摘要:
A choke valve is controlled finely suited to the running state of an engine. A throttle valve 8 and a choke valve 9 are provided in series on an intake pipe 6, and the opening degree of the choke valve 9 is controlled by a stepping motor. The choke valve opening degree upon start of engine (start opening degree) is determined depending on the engine temperature. The stepping motor 11 is initialized at the fully closed side of the choke valve 9 when the power source for starting the engine is turned on. The start opening degree of the choke valve is judged to be closer to the fully closed side or fully opened side, and the stepping motor 11 is initialized at the fully closed side if judged to be close to the fully closed side, and at the fully opened side if at the fully opened side.
摘要:
Turning on and off of the light source illuminating an object to be imaged is judged based on brightness changes in small and large areas set up in the frame and an electric charge storage time for each pixel is set up to be equal to the turning-on-and-off period of the light source or an integral multiple thereof. The charge storage time is changed over responsive to the turning-on-and-off period of the light source or the integral multiple thereof to set up a stored light amount for each pixel stepwise and difference in the stored light amount between steps is interpolated by continuous gain control of read-out signals of pixels.
摘要:
A choke valve is controlled finely suited to the running state of an engine. A throttle valve 8 and a choke valve 9 are provided in series on an intake pipe 6, and the opening degree of the choke valve 9 is controlled by a stepping motor 11. A choke valve opening degree upon start of engine (start opening degree) is determined depending on the engine temperature. The start opening degree judging unit 27 judges whether the start opening degree is closer to the fully closed side or fully opened side. The motor initializing unit 28 initializes the stepping motor 11 at the fully closed side or the fully opened side if the start opening degree is at the fully closed side or the fully opened side, respectively. After choke release, a driving signal in a specified number of steps is issued periodically.
摘要:
A liquid crystal display device can have enhanced display quality of a display screen by preventing the generation of lateral stripes on the display screen when the polarity of a gray scale voltage is inverted for every N (N≧2) lines without providing a new display control signal. In the liquid crystal display device, a gray scale voltage is applied to a plurality of pixels, and the polarity of the gray scale voltage is inverted for every N (N≧2) video lines. The polarity inversion line position at which the polarity of the gray scale voltage is changed from the positive polarity to the negative polarity or vice versa different among respective frames. Thus, the polarity inversion line position is discontinuous among continuous frames. Further, the positive polarity gray scale voltage and the negative polarity gray scale voltage are supplied to the respective pixels every N/2 times.
摘要:
A photocopier includes a toner bottle that discharges toner from an opening by a rotation, a motor that rotates the toner bottle and a contacting section provided at a position through which a protrusion of the toner bottle passes when the protrusion comes down by the rotation of the toner bottle. When the weight of the toner bottle is more than or equal to a predetermined value, the contacting section descends by the weight of the toner bottle when the protrusion passes through the contacting section, and the contacting section ascend when the protrusion passes away from the contacting section. When the weight of the toner bottle is less than a predetermined value, the contacting section doesn't descend by the weight of the toner bottle.
摘要:
It is featured that a generator can respond to a variation in the load with a generous margin regardless of the its temperature. The output current of the generator 1 is rectified with a converter 3 consisting mainly of a thyristor bridge. A direct current output of the converter 3 is then converted by an inverter 4 into an alternating current at a commercial frequency and then connected to the load 5. The engine speed is controlled so that the on state angle of the thyristors in the converter 3 is maintained to a target angle. Since the target angle is set within a range not higher than the maximum limit, the generator can constantly run with a generous margin and readily respond to a variation in the load. The target angle can be modified depending on the temperature of the generator 1 in order to inhibit the engine from being overloaded and its speed from increasing excessively.
摘要:
A process oil which satisfies the requirements of (a) a content of a polycyclic aromatic compound of less than 3% by weight, (b) a content of an aromatic hydrocarbon of 18% by weight or more, (c) a content of a polar compound ranging from 11 to 25% by weight, (d) a kinematic viscosity at 100° C. ranging from 10 to 70 mm2/s, and (e) a flash point of 210° C. or more.
摘要:
An engine operated generator is arranged to constantly respond to a change in the load with a margin of power. The output current of the generator 1 driven by an engine 2 is rectified by a converter 3 composed of a thyristor bridge structure. A direct current released from the converter 3 is converted by an inverter 4 to an alternate current at a commercial frequency and connected to a load 5. A thyristor driver circuit 9 controls the conduction of thyristors so that the voltage at the input of the inverter 4 is constant. A fuel flow controller 10 detects the conduction angle of the thyristors and the revolution of the engine 2 is controlled so that the conduction angle is converged on a target conduction angle. Since the target conduction angle is set within a predetermined range smaller than the maximum conduction angle, the generator is maintained with margins of its output and can thus provide a stable level of voltage and respond quickly to a change in the load.
摘要:
An epoxy resin encapsulating material for molding in a semiconductor chip by the use of a transfer molding device. The material has constituents of an epoxy resin, a curing agent, an inorganic filler, and a release agent. The material consists of 99 wt % or more of granules having a diameter of 0.1 to 5.0 mm and 1 wt % or less of minute particles having a diameter of less than 0.1 mm. The mass of the material exhibit an angle of slide of 20 to 40.degree., which demonstrates good flowability free from clogging a passage leading to a mold cavity in the transfer molding device, thereby assuring enhanced encapsulation quality. The material is prepared firstly by kneading the encapsulating composition having the above constituents and by solidifying the composition into a semi-cured solid body of B-stage condition. The sem-cured solid body is then pulverized into pieces having a diameter of 5.0 mm or less. The pieces are composed of granules having a diameter of 0.1 mm to 5.0 mm and minute particles having a diameter of less than 0.1 mm. Subsequently, heat is applied to melt a resin component of the encapsulating composition in the surfaces of the granules while continuously moving the granules so as to entrap the minute particles in a molten phase of the resin component. Thereafter, the molten phase is cooled to obtain epoxy resin encapsulating grains coated with a resin layer incorporating the minute particles having the diameter of less than 0.1 mm.
摘要:
In an image forming apparatus, an image processing device draws, when a start point, at least one bent point, an end point and a width of a bold line is input, the bold line by generating a plurality of rectangular areas based on a line connecting the start point and bent point, a line connecting the bent point and the end point, and the input width. Each rectangular area or box is generated such that the start and end points of a line lie at the center in the widthwise direction of the box, and such that the bent point lies at a corner of the box on the basis of the direction of rotation of the above line and a line contiguous therewith. The bent point therefore does not lie at the center of the box in the widthwise direction. When an area signal is generated based on the stored start and end points of each box in the main scanning direction, a blank is obviated despite that a bent point area is additionally generated.