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21. 发明专利

JPH08246817A EXHAUST HEAT RECOVERY SYSTEM 失效
公开(公告)号：JPH08246817A
公开(公告)日：1996-09-24
申请号：JP7441695
申请日：1995-03-06
申请人： OSAKA GAS CO LTD
发明人： FUJIMOTO HIROSHI , MATSUMURA SHOJIRO , HIRAOKA TSUTOMU , NAKATANI KOSUKE
IPC分类号： F01N5/02 , F01D15/08 , F01K25/06 , F01K25/10 , F02B39/08 , F02G5/00 , F02G5/02 , F02G5/04
摘要： PURPOSE: To improve refrigeration performance and usatiblity by generating water vapor from exhaust heat from a low temperature exhaust heat source which generates exhaust heat of a temperature lower than a boiling point of water. CONSTITUTION: After cooling an engine, cooling water is supplied to a regenerator 14. Ammonia-water mixture fluid is heated to generated ammonia vapor which is used as a heat source of an absorption type refrigerator. Engine combustion exhaust gas is supplied to an exhaust gas boiler 7, for heating the ammonia- water mixture fluid and generating water vapor. The water vapor is supplied to a steam turbine 9 whereby a supercharger 19 of a mirror cycle gas engine 1 is driven.

22. 发明专利

JPH08144850A EXHAUST HEAT RECOVERY SYSTEM 失效
公开(公告)号：JPH08144850A
公开(公告)日：1996-06-04
申请号：JP30558294
申请日：1994-11-14
申请人： OSAKA GAS CO LTD
发明人： FUJIMOTO HIROSHI , NAKATANI KOSUKE , MATSUMURA SHOJIRO
IPC分类号： F02B39/08 , F01K23/06 , F01K23/10 , F01K25/00 , F01K25/06 , F01K25/10 , F02G5/04
摘要： PURPOSE: To improve general usability and to heighten steam generating efficiency by generating steam even through exhaust heat discharged from a low temperature exhaust heat source to generate the exhaust heat having temperature lower than the boiling point of water for recovering the above steam as motive power. CONSTITUTION: A cooling water after cooling an engine is supplied to a low temperature steam generating device 7, and ammonia-water mixed fluid is thereby heated to generate ammonia vapor, which is supplied to a low pressure steam turbine 9, and further engine combustion exhaust gas is supplied to a high temperature steam generating device 12 to heat the ammonia-water system mixed fluid for generating steam, and this steam is supplied to a high pressure steam turbine 13, and power is taken out from a power taking out shaft 16 connected interlockingly to both the steam turbines 9, 13. In addition to that, the liquid component of ammonia-water mixed fluid fed from the high temperature steam generating device 12 is atomizedly supplied to an absorber 10 to facilitate the liquefaction of vapor component.

23. 发明专利

JP2001248500A FUEL GAS SUPPLY STRUCTURE FOR GAS ENGINE 失效
公开(公告)号：JP2001248500A
公开(公告)日：2001-09-14
申请号：JP2000060785
申请日：2000-03-06
申请人： OSAKA GAS CO LTD
发明人： MATSUMURA SHOJIRO , HAYASHI HIDEKAZU , MATSUSHITA YOICHI
IPC分类号： F02M21/02 , F02B43/00
摘要： PROBLEM TO BE SOLVED: To easily secure required fuel supply flow and to mix fuel with air in an excellent state, without increasing supply pressure of fuel gas. SOLUTION: This structure is constituted so as to insert a straight tube- shaped injection pipe 10 into an intake pipe 5 which is communicated and connected with an engine cylinder via an intake valve and sucks and supplies air, to provide the injection pipe 10 with a fuel injection hole 11 to supply fuel gas in a state that fuel is dispersed in a flowing direction of intake air and a peripheral direction, to communicate and connect the injection pipe 10 with a fuel supply pipe, to supply fuel gas by being dispersed in the flowing direction of intake air and to successively mix fuel gas with intake air.

24. 发明专利

JP2001132550A GAS FUEL ENGINE 失效
公开(公告)号：JP2001132550A
公开(公告)日：2001-05-15
申请号：JP31123999
申请日：1999-11-01
申请人： OSAKA GAS CO LTD
发明人： MATSUMURA SHOJIRO , MATSUSHITA YOICHI
IPC分类号： F02M21/04 , F02B43/00 , F02M21/02
摘要： PROBLEM TO BE SOLVED: To provide a gas fuel engine capable of continuously operating even in the case of conducting maintenance of a booster. SOLUTION: In the gas fuel engine formed in such a constitution that fuel gas boosted up by the booster 4 is injected and supplied from a supercharger 3 to an intake passage 2 or a cylinder chamber 1a, an axially supplying means B for supplying fuel gas before pressure is boosted up by the booster 4 to an intake passage disposed upstream the supercharger 3 is arranged freely to convert a fuel supplying condition into a supplying action condition and a stop condition.

25. 发明专利

JP2001050055A ENGINE SYSTEM AND ENGINE CHARGE COOLING METHOD 失效
公开(公告)号：JP2001050055A
公开(公告)日：2001-02-23
申请号：JP22232699
申请日：1999-08-05
申请人： OSAKA GAS CO LTD
发明人： FUJIMOTO HIROSHI , FUKAE MAMORU , FUJIWAKA TAKAO , AIDA YASUKI , MATSUMURA SHOJIRO
IPC分类号： F02B39/00 , F02B67/00
摘要： PROBLEM TO BE SOLVED: To improve efficiency of an engine system by cooling charge air further. SOLUTION: This engine system comprises an engine 1 equipped with a supercharger 2 in a charging passage for super-charging charge air I and an absorbent refrigerator 70 that cools a refrigerant W by an evaporator 30. This engine system further comprises, in the charging passage, a first radiator 10 that performs water-cooling or air-cooling of the charge air I, and a second radiator 20 that cools the charge air I emitted from the first refrigerator 10 with a refrigerant W of the absorbent refrigerator 70a or cold water b refrigerated by the refrigerant W.

26. 发明专利

JP2000304375A LATENT HEAT RECOVERY TYPE ABSORPTION WATER COOLER HEATER 失效
公开(公告)号：JP2000304375A
公开(公告)日：2000-11-02
申请号：JP11057199
申请日：1999-04-19
申请人： OSAKA GAS CO LTD
发明人： FUJIMOTO HIROSHI , MATSUMURA SHOJIRO , SUGIYAMA OSAMU
IPC分类号： F02G5/04 , F25B15/00 , F25B27/02
摘要： PROBLEM TO BE SOLVED: To increase the quantity of the cold heat energy which can be taken out from an absorption water cooler heater by increasing the quantity of heat recovered from the exhaust gas of a high-temperature exhaust heat source with a simple constitution. SOLUTION: An absorption water cooler heater is provided with a single effect absorption refrigerating machine composed of a regenerator 9, an absorber 12, a condenser 10, and an evaporator 14 and the jacket cooling water generated from a gas engine 1 is supplied to the regenerator 9 through a circulating pipeline 8. A water- lithium bromide solution is supplied from the absorber 12 to the regenerator 9 through a pipeline 16 and, at the same time, the solution is partially taken out by connecting a branch pipeline 18 to the midway of the pipeline 16 and the taken out solution is supplied to the regenerator 9 separately from the remaining part of the solution supplied to the regenerator 9 through the pipeline 16. The exhaust gas generated from the gas engine 1 is taken out through a gas pipeline 4 and, at the same time, a heat exchanger 19 is provided between the pipeline 4 and branched pipeline 18 and the water-lithium bromide solution is heated by utilizing the latent heat of condensation of the exhaust gas from the gas engine 1.

27. 发明专利

JPH11350920A EXHAUST HEAT RECOVERY SYSTEM 失效
公开(公告)号：JPH11350920A
公开(公告)日：1999-12-21
申请号：JP9783399
申请日：1999-04-05
申请人： OSAKA GAS CO LTD
发明人： FUJIMOTO HIROSHI , MATSUMURA SHOJIRO , SUGIYAMA OSAMU
IPC分类号： F01N5/02 , F01K23/02 , F01K25/10 , F02G5/04 , F25B15/00 , F25B27/02
摘要： PROBLEM TO BE SOLVED: To efficiently recover exhaust heat either from low temperature or high temperature heat source and to increase steam turbine output. SOLUTION: In this exhaust heat recovery system, high temperature exhaust gas from a gas engine 1 flows in a high temperature steam generator 5 and then to a low temperature steam generator 6 generating steam of ammonia- water mixture fluid. A high temperature side steam turbine 9 is driven by steam generated by the high temperature steam generator 5, and a low temperature side steam turbine 16 is driven by steam generated by the low temperature steam generator 6. The exhaust heat from the gas engine 1 is recovered as electric power or motive power. In addition, coolant that has cooled the engine is supplied to a regenerator 14, and steam which has passed the low temperature side steam turbine 16 is supplied to an absorber 17. Then, steam generated by heating the ammonia-water mixture fluid is used as a heat source for the absorbing type freezer to obtain cold water.

28. 发明专利

JPH08177626A EXHAUST HEAT RECOVERY SYSTEM 失效
公开(公告)号：JPH08177626A
公开(公告)日：1996-07-12
申请号：JP33561394
申请日：1994-12-20
申请人： OSAKA GAS CO LTD
发明人： NAKATANI KOSUKE , FUJIMOTO HIROSHI , OKUDA KOJI , MATSUMURA SHOJIRO
IPC分类号： F01P3/20 , F02G5/00 , F25B27/02
摘要： PURPOSE: To make unstabilization avoidable in control due to an installation part of an inlet temperature sensor, by giving a delay of time corresponding to a deviation between an actual installation part of the inlet temperature sensor and an optimum installation part where arrival time of cooling water agrees with operating time of necessary heat radiation. CONSTITUTION: In the first comparator means 19 of a microcomputer 17, a measured temperature by a cooling water temperature sensor 15 is compared with the first present temperature, to output a drive signal to a driver 18 through a control regulating means 24. In a change factor arithmetic means 25, a measured temperature by an inlet temperature sensor 16 of cooling water is input, to calculate this change factor. Further in the third comparator means 21, the change factor is compared with a preset value, to calculate an opening of a three-way valve 12. On the other hand, in the second comparator means 20, a measured temperature by the inlet temperature sensor 16 is compared with the second preset temperature, to output a priority signal to the control regulating means 24 through a time delay means 23. In the time delay means 23, the drive signal is output with a delay by the delay time set in a delay time setter 29.

29. 发明专利

JPH08151922A EXHAUST HEAT RECOVERY SYSTEM 失效
公开(公告)号：JPH08151922A
公开(公告)日：1996-06-11
申请号：JP31903194
申请日：1994-11-28
申请人： OSAKA GAS CO LTD
发明人： NAKATANI KOSUKE , FUJIMOTO HIROSHI , OKUDA KOJI , MATSUMURA SHOJIRO
IPC分类号： F01P7/16 , F02G5/00
摘要： PURPOSE: To increase the temperature of cooling water supplied to an engine cooling part as high as possible so as to improve an exhaust heat recovery rate by setting an opening in the vicinity of the valve opening side end of a fully closed side head band to a minimum valve opening in the fully closed side of a three-direction valve for supplying no cooling water to an exhaust heat exchanger. CONSTITUTION: An absorption refrigerating machine 6 as an exhaust heat recovery part and a hot water supplier 7 are connected in parallel with each other to a main piping 5 connected to the outlet and inlet of the engine cooling part of a gas engine 1 and an exhaust heat exchanger 14 is connected via a three-direction valve 12 and a bypass piping 13 to a cooling water supply side piping downstream more than a connected spot with the return piping 8b of this main piping 5. In this case, for the three-direction valve 12, an opening close to the valve opening side end part of a dead band in a fully closed side for supplying no cooling water to the exhaust heat exchanger 14 is set to a minimum valve opening. Thus, the amount of demanded exhaust heat is steeply reduced and after the temperature of cooling water to be returned to the engine 1 begins to increase, a time for returning the cooling water temperature to the set temperature is made short.

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