Patent application number | Description | Published |
20090071438 | Method and device for controlling starting of gas engine - A method and device for controlling starting of a gas engine is proposed which is superior in starting performance and improved in load responsivity while maintaining air fuel ratio control. | 03-19-2009 |
20090071439 | Method and device for integrative control of gas engine - An integrative control method and device for controlling gas engines is proposed which is improved load responsivity of the engine while maintaining air fuel ratio control. The control method comprises a speed control process for controlling engine rotation speed by calculating a command value of fuel gas flow rate based on deviation of a detected engine rotation speed from a target command value of engine rotation speed and controlling fuel gas flow rate flowing through the fuel gas flow control valve to coincide with the calculated command value of fuel gas flow rate, and an air fuel ratio control process for controlling air fuel ratio of fuel-air mixture supplied to the combustion chamber of the engine through performing feedback control in which such a command value of fuel-air mixture flow rate is calculated that air fuel ratio of the mixture is appropriate with the fuel gas flow flowing at the commanded fuel gas flow rate and a target opening of the throttle valve is determined based on deviation of the actual mixture flow rate calculated based on detected values of operating conditions of the gas engine from the calculated command value of fuel-air mixture flow rate. | 03-19-2009 |
20090076708 | Method and device for integrative control of gas engine - An integrative control method and device for controlling gas engines is proposed which is improved load responsivity of the engine in transient operation. The control method comprises a speed control process for controlling engine rotation speed by controlling the fuel gas flow control valve based on deviation of actual engine rotation speed from a target command value of rotation speed, and an air fuel ratio control process for controlling air fuel ratio of fuel-air mixture by controlling throttle valve opening based on deviation of the actual mixture flow rate from the command value of mixture flow rate, whereby at least either fuel gas flow correction or fuel-air mixture flow correction is performed when time-series variation of input signals relating to performance change of the gas engine exceeds a reference range determined beforehand, the fuel gas flow correction being performed by correcting control variables of the fuel gas flow control valve in the speed control process, and the mixture flow correction being performed by correcting opening of the throttle valve in the air fuel ratio control process. | 03-19-2009 |
20090076709 | Method and device for integrative control of gas engine - An integrative control method and device for controlling gas engines is proposed which load responsivity of the engine is improved while maintaining air fuel ratio control and stable control is performed when fuel gas of different calorific value is used. The control method comprises a speed control process for controlling engine rotation speed by controlling the fuel gas flow control valve based on deviation of actual engine rotation speed from a target command value of rotation speed, and an air fuel ratio control process for controlling air fuel ratio of fuel-air mixture by controlling throttle valve opening based on deviation of the actual mixture flow rate from the command value of mixture flow rate, whereby correction of theoretical air fuel ratio in accordance with exhaust temperature is performed in the air fuel ratio control process, the correction being done to correct the theoretical air fuel ratio used to calculate the command value of fuel-air mixture flow rate in accordance with exhaust temperature based on deviation of actual exhaust temperature from target exhaust temperature prescribed for various engine rotation speeds and load factors. | 03-19-2009 |
Patent application number | Description | Published |
20140110809 | METHOD OF MANUFACTURING SOLID-STATE IMAGING DEVICE AND SOLID-STATE IMAGING DEVICE - According to one embodiment, a method of manufacturing a solid-state imaging device includes a trench forming process, a concave portion forming process, a coating process, and a burying process. In the trench forming process, a trench is formed at the position to isolate a plurality of photoelectric conversion elements. In the concave portion forming process, a concave portion is formed at the position to form a light shielding film of shielding at least part of subject light incident on an adjustment photoelectric conversion element used for an image quality adjustment of an imaged image. In the coating process, inner circumferential surfaces of the trench and the concave portion are coated with an insulating film. In the burying process, a light shielding member is buried inside the trench and the concave portion whose inner circumferential surface are coated with the insulating film. | 04-24-2014 |
20140183606 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - According to an embodiment of the invention, there is provided a method of manufacturing a semiconductor device. The method of manufacturing the semiconductor device includes forming a trench downward from an upper face of a semiconductor layer at a position where an element isolation area is formed in the semiconductor layer, and melting the upper face of the trench-formed semiconductor layer to close an open end of the trench. | 07-03-2014 |
20150325614 | METHOD OF MANUFACTURING SOLID-STATE IMAGING DEVICE AND SOLID-STATE IMAGING DEVICE - According to one embodiment, a method of manufacturing a solid-state imaging device includes a trench forming process, a concave portion forming process, a coating process, and a burying process. In the trench forming process, a trench is formed at the position to isolate a plurality of photoelectric conversion elements. In the concave portion forming process, a concave portion is formed at the position to form a light shielding film of shielding at least part of subject light incident on an adjustment photoelectric conversion element used for an image quality adjustment of an imaged image. In the coating process, inner circumferential surfaces of the trench and the concave portion are coated with an insulating film. In the burying process, a light shielding member is buried inside the trench and the concave portion whose inner circumferential surface are coated with the insulating film. | 11-12-2015 |