennkraftmaschine sowie Brennkraftmaschine
DE102015217368.2 2015-09-11

Publications (1)

Publication Number Publication Date
WO2017042014A1 true WO2017042014A1 (fr) 2017-03-16

Family

ID=56799456

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/069649 WO2017042014A1 (fr) 2015-09-11 2016-08-18 Transmission par courroie d'un moteur à combustion interne et moteur à combustion interne

Country Status (2)

Country Link
DE (1) DE102015217368A1 (fr)
WO (1) WO2017042014A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB356549A (en) * 1930-01-16 1931-09-10 Hans Wottle Improvements in or relating to clutches for the transmission of motion from a constantly rotating driving shaft to a belt pulley or like device
GB601354A (en) * 1945-11-06 1948-05-04 Reavell & Company Ltd Improvements in or relating to friction clutches
US2454271A (en) * 1944-03-27 1948-11-23 Timken Axle Co Detroit Friction coupling device
DE102012023206A1 (de) * 2012-11-28 2014-05-28 Man Truck & Bus Ag Zugmittelantrieb zum Antrieb von Nebenaggregaten in einem Kraftfahrzeug
DE102013209291A1 (de) * 2013-05-21 2014-11-27 Schaeffler Technologies Gmbh & Co. Kg Kupplungsanordnung für einen Nebenaggregatetrieb und Verfahren zum Betrieb einer Kupplungsanordnung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB356549A (en) * 1930-01-16 1931-09-10 Hans Wottle Improvements in or relating to clutches for the transmission of motion from a constantly rotating driving shaft to a belt pulley or like device
US2454271A (en) * 1944-03-27 1948-11-23 Timken Axle Co Detroit Friction coupling device
GB601354A (en) * 1945-11-06 1948-05-04 Reavell & Company Ltd Improvements in or relating to friction clutches
DE102012023206A1 (de) * 2012-11-28 2014-05-28 Man Truck & Bus Ag Zugmittelantrieb zum Antrieb von Nebenaggregaten in einem Kraftfahrzeug
DE102013209291A1 (de) * 2013-05-21 2014-11-27 Schaeffler Technologies Gmbh & Co. Kg Kupplungsanordnung für einen Nebenaggregatetrieb und Verfahren zum Betrieb einer Kupplungsanordnung

Also Published As

Publication number Publication date
DE102015217368A1 (de) 2017-03-16

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