摘要:
An internal combustion engine has an intake system, a fuel injector for injecting fuel into the intake system, a means for supplying pressurized fuel to the fuel injector, and a means for controlling the pressure difference between the pressurized fuel and the current value of atmospheric pressure to be substantially equal to a determinate value. In this fuel injection method, an actual fuel injection time interval is calculated by determining a basic fuel injection time interval according to engine operational parameters, and subsequently: if the current value of atmospheric pressure is higher than a certain standard value, then a reduction correction amount is applied to the basic fuel injection time interval, to derive the actual fuel injection time interval, but otherwise an increase correction amount is applied. Then the fuel injector is controlled to be open for substantially the actual fuel injection time interval. A device is also disclosed for practicing this method. Optionally, in both the above cases, the absolute value of the correction amount may diminish as the absolute value of the intake system pressure diminishes; and, further, the correction may be performed by multiplying the basic fuel injection time interval by a correction coefficient determined by adding, to the product of a first and a second correction value, a third correction value, the first correction value being a function only to intake system pressure, and the second and third correction values being functions only of ambient atmospheric pressure.
摘要:
An information processing apparatus including an audio input unit, an amplifier unit, and a controller. The audio input unit is capable of converting audio into an electric audio signal. The amplifier unit is configured to amplify the audio signal obtained by the audio input unit and capable of performing auto gain control. The controller is configured to turn off the auto gain control of the amplifier unit when an application that uses an audio recognition is executed with respect to the amplified audio signal.
摘要:
An optical connector clearing tool (1) includes a holder (2), cleaner (5), and cap (6). The holder (2) includes, e.g., a cylindrical slider (10), a cylindrical body (12) installed to be rotatable and movable in the axial direction with respect to the slider (10), and a slider return spring (13) which biases the body (12) forward to return the slider (10) to the initial position. The slider (10) has a pair of elastic pieces (16) having guide projections (17). In the outer circumferential surface of the body (12), spiral grooves (25, 26) with which the guide projections (17) engage are formed within the angular range of 360°. When the slider (10) moves forward, the body (12) rotates by the cam action of the guide projections (17) and spiral grooves (25, 26). The cleaner (5) includes, e.g., a cleaning thread (41) accommodated in a rotary pod (40), a supply reel (42), a take-up reel (43), and a cleaning pin (44), and is connected to the body (12). The rotary pod (40) and cleaning pin (44) rotate together with the body (12), and the cleaning thread (41) supplied to the distal end face of the cleaning pin (44) cleans the connection surface of an optical connector. The cleaning thread (41) is supplied from the supply reel (42) and taken up to the take-up reel (43) by being given tension by the rotation of the cleaner (5).
摘要:
The housing 10 is formed such that when the tilting angle of a miniature card 70 is in a predetermined range of acute angle (e.g., 20 to 25 degrees), the lower end 70a of the miniature card 70 is insertable into the groove 14 of the housing 10. In addition, guide portions 27 and 28 are provided on the front surface of the rear wall 11 and on the upper end of the front wall 12, respectively, to lead the lower end 70a of the miniature card 70 which is tilted to an angle greater than the predetermined range. Thereby, the space required for the installation of the miniature card is made relatively small to produce a compact connector. The groove 14, into which the lower end 70a of the miniature card 70 is inserted for the installation of the miniature card, is formed or defined by the rear wall 11 and the front wall 12 of the housing 10, and lateral arms 13 are provided at the lateral ends of the rear and front walls 11 and 12 to connect these walls. Furthermore, a plurality of plate-like portions 19 are provided parallel with one another in a laterally extending row, each plate-like portion spanning in the front and rear direction and connecting the rear and front walls 11 and 12 at the lower end of the groove 14. As a result, the connector has a strength sufficient to withstand the pressure which is received from the lower end 70a of the miniature card 70 during the installation of the miniature card.
摘要:
A multi-level memory card connector has a plurality of memory card receiving compartments located in vertical alignment with each other at upper and lower levels and memory card ejection mechanisms at the sides of respective compartment also in vertical alignment. Ejection buttons for actuating respective ejection mechanisms are exposed to a memory card insertion face at upper and lower levels but are laterally offset to reduce the risk of the operators finger inadvertently pressing two adjacent buttons simultaneously.
摘要:
A surface-mounted electronic connector in which board connecting end portions of contacts of the connector extend in mutually parallel, closely spaced apart, coplanar relation and are maintained spaced apart above the board by feet of equal height which depend from tips of respective end portions. The height of each foot is not less than the sum the above-board height of a connection portion of a conductive layer of the board and the height of a reflow solder layer or pad thereon.
摘要:
An improved high-efficiency electrostatic air filter device which has a high efficiency of dust collection and a long service life. The device is composed of a charging section having a plurality pairs of electrodes to charge the dust particles in the gas to be treated; and a dust collecting section which is provided with a corrugated filter medium and spacer electrodes that are disposed in the troughs of the corrugations of the filter medium, and one of each pair of the electrodes in the charging section and the specer electrodes on one side of the filter medium in the dust collecting section are applied with high electric voltage.
摘要:
Nozzle openings 15a each including a straight duct portion 15s and a tapered portion 15t are situated at an upstream position of an air flow with respect to the straight duct portion. The nozzle openings are formed in a nozzle plate 15 such that the nozzle openings 15a are arranged in grid, and airborne microorganisms passing through the nozzle plate 15 can be effectively collected to form colonies. A degree of cleanness is measured by counting the colonies visually.
摘要:
After supporting a petri dish S having a culture medium K contained therein with a given thickness on a petri dish holder 17 of a housing 14, a nozzle holder 13 is clamped at a top of the housing 14. When a motor 19 is energized to rotate a high static pressure fan 18, air is introduced through nozzle openings 12a, and flows through a space between the nozzle 15 and the culture medium K. By setting a distance between the nozzle and the culture medium to 0.5-1.5 mm, a high collection efficiency can be attained.