• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    To efficiently recover excess energy available in a turbo supercharger (4) operated by exhaust gases from an internal combustion engine (ICE) (1), when the loading of the ICE exceeds about half of rated load, a hydraulic pump-motor unit (10) is coupled to the shaft of the turbo supercharger. The hydraulic unit (10) provides output over a hydraulic line (14) through a selectively operated valve (30) to either a hydraulic motor (15), which is coupled to an energy utilization system, for example a generator (17), or to return hydraulic fluid to a sump or suply (11). A controller (21) controls operation of the valve. If the exhaust gases are insufficient to provide excess energy for the hydraulic motor (15), the valve is controlled to return hydraulic fluid form said motor-pump unit so that, in effect, said unit (10) is idling. If the energy from the exhaust gases of the ICE is insufficient to provide necessary supercharged air, an auxiliary pump (27) driven by an electric motor (26) is operated to provide hydraulic pressure fluid to said unit (10), which will then operate as a motor, to drive the supercharging compressor shaft. The controller also selectively controls operation of the motor (26) driving the auxiliary pump (27) and operation of the valve (30) for selective supply of fluid from the unit (10) to the hydraulic motor (15) coupled to the energy utilization system or back to the supply (11).
    公开号:SU1517766A3
    申请号:SU4028104
    申请日:1986-09-11
    公开日:1989-10-23
    发明作者:Бухер Якоб
    申请人:М.А.Н.-Б. Унд В.Дизель Гмбх (Фирма)；
    IPC主号:
    专利说明:

    ate

    26

    sn
    3151
    through the check valve 29, an auxiliary pump 27 with an electric motor 26 is connected. If two 1 are designed as a powerful two-stroke diesel engine, then at startup, acceleration and modes with a load below 50% of power, the control unit 21 switches on the pump 27, switches the machine 10 to ; The kime of the hydraulic motor (i) translates the valve 30 to a position in which the pipeline 14 communicates with the drainage duct 31. The power of the hydraulic motor is regulated by the control unit 21. Depending on the set charge pressure and / or the frequency of rotation of the engine shaft at a power higher than
    This invention relates to supercharged internal combustion engines by means of a turbocharger.
    The purpose of the invention is to increase the efficiency of the engine.
    Fig. 1 is a diagram of an engine, a turbocharger, and an apparatus for converting excess energy of exhaust gases; Fig. 2 is a diagram of the connection of the hydromotor with the motor shaft; Fig. 3 shows the communication circuit of the motor with the engine and the connection circuit of the controlled clutch to the control unit, an option; Fig. 4 is a diagram of the simultaneous connection of a hydromotor with an engine and a generator; FIG. 3 is a diagram of the connection of a hydrator with one of the auxiliary units of the cooling and lubrication systems.
    The engine 1 of the internal combustion, in particular a powerful diesel engine, is made with gas exhaust 2 and charge 3 manifolds. A turbocharger 4 is connected to the engine, the turbine 5 of which operates on the exhaust gases of the engine and is connected to the gas exhaust manifold 2, and the compressor 6 is connected to the supreme pressure collector 3. The turbine and compressor impellers are located on a common shaft 7 that is not connected with a water shaft 8 engine.
    The exhaust gas turbocharger 4 is of such high efficiency that the exhaust gas energy can be greater than that which requires the engine to supply such an amount of air as necessary to ensure an optimum excess air coefficient of less than 6
    50% of the nominal, the machine 10 is transferred to work in the pump mode, the auxiliary pump 27 is switched off
    and turning valve 30 into a position that allows the use of the hydraulic motor 15. The machine 10 consumes the excess energy of the TK turbine and transfers it to the hydraulic motor, and that one to the consumer, the electric generator
    internal combustion or ancillary unit of cooling and lubrication systems. The control unit may be provided with a microprocessor that matches power consumption with engine parameters. 5 hp ff, 5 ill.
    neck least in the upper load range; this energy can be converted to mechanical energy with an appropriate device.
    The shaft 7 of the turbocharger 4 through the gearbox 9 is kinematically connected to a reversible hydraulic machine 10 connected to the oil reservoir 11 through the intake manifold 12, equipped with a check valve 13, which passes the oil only in the suction direction. The exhaust pipe 14 of this machine is connected to the hydraulic motor 15. which is communicated by its drain 16 to the tank 11. The hydraulic motor 15 can give up its power to the consumer.
    FIG. 1 shows an example in which the only power consumer is an electric generator 17. The hydraulic motor in this case is high-speed.
    Figure 2 shows a low-speed hydraulic motor. It is connected to the shaft 8 of the engine 1 through a controlled clutch 18 and an elastic clutch 19 of torsional vibrations. The clutch 18 is made overrunning.
    Fig. 3 shows a high-speed hydraulic motor, which is connected to the engine shaft through a gearbox 20 and a controllable clutch 22 connected to the control unit 21. In this embodiment, the clutch 22 can also be overtaken.
    Figure 4 shows a diagram of a coupling of a s11 electric generator with an engine shaft through a gearbox 23 and with a high-speed hydraulic motor through a clutch 22. Electro515
    generator 24 is made of high speed. In this case, depending on the power of the motor, either the power of the engine 1 being expended to drive the electric generator 2A decreases, or the excess power of the motor is transmitted to the shaft 8 of the engine through the included clutch 22. Between the shaft 8 of the engine and the gearbox 23 an elastic clutch 19 is installed.
    In Fig. 5, unit 25 is shown as a power consumer of a hydromotor, which is one of the auxiliary units of the cooling and lubrication systems, for example, a pump, a fan, and the like. If necessary, a reducer can be installed between this unit and the hydraulic motor.
    In all cases, regardless of the type of power consumed by the hydraulic motor 15, the excess energy of the exhaust gases is converted into mechanical energy with engine loads exceeding 50% of the rated power.
    The control unit 21 contains a control device formed by a computer, in particular a microprocessor, and regulates the transfer of power from the motor based on the actual values of operating parameters measured by sensors, such as boost pressure P. and / or exhaust gas temperature Cd and / or set filling amount Fg.
    At the same time, the listed elements make it possible to use the energy of the internal combustion engine in the starting and accelerating modes for accelerating the turbocharger 4, in particular, if the engine implies a two-stroke diesel power. For this, additional elements are provided that are activated in those engine operating modes in which the exhaust gas energy is insufficient. The electric motor 26 for driving the auxiliary pump 27 is connected to the control unit 21. The pump sucks the oil from the tank 11 and delivers through the pipe 28 into the inlet pipe 12 of the reversible machine. In the pipe 28 is installed a check valve 29, which allows oil only in the direction of the inlet pipe. The switching valve 30 is made with an electric drive, installed in the exhaust pipe 14 reversible ma
    PINS and provided with a drain channel 31. When the switching valve is moved, the connection of the reversible machine 10c is interrupted by the hydraulic motor 15 and the oil from the pipeline 14 is discharged into the reservoir via the drainage channel 31. The control of the movement of the switching valve is carried out simultaneously with the switching on of the electric motor 26, corresponds to the duration of the switching on of the electric motor n and is produced according to the parameters P and / or Fg and the signal of the speed sensor of the drive shaft of the motor p. The control unit 21 is also connected to the oil pressure sensor 32 in the intake manifold 12 and the oil pressure sensor 33 in the exhaust manifold.
    The turbocharger 4 is designed with such high efficiency that when the engine power exceeds approximately 50% of the nominal, the turbine develops a known power.
    At lower loads and in those cases when an additional drive of the turbocharger is not required, the capacity of the reversible hydraulic machine is set to zero using the control unit, i.e. feed is set to the minimum value. For this, the switching valve is moved to a position in which the pipeline 14 communicates with the drainage duct 31. The reversible machine is not in operation.
    Auxiliary pump 27 is used on a powerful two-stroke diesel engine in acceleration and start-up modes, when there is not enough exhaust gas energy. To do this, during the start of this diesel, the following processes occur. First of all, through an appropriate command from the control unit 21, the pump 27 is driven into rotation, which injects oil through the pipeline 12 into the reversible hydraulic machine 10. The switching valve 30 is in a position in which the pipeline 14 is not connected to the hydraulic motor 15. but communicates with the channel 31 a drain, whereby the oil pumped by the pump 27 returns to the reservoir 11. In addition, by means of the control unit 21, the volume of the reversible machine is installed to operate it in the engine mode with a power depending on the oil pressure in the pipeline 12 detected by the sensor 32. The control unit adjusts the oil pressure in accordance with the amount of power required to rotate the turbocharger in the engine 1 start mode. As soon as turbocharger A is accelerated to the required rotation frequency, the powerful two-stroke diesel engine is started by any known method controlled compressed air supply.
    Starting a four-stroke diesel engine can
    be carried out without performing the above operations. In a powerful two-stroke diesel engine is reversible, the machine continues to operate in engine mode up to about 40% of the rated power. With increasing power, the rotational speed of the turbocharger increases and the volumetric flow through the engine 10 operating in engine mode decreases. To control the flow, the pressure sensed by the sensor 32 is converted into an electrical signal, which is compared in control unit 21 with a predetermined value. The difference between the measured and set values produces a change in the volume of the hydraulic machine. ten.
    As soon as the power of the internal combustion engine 1 exceeds approximately 50% of the rated power, the auxiliary pump is turned off and the control valve is moved on command from the control unit depending on the boost pressure corresponding to this power and / or the rotational speed of the internal combustion engine shaft. The oil flow from the reversible machine 10 is directed to the hydraulic motor 15 The reversible machine starts to operate in pump mode. In those cases when there is a controlled clutch 22, it is activated by the signal of the control unit 21. If this clutch is made overrunning, in the form of clutch 18, it is activated with a corresponding mismatch of the frequencies of rotation of the motor shaft and the engine shaft. Regardless, the control unit sets the volume flow of the machine 10 (in pump mode) so that the pressure detected by the sensor 33 reaches a predetermined value. According to the charge pressure P and / or the exhaust gas temperature T (and / or the predetermined filling value F-. At this value, the pressure in the pipeline 14 is set so that each operating point of operation
    an engine with a power of approximately 50% of the nominal excess power of the turbine 5 was taken by the reversible machine 10 as a pump and transferred to the motor 15, which in turn would transmit it to the connected consumer: the electric generator 17, the drive shaft 8 of the internal combustion engine, simultaneously the drive shaft 8 internal combustion engine and electric generator 24 or unit 25.
    All of these processes are reversed as the power of the internal combustion engine decreases, for example, from full load to partial load ranges.
    权利要求:
    Claims (6)
    [1]
    1. A supercharged internal combustion engine containing a turbocharger, the turbine of which is connected to the engine exhaust manifold, the charge air compressor is connected to the engine's supercharge receiver, and the turbine and compressor wheels are located on a common shaft, a reversible adjustable-capacity hydraulic machine that is kinematically connected with the turbocharger shaft, communicated with the tank through the inlet pipe, fitted with a check valve, and connected to the outlet pipe, in which a switching valve is installed, equipped with a reservoir discharge channel and a position setting body, which is connected to the boost pressure sensor and pressure sensors in the inlet and outlet pipes, a hydraulic motor connected by its input to the outlet pipe of a reversible hydraulic machine and communicated by its drain to the tank, and auxiliary units of cooling and lubrication systems, characterized in that, in order to improve efficiency, the engine is additionally equipped with an exhaust temperature sensor, a sensor and the sensor complements the rotational speed of the drive shaft of the engine, an additional check valve, an auxiliary pump and an electric motor with vyk.pyuchatelem for pump drive, wherein the position reference body of the switching valve is designed as a control unit which is connected between
    0
    five
    0
    five
    0
    five
    15
    a switching valve and a pressure sensor, is additionally connected to the sensors for the exhaust gas temperature and rotation frequency, and is connected to the auxiliary pump drive motor switch, and the input is connected to the reservoir and
     to aPG; eGD additional check valve - to the inlet pipeline of a reversible hydraulic machine.
    [2]
    2. The motor according to claim 1, of which the control unit is equipped with a microprocessor.
    [3]
    3. Pop-1 engine, characterized in that the hydraulic motor is connected to the engine shaft through an elastic
    and the friction clutch and the last sub-ipHiHa to the control unit.
    FIG. 2
    6610
    [4]
    4. Engine pop. 1, characterized in that it is equipped with an electric generator and the latter is kinematically connected to a hydraulic motor.
    [5]
    5. The engine according to claim 4, which means that the disconnectable coupling is installed between the generator and the hydraulic motor, the latter is connected to the control unit, and
    the electric generator is additionally kinematically coupled to the drive shaft of the engine through transmission with a torsional vibration damping clutch.
    [6]
    6. Engine pop.1, characterized in that the hydraulic motor is kinematically connected with one of the auxiliary units of the cooling and lubrication systems.
    Fi.Z
    类似技术:
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    同族专利:
    公开号 | 公开日
    US4729225A|1988-03-08|
    FR2594887B1|1989-12-15|
    JPH0768912B2|1995-07-26|
    JPS62111124A|1987-05-22|
    FR2594887A1|1987-08-28|
    DE3532938C1|1986-09-18|
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    法律状态:
    2005-05-10| REG| Reference to a code of a succession state|Ref country code: RU Ref legal event code: MM4A Effective date: 20030912 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE3532938A|DE3532938C1|1985-09-14|1985-09-14|Internal combustion engine charged by means of an exhaust gas turbocharger with an exhaust gas excess energy conversion device|
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