摘要:
A system for controlling ignition timing in an engine wherein a knocking signal is generated by a sensor in response to knocking. The operation of the sensor is monitored, and when a fault in its operation is detected, a dummy signal, instead of the knocking signal, is used to control engine timing. The dummy signal causes the engine timing to be retarded to a value at which knocking is unlikely to occur.
摘要:
A system for controlling ignition timing in an engine wherein a knocking signal is generated by a sensor in response to knocking. The operation of the sensor is monitored, and when a fault in its operation is detected, a dummy signal, instead of the knocking signal is used to control engine timing. The dummy signal causes the engine timing to be retarded to a value at which knocking is unlikely to occur.
摘要:
A belt type continuously valiable transmission (CVT) comprises a pair of input pulleys, a pair of output pulleys and a belt trained over input and output pulleys to transmit power. Each pair of the pulleys has a hydraulic cylinder for pressing the pulleys against the belt. A line pressure used in one cylinder is controlled by adjusting an electric pressure regulating valve. A correction value is calculated which corresponds to the square of the rotational speed of the hydraulic cylinder to which line pressure is supplied. The value of control signal of the pressure regulating valve is corrected in accordance with the correction value, so that the error of the line pressure due to a centrifugal force is compensated for.
摘要:
A system for controlling ignition timings in an engine wherein ignition signals in the specific cylinders are previously advanced by a predetermined value over ignition signals in other cylinders, the knockings in the specific cylinders are detected, and ignition timings in all the cylinders are delayed in accordance with said knockings, whereby strong knockings which would otherwise be caused to all the cylinders are prevented in advance, the ignition timing control of knockings in the engine can be effected irrespective of the accuracies of a knocking sensor.
摘要:
A device for controlling the vacuum advancing of ignition timing including a vacuum advancer, a diaphragm valve, a first vacuum port opened to an intake passage which is positioned so as to be immediately upstream of a throttle valve when it is fully closed and downstream of the throttle valve when it is slightly opened. A second vacuum port is located absolutely downstream of the throttle valve, wherein the diaphragm valve produces a fraction of the intake manifold vacuum when the throttle valve is fully closed while it communicates therethrough the intake manifold vacuum supplied from the second vacuum port when the throttle valve is opened so as to position the first vacuum port at the downstream thereof.
摘要:
Disclosed is a method of producing an insulated electric wire, in which a primary coating layer including at least an enamel-baking layer is formed on a metallic conductor to form a primary coated electric wire, and a secondary coating layer is extrusion-formed on the primary coating layer of the primary coated electric wire. The method includes an electric wire pre-heating process where a surface of the primary coating layer is pre-heated using an electric wire pre-heating unit, and a resin extrusion process where a secondary coating layer is extrusion-formed on the pre-heated primary coating layer using a resin extrusion unit. Further disclosed is an apparatus for producing an insulated electric wire.
摘要:
In a method of fabricating a semiconductor device having a MISFET of trench gate structure, a trench is formed from a major surface of a semiconductor layer of first conductivity type which serves as a drain region, in a depth direction of the semiconductor layer, a gate insulating film including a thermal oxide film and a deposited film is formed over the internal surface of the trench, and after a gate electrode has been formed in the trench, impurities are introduced into the semiconductor substrate of first conductivity type to form a semiconductor region of second conductivity type which serves as a channel forming region, and impurities are introduced into the semiconductor region of second conductivity type to form the semiconductor region of first conductivity type which serves as a source region.
摘要:
A manufacturing apparatus for multi-fiber optical ferrule includes a spacer whose hardness is equivalent to or higher than the hardness of pins for forming fiber holes. Further, corner portions with respect to the arrangement direction of the pins for forming fiber holes of the spacer are formed as inclined surfaces or rounded surfaces.
摘要:
An optical waveguide chip assembly in which a plurality of optical waveguide patterns and two positioning grooves are laterally arranged is prepared by forming a plurality of optical waveguide patterns and two positioning grooves on a wafer in parallel to each other and cutting the wafer. Separately from this, an optical fiber array assembly having a plurality of optical fiber array cables and two guide pin holes is prepared. The optical waveguide chip assembly and the optical fiber array assembly are joined while aligning by the guide pins and then divided into units of individual optical waveguide modules. A large number of optical waveguide modules can be made with a good efficiency, and the mass productivity is improved. Since a plurality of optical waveguide modules are made by the same positioning, variations among products can be reduced.
摘要:
An optical fiber end portion (10) which has a ferrule (11) which comprises a butting end face (11e) opposed to or butted against an optical device (20), and a single fiber hole or a plurality of fiber holes formed in parallel at predetermined intervals, into which one end of optical fiber (13a) is inserted, the optical fiber being optically connected to said optical device, a method for manufacturing the optical fiber end portion, and a construction for connecting the end portion to the optical device. The ferrule is formed of a molded product of synthetic resin, and is provided with at least one connecting member (12) on the side of butting end face connected to the optical device. The connecting member (12) has a linear expansion coefficient set at a value smaller than the linear expansion coefficient of a synthetic resin forming the ferrule.