摘要:
A fuel injection device for smooth discharge of a gas accumulated therein comprising a fuel pump, a solenoid valve for injecting pressurized fuel into the intake passage of an engine, a high-pressure fuel passage extending from the fuel pump to the solenoid valve and has a medially positioned constant-pressure chamber, and a fuel return passage (38) connected to a fuel return pipe, with the fuel return passage extending from the constant- pressure chamber and having a medially positioned priming pump. The constant-pressure chamber is configured with the top wall in the upper space thereof disposed above the opening of the high-pressure fuel passage opposite the solenoid valve, the fuel return passage opens into the upper space at a position above the opening of the high-pressure fuel passage, and the gas accumulating in the constant-pressure chamber is discharged from the upper space toward the fuel tank via the fuel return passage.
摘要:
Leakage of silicon melt is monitored and touch of a seed crystal at the silicon melt is detected, and in addition, reinforcement of a vitreous silica crucible to be endurable during pulling for a long time and decrease of impurity concentration of a silicon single crystal can be expected. A method for manufacturing a silicon single crystal is provided. The method includes: detecting touching status of a seed crystal at silicon melt by supplying voltage V1 using a crucible side as a negative electrode and a wire side as a positive electrode and by monitoring change of the voltage, when the seed crystal provided at a front end of the wire touches the silicon melt inside a vitreous silica crucible; devitrifying an inner surface of the vitreous silica crucible as supplying voltage V2 using the crucible side as a positive electrode and the wire side as a negative electrode during a temperature control period; and growing a silicon single crystal by slowly pulling the seed crystal as supplying voltage V3 using the crucible side as a negative electrode and the wire side as a positive electrode after the temperature control period.
摘要:
According to an aspect of the present invention, there is provided an information processing apparatus that is operable in a first operation state and a second operation state, the apparatus including: a history storage unit configured to accumulate: a power usage reduction that is calculated based on a power usage difference between the first operation state and the second operation state; and an acquisition time at which the power usage reduction is acquired; an adding-up unit configured to add up values of the power usage reduction for a given period thereby calculating a power usage reduction amount; and an image generation unit configured to generate an image indicating a difference between the power usage reduction amount and a target value therefor and to display the image on a display device.
摘要:
A recording device that records information in an optical recording medium includes: a self excited oscillation semiconductor laser including a saturable absorber section to apply a bias voltage and a gain section to inject a gain current, and also emitting a laser light to record the information in the optical recording medium; a reference signal generation unit generating a master clock signal and also supplying an injection signal synchronized with the master clock signal to the gain section of the self excited oscillation semiconductor laser; and a recording signal generation unit generating a recording signal based upon the master clock signal and also applying the recording signal to the saturable absorber section of the self excited oscillation semiconductor laser as the bias voltage.
摘要:
An electronic device includes a replaceable component; a battery that supplies power to the component and is removably attachable; an enclosure that includes a component housing opening in which the component is housed and a battery housing opening which is adjacent to the component housing opening and in which the battery is housed; and a lid that covers the component housing opening and forms a part of an outer surface of the enclosure. The lid includes a covering section which covers the component housed in the component housing opening and an extending section that extends toward the battery housing opening. The battery prevents a removableness of the lid from the component housing opening by covering the extending section when the battery is housed in the battery housing opening.
摘要:
An ultrashort pulse/ultra-high power laser diode with a simple structure and configuration is provided. In a method of driving a laser diode, the laser diode is driven by a pulse current which is 10 or more times higher than a threshold current value. The width of the pulse current is preferably 10 nanoseconds or less, and the value of the pulse current is specifically 0.4 amperes or over.
摘要:
An ultrashort pulse/ultra-high power laser diode with a simple structure and configuration is provided. In a method of driving a laser diode, the laser diode is driven by a pulse current which is 10 or more times higher than a threshold current value. The width of the pulse current is preferably 10 nanoseconds or less, and the value of the pulse current is specifically 0.4 amperes or over.
摘要:
Provided is a driving method of a mode-locked semiconductor laser device comprising a laminated structure in which a first compound semiconductor layer, a third compound semiconductor layer having an emission region and a second compound semiconductor layer are successively laminated, a second electrode, and a first electrode. The laminated structure is formed on a compound semiconductor substrate having polarity, the third compound semiconductor layer includes a quantum well structure having a well layer and a barrier layer. The well layer has a depth of 1 nm or more and 10 nm or less. The barrier layer has an impurity doping density of 2×1018 cm−3 or more and 1×1020 cm−3 or less. An optical pulse is generated in the emission region by passing a current from the second electrode to the first electrode via the laminated structure.
摘要:
[Object] To ensure that the flow rate required during high-speed operation can be adequately provided in a fuel injection device for injecting/supplying fuel to an engine.[Means] There is provided a fuel injection device (3) comprising electricity-generating means for generating electricity by the rotation of an engine (1) and outputting a predetermined signal, and a solenoid valve (30) for injecting fuel, the valve being opened as a result of a drive current being applied to a coil, and the fuel being injected into an intake passage (10) of the engine (1) at a predetermined timing during the rotation period of the engine, wherein the electricity-generating means is an alternating current generation means (31) attached to the engine (1) in a crank angle position at which an output is generated in synchronization with the intake timing of the engine; the signal is an injection command signal applied to the solenoid valve (30) as an alternating-current drive current; and the applied voltage increases with increased engine speed.
摘要:
A disclosed liquid container containing liquid to be supplied to a liquid discharge head includes a container main body defining a liquid containing section and including an opening section formed in one surface of the container main body, the opening section including an opening; and a film-like flexible member sealing the opening section of the container main body. Further, the film-like flexible member is joined with a joint section formed on the opening section of the container main body in a state where the film-like flexible member is bent, and a concave-convex structure is formed in the circumferential direction of the joint section.