[특허]Internal combustion engine with a variable geometry compressor

GE Jenbacher GmbH & CO OHG

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특허 상세정보

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Internal combustion engine with a variable geometry compressor

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02B-033/44
미국특허분류(USC)	060/611; 060/603
출원번호	US-0232077 (2008-09-10)
등록번호	US-8220265 (2012-07-17)
우선권정보	AT-A 1433/2007 (2007-09-13)
발명자 / 주소	Greuter, Rainer Hirzinger, Johann Klausner, Johann
출원인 / 주소	GE Jenbacher GmbH & CO OHG
대리인 / 주소	Wenderoth, Lind & Ponack, L.L.P.
인용정보	피인용 횟수 : 0 인용 특허 : 6

초록
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A method is provided for operating a stationary internal combustion machine including a compressor device of variable compressor geometry which compresses gas fed to the internal combustion machine, and a throttle device which is connected downstream of the compressor device and with which the amount of compressed gas fed to the internal combustion machine is variable. The internal combustion machine is regulated by way of the actuation of at least two adjusting members, wherein the internal combustion machine is regulated to a—preferably substantially constant—engine regulating value. Upon a deviation in the engine regulating value from a reference value, the amount of gas fed to the internal combustion machine is altered by the actuation of the throttle device as the first adjusting member and by the variation in the geometry of the compressor device as the second adjusting member so that the engine regulating value is re-set to the reference value.

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1. A method of operating a stationary internal combustion machine, said method comprising: regulating the internal combustion machine to maintain a substantially constant engine regulating value by actuating at least two adjusting members including a first adjusting member comprising a compressor device having a variable compressor geometry for compressing gas fed to the internal combustion machine, and a second adjusting member comprising a throttle device connected downstream of the compressor device and configured to vary an amount of compressed gas fed to the internal combustion machine; andwhen the engine regulating value deviates from a reference value, altering the amount of compressed gas fed to the internal combustion machine to re-set the engine regulating value to the reference value by:actuating the throttle device; andvarying a geometry of the compressor device;wherein said varying of the geometry of the compressor device in a first load range is one of (i) delayed with respect to said actuating of the throttle device; (ii) slower than said actuating of the throttle device; and (iii) both delayed with respect to said actuating of the throttle device and slower than said actuating of the throttle device. 2. A method of claim 1, further comprising using the internal combustion machine to operate a generator or mechanical direct drive. 3. The method of claim 1, wherein said regulating the internal combustion machine comprises maintaining a constant rotary speed of the internal combustion machine output shaft. 4. The method of claim 1, wherein said regulating the internal combustion machine comprises maintaining a constant output power of the internal combustion machine. 5. The method of claim 1, further comprising operating the compressor device by an exhaust gas turbine. 6. The method of claim 1, further comprising cooling the gas flowing to the throttle device. 7. The method of claim 1, further comprising feeding a fuel/air mixture to the compressor device. 8. The method of claim 1, wherein said actuating of the throttle device and said varying the geometry of the compressor device are substantially synchronously in a second load range. 9. The method of claim 1, wherein, in a third load range resulting in a deviation in the engine regulating value of less than 5% from the reference value, the throttle device is positioned and held in a completely open position, and the engine regulating value is re-set to the reference value by way of said varying of the geometry of the compressor device. 10. The method of claim 1, wherein said varying of the geometry of the compressor device is delayed using at least one dead band. 11. The method of claim 10, further comprising providing an adjusting operating mode upon obtaining a deviation in the engine regulating value from a predetermined maximum value after the dead band is exceeded. 12. The method of claim 11, wherein said adjusting operating mode substantially completely opens the geometry of the compressor device. 13. The method of claim 1, wherein said varying of the geometry of the compressor device is delayed with respect to said actuating of the throttle device by fractions of a second. 14. A regulating device for regulating an engine regulating value of a stationary internal combustion machine, said regulating device comprising: a throttle device including a first adjusting member for varying a position of said throttle device; anda compressor device including a second adjusting member for varying a geometry of said compressor device, said first adjusting member and said second adjusting member being configured so that, upon a regulating deviation of the engine regulating value from a reference value, the position of said throttle device and said geometry of said compressor device will be varied so as to regulate an amount of gas fed to the internal combustion machine;a first regulator associated with said first adjusting member; anda second regulator associated with said second adjusting member;wherein a controller controls said first regulator and said second regulator to delay a variation in said geometry of said compressor device with respect to a variation in the position of said throttle device in a first load range. 15. The regulating device of claim 14, wherein said first regulator and said second regulator are configured to maintain the engine regulating value at a substantially constant reference value. 16. The regulating device of claim 14, wherein the engine regulating value is one of (i) power of the internal combustion machine, (ii) rotary speed of the internal combustion machine, and (iii) both the power and the rotary speed of the internal combustion machine. 17. The regulating device of claim 14, wherein said compressor device is configured to be driven by an exhaust gas turbine. 18. The regulating device of claim 14, wherein said first regulator and said second regulator are configured so that, in a second load range resulting in a deviation in the engine regulating value of less than 5% from the reference value, said throttle device is positioned and held in a substantially constant position, and the engine regulating value is re-set to the reference value by varying said geometry of said compressor device. 19. The regulating device of claim 14, wherein said first regulator and said second regulator are configured so that said first adjusting member and said second adjusting member are actuated upon a deviation of the engine regulating value of at least 5% from the reference value. 20. The regulating device of claim 14, wherein at least one of said first regulator and said second regulator comprises a PID-regulator. 21. The regulating device of claim 14, wherein said first regulator and said second regulator have an adjusting value limitation so that an actuation of at least one of said first adjusting member and said second adjusting member is limited such that the amount of gas fed to the internal combustion machine does not exceed a predetermined maximum value. 22. The regulating device of claim 14, wherein at least one of said first regulator and said second regulator has an associated dead band for delaying a variation in a respective one of said first adjusting member and said second adjusting member. 23. The regulating device of claim 22, wherein said dead band is configured to permit a deviation in the regulating value from the reference value of up to 5%. 24. The regulating device of claim 22, wherein said first regulator and said second regulator are configured to enter an adjusting operating mode upon a deviation in the engine regulating value by a predeterminable maximum value after said dead band is exceeded. 25. The regulating device of claim 24, wherein, in the adjusting operating mode, said first regulator and said second regulator vary the geometry of the compressor device so that said compressor device is substantially completely opened. 26. The regulating device of claim 14, wherein said first regulator and said second regulator are configured to delay a variation of the geometry of said compressor device with respect to a variation of the position of said throttle device by fractions of a second than one second. 27. A stationary internal combustion gas engine, comprising: a compressor device having a variable geometry for compressing gas fed to a block of the engine;a throttle device downstream of said compressor device for limiting an amount of compressed gas to be fed to the block of the engine;a first adjusting member for actuating said throttle device;a second adjusting member for varying a geometry of said compressor device; andat least one regulator configured to actuate said first adjusting member and said second adjusting member to maintain an engine regulating value;wherein said at least one regulator is configured to delay a variation in said geometry of said compressor device with respect to an actuation of said throttle device in a first load range. 28. The stationary internal combustion gas engine of claim 27, further comprising an exhaust gas turbine configured to drive said compressor device. 29. The stationary internal combustion gas engine of claim 28, further comprising a cooling device between said compressor device and said throttle device, said cooling device being configured to cool gas flowing to said throttle device. 30. The stationary internal combustion gas engine of claim 27, wherein the engine regulating value is a constant rotary speed of the internal combustion machine. 31. The stationary internal combustion gas engine of claim 27, wherein the engine regulating value is a constant output power of the internal combustion machine. 32. The stationary internal combustion gas engine of claim 27, further comprising a mixing device upstream of said compressor device for mixing fuel and air. 33. The stationary internal combustion gas engine of claim 27, wherein said at least one regulator is configured to delay a variation of the geometry of said compressor device with respect to a variation of the position of said throttle device by fractions of a second. 34. A generator having the stationary internal combustion gas engine of claim 27.

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Internal combustion engine with a variable geometry compressor

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Internal combustion engine with a variable geometry compressor

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