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1. 发明授权

US5233826A Method for starting and operating an advanced regenerative parallel compound dual fluid heat engine-advanced cheng cycle (ACC) 失效
标题翻译：先进再生并联复合双流体热机 - 先进循环（ACC）的启动和运行方法
公开(公告)号：US5233826A
公开(公告)日：1993-08-10
申请号：US942150
申请日：1992-09-08
申请人： Dah Y. Cheng
发明人： Dah Y. Cheng
IPC分类号： F01K21/04
CPC分类号： F01K21/047 , Y02E20/14
摘要： A method of operation of an Advanced Cheng Cycle heat engine comprising: (a) initializing start conditions in the gas turbine engine and the heat recovery steam generator with the control system; (b) setting the control valve means for idle flow condition of the heat engine; (c) pressurizing the drum with the compressed gas source to approximately the desired operating pressure of the heat recovery steam generator; (d) starting the gas turbine engine from idle to full load as limited by maximum allowed turbine inlet temperature; and (e) throttling second working fluid flow rate with the control valve means and shutting off the compressed gas source, after the sensor system indicates that heat recovery steam generator pressure is higher than compressor discharge pressure. Throttling is performed in accordance with the following operating parameters: (i) second working fluid temperature as injected into the turbine less than or substantially equal to first working fluid temperature at the compressor outlet, and (ii) maximization of heat recovery from the turbine exhaust for a given peak efficiency mixture ratio of second working fluid to first working fluid in the turbine, so that heat recovery exchanger pinch temperature is minimized.
摘要翻译：一种先进城循环热机的运行方法，包括：（a）利用控制系统初始化燃气轮机和热回收蒸汽发生器的起动条件; （b）设定用于所述热机的怠速状态的所述控制阀装置; （c）用压缩气体源将滚筒加压到热回收蒸汽发生器的大致期望的操作压力; （d）将燃气涡轮发动机从空载启动到满载，由允许的最大涡轮入口温度限制; 和（e）在传感器系统指示热回收蒸汽发生器压力高于压缩机排放压力之后，利用控制阀装置节流第二工作流体流量并关闭压缩气体源。根据以下操作参数进行节流：（i）注入到涡轮机中的第二工作流体温度低于或基本等于压缩机出口处的第一工作流体温度，以及（ii）从涡轮机排气口最大化热回收对于第二工作流体对涡轮机中的第一工作流体的给定峰值效率混合比，使得热回收交换器夹紧温度最小化。

2. 发明授权

US5170622A Advanced regenerative parallel compound dual fluid heat engine Advanced Cheng Cycle (ACC) 失效
标题翻译：先进再生并联复合双流体热力发动机高级循环（ACC）
公开(公告)号：US5170622A
公开(公告)日：1992-12-15
申请号：US679444
申请日：1991-04-02
申请人： Dah Y. Cheng
发明人： Dah Y. Cheng
IPC分类号： F01K21/04
CPC分类号： F01K21/047 , Y02E20/14
摘要： A Cheng cycle, dual-fluid heat engine comprising a compressor for compressing a first working fluid, having a compressor outlet; a combustion chamber in fluid communication with the compressor outlet; a turbine having an inlet in fluid communication with the combustion chamber for performing work by expansion of working fluid, and a turbine exhaust. The engine also has a heat recovery exchanger coupled to the turbine exhaust for heating thereby, having a heat recovery exchanger inlet and an outlet for heating a second working fluid; and an injector for introducing heated second working fluid from the heat recovery exchanger into the turbine. The engine has a coolant inlet port for introducing coolant having a temperature less than the first working fluid temperature at the compressor outlet, to at least one of turbine nozzles and blades in the turbine. The engine has control valve means for selectively throttling flow rate of second working fluid into the turbine in accordance with the following operating parameters: (i) second working fluid temperature as injected into the turbine less than or substantially equal to first working fluid temperature at the compressor outlet, and (ii) maximization of heat recovery from the turbine exhaust for a given peak efficiency mixture ratio of second working fluid to first working fluid in the turbine, so that heat recovery exchanger pinch temperature is minimized. The control valve means is connected upstream of the injector.
摘要翻译：一种循环双流体热机，包括用于压缩第一工作流体的压缩机，具有压缩机出口; 与压缩机出口流体连通的燃烧室; 涡轮机具有与燃烧室流体连通的入口，用于通过工作流体的膨胀进行作业，以及涡轮机排气。发动机还具有联接到涡轮机废气的热回收交换器，从而加热，具有热回收交换器入口和用于加热第二工作流体的出口; 以及用于将加热的第二工作流体从热回收交换器引入到涡轮机中的喷射器。发动机具有用于将具有小于压缩机出口处的第一工作流体温度的温度的冷却剂引导到涡轮机中的涡轮喷嘴和叶片中的至少一个的冷却剂入口。发动机具有控制阀装置，用于根据以下操作参数选择性地将第二工作流体的流量节流到涡轮机中：（i）注入到涡轮机中的第二工作流体温度小于或基本上等于第一工作流体温度压缩机出口，以及（ii）对于给定的第二工作流体与涡轮机中的第一工作流体的峰值效率混合比率，从涡轮机排气口最大化热回收，使得热回收交换器夹紧温度最小化。控制阀装置连接在喷射器的上游。

3. 发明授权

US4790269A Method and apparatus for improved start-up procedures in conventional steam power generators and dual fluid cheng cycle engines 失效
标题翻译：常规蒸汽发电机和双流体循环发动机改进启动程序的方法和装置
公开(公告)号：US4790269A
公开(公告)日：1988-12-13
申请号：US176933
申请日：1988-04-04
申请人： James Hamill , Ramarao Digumarthi , William Conlon , Dah Y. Cheng , Chung-Nan Chang
发明人： James Hamill , Ramarao Digumarthi , William Conlon , Dah Y. Cheng , Chung-Nan Chang
IPC分类号： F01B29/12 , F01K21/04 , F02G3/00 , F22D7/00
CPC分类号： F02G3/00 , F01B29/12 , F01K21/047 , Y02E20/14
摘要： An improved procedure for cold start-up of closed loop boiler set and Cheng cycle system wherein the venting step, the boiler swelling problem and blowdown step of the conventional start-up are eliminated by use of an external pressure source to increase the operating pressure in the evaporator section which minimizes premature phase change and accompanying volume increase.
摘要翻译：闭环式锅炉组和郑循环系统的冷启动改进方法，其中通过使用外部压力源来消除常规启动的排气步骤，锅炉膨胀问题和排污步骤，以增加工作压力蒸发器部分使过早的相变和伴随的体积增加最小化。

4. 发明授权

US4735043A Method and apparatus for improved start-up procedures in conventional steam power generators and dual fluid Cheng cycle engines 失效
标题翻译：用于改进常规蒸汽发电机和双流体循环发动机的启动程序的方法和装置
公开(公告)号：US4735043A
公开(公告)日：1988-04-05
申请号：US752570
申请日：1985-07-08
申请人： James Hamill , Ramarao Digumarthi , William Conlon , Dah Y. Cheng , Chun-Nan Chang
发明人： James Hamill , Ramarao Digumarthi , William Conlon , Dah Y. Cheng , Chun-Nan Chang
IPC分类号： F01B29/12 , F01K21/04 , F02C3/30 , F02G3/00 , F22B35/04
CPC分类号： F01B29/12 , F01K21/047 , F02G3/00 , Y02E20/14
摘要： An improved procedure for cold start-up of closed loop boiler set and Cheng cycle system wherein the venting step, the boiler swelling problem and blowdown step of the conventional start-up are eliminated by use of an external pressure source to increase the operating pressure in the evaporator section which minimizes premature phase change and accompanying volume increase.
摘要翻译：闭环式锅炉组和郑循环系统的冷启动改进方法，其中通过使用外部压力源来消除常规启动的排气步骤，锅炉膨胀问题和排污步骤，以增加工作压力蒸发器部分使过早的相变和伴随的体积增加最小化。

5. 发明授权

US4419242A Composite membrane for a membrane distillation system 失效
公开(公告)号：US4419242A
公开(公告)日：1983-12-06
申请号：US350078
申请日：1982-02-18
申请人： Dah Y. Cheng , Steve J. Wiersma
发明人： Dah Y. Cheng , Steve J. Wiersma
IPC分类号： B01D3/14 , B01D61/36 , B01D67/00 , B32B27/08 , B01D3/02 , B01D13/00
CPC分类号： B01D69/12 , B01D61/364 , B32B27/08 , Y10S159/27
摘要： A composite membrane separates a distilland and a distillate, such as salt water and fresh water. The composite membrane comprises a thin lyophobic microporous layer or membrane and a thin lyophilic layer or membrane on both sides of the lyophobic membrane or on the distillate side. Evaporation and condensation takes place within the micropores of the lyophobic membrane. The lyophilic layer on the distilland side prevents intrusion of distilland into the pores of the lyophobic layer. The lyophilic layer on the distillate side changes the surface curvature of the liquid/vapor interface in a manner which enhances the distillation rate through the membrane.

6. 发明授权

US4419187A Apparatus and method for thermal membrane distillation 失效
标题翻译：热膜蒸馏装置和方法
公开(公告)号：US4419187A
公开(公告)日：1983-12-06
申请号：US354711
申请日：1982-03-04
申请人： Dah Y. Cheng , Steve J. Wiersma
发明人： Dah Y. Cheng , Steve J. Wiersma
IPC分类号： B01D3/14 , B01D61/36 , B32B27/08 , B01D3/02
CPC分类号： B01D61/364 , B01D69/12 , B32B27/08 , Y10S159/27 , Y10S203/18
摘要： Apparatus and method for improved thermal membrane distillation utilizes a composite membrane comprised of a microporous lyophobic layer having deposited thereon an essentially nonporous lyophilic coating.
摘要翻译：用于改进热膜蒸馏的装置和方法利用由沉积有基本上无孔的亲液涂层的微孔疏液层组成的复合膜。

7. 发明授权

US5197509A Laminar flow elbow system and method 失效
标题翻译：层压流体系统及方法
公开(公告)号：US5197509A
公开(公告)日：1993-03-30
申请号：US534146
申请日：1990-06-06
申请人： Dah Y. Cheng
发明人： Dah Y. Cheng
IPC分类号： F15D1/04 , F16L43/00
CPC分类号： F16L43/00 , F15D1/04 , Y10T137/0357 , Y10T137/0391
摘要： A means and method of design and installation of a pre-rotator ahead of an elbow are disclosed in order to eliminate or reduce elbow-induced turbulence in pipe flows. Experimental verification was conducted, and noise and pressure loss for flow around the elbow can be substantially reduced.
摘要翻译：公开了一种在弯头之前设计和安装预旋转器的方法和方法，以便消除或减少管道流中的弯头引起的湍流。进行了实验验证，可以大大减少肘管周围流动的噪声和压力损失。

8. 发明授权

US4680927A Control system for Cheng dual-fluid cycle engine system 失效
标题翻译：程双液循环发动机系统控制系统
公开(公告)号：US4680927A
公开(公告)日：1987-07-21
申请号：US758683
申请日：1985-07-25
申请人： Dah Y. Cheng
发明人： Dah Y. Cheng
IPC分类号： F01K21/04 , F02C3/30 , F02C7/00
CPC分类号： F01K21/047 , F02C3/30 , Y02E20/14
摘要： A control system is disclosed for controlling Cheng dual-fluid cycle engines over a wide operating range to maintain high efficiency under partial load conditions.
摘要翻译：公开了一种在宽工作范围内控制程双流体循环发动机的控制系统，以在部分负荷条件下保持高效率。

9. 发明授权

US4549397A Control system for Cheng dual-fluid cycle engine system 失效
公开(公告)号：US4549397A
公开(公告)日：1985-10-29
申请号：US476456
申请日：1983-03-18
申请人： Dah Y. Cheng
发明人： Dah Y. Cheng
IPC分类号： F01K21/04 , F02C3/30 , F02C7/00
CPC分类号： F02C3/30 , F01K21/047 , Y02E20/14
摘要： A control system is disclosed for controlling Cheng dual-fluid cycle engines over a wide operating range to maintain high efficiency under partial load conditions.

10. 发明授权

US4476024A Method and apparatus for distillation 失效
标题翻译：蒸馏方法和装置
公开(公告)号：US4476024A
公开(公告)日：1984-10-09
申请号：US406481
申请日：1982-08-09
申请人： Dah Y. Cheng
发明人： Dah Y. Cheng
IPC分类号： B01D67/00 , B32B27/08 , B01D13/00
CPC分类号： B01D61/364 , B01D69/12 , B32B27/08 , Y10S159/27
摘要： A composite membrane structure is used in a distillation apparatus and method. The composite membrane separates a distilland and a distillate, such as salt water and fresh water. The composite membrane comprises a thin lyophobic microporous layer or membrane and a thin lyophilic layer or membrane. Evaporation and condensation takes place within the micropores of the lyophobic membrane. The lyophilic layer prevents intrusion of distilland into the pores of the lyophobic layer.
摘要翻译：在蒸馏装置和方法中使用复合膜结构。复合膜分离出馏出物和馏出物，如盐水和淡水。复合膜包括薄的疏液微孔层或膜和薄的亲液层或膜。蒸发和冷凝发生在疏液膜的微孔内。亲液层防止蒸馏物侵入疏液层的孔中。

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