摘要:
A ceramics composite member includes a structure in which a first ceramic member and a second ceramic member are integrated with a joint portion. The joint portion has a texture in which a silicon phase having an average diameter of 0.05 μm or more and 10 μm or less is continuously provided in a network form in interstices of silicon carbide particles having an average particle diameter of 0.1 μm or more and 0.1 mm or less.
摘要:
A ceramics composite member includes a structure in which a first ceramic member and a second ceramic member are integrated with a joint portion. The joint portion has a texture in which a silicon phase having an average diameter of 0.05 μm or more and 10 μm or less is continuously provided in a network form in interstices of silicon carbide particles having an average particle diameter of 0.1 μm or more and 0.1 mm or less.
摘要:
An optical device has a reflecting mirror using a particle-dispersed silicon material including silicon carbide and silicon. The reflecting mirror includes a plurality of segments joined to each other by reaction sintering. Producing the segments is easy in comparison with that of a reflecting mirror of one piece. Accordingly, it is possible to reduce probability of breakage of the segments and to shorten process time of production of a reflecting mirror.
摘要:
A sputtering target contains Si and C as its major components and includes a texture in which a Si phase continuously exists in a net shape in gaps among SiC crystal grains. An average diameter of the Si phase is controlled to 1000 nm or less. The sputtering target is sputtered in an oxygen-containing gas, thereby depositing an optical thin film containing Si and O as its major components, and a third element other than the major components, a total amount of the third element being within a range from 10 to 2000 ppm.
摘要:
An electronic control unit detects a manner of fluctuation of a fuel pressure with injection of fuel by a fuel injection valve with the use of a fuel pressure sensor, and calculates a tendency of deviation of an actual fuel injection characteristic of the fuel injection valve with respect to a basic fuel injection characteristic on the basis of a result of comparison between a detected temporal waveform and a basic temporal waveform. The tendency of deviation is reflected at a predetermined reflection rate (R) at the time of updating a learned value (Gij) for compensating for an individual difference of the fuel injection valve. The predetermined reflection rate (R) is increased when an accumulated value (D) of a vehicle travel distance is shorter than a predetermined value (Dth) as compared with when the accumulated value (D) is longer than or equal to the predetermined value (Dth).
摘要:
A cetane number estimation apparatus injects fuel from a fuel injection valve in a diesel engine based on a target fuel injection amount, calculates an indicator of output torque of the diesel engine produced through fuel injection, and estimates the cetane number of the fuel using the calculated indicator. The cetane number estimation apparatus includes a pressure sensor for detecting fuel pressure varied by variation in actual fuel pressure in the fuel injection valve at the time of the fuel injection. The cetane number estimation apparatus also has a pressure correcting section that is adapted to calculate actual operating characteristics of the fuel injection valve based on a variation waveform of the detected fuel pressure and corrects the target fuel injection amount based on the difference between the calculated actual operating characteristics and prescribed reference operating characteristics.
摘要:
An intake passage of a V diesel engine 10 has a pair of distributing lines 19L, 19R connected to corresponding banks 11L, 11R, a converging line 16 that connects the distributing lines 19L, 19R to each other, and a pair of branch lines 15L, 15R branched from the converging line 16 and extending upstream. Boost pressure changing mechanisms 50L, 50R, air intake throttle valves 51L, 51R, and exhaust flow rate adjusting valves 52L, 52R are provided in correspondence with the branch lines 15L, 15R and inlet lines 13L, 13R. A control section 41 controls operation of each of these actuators in accordance with a common target control value.
摘要:
A fuel injection control apparatus of an internal combustion engine is disclosed. This apparatus is provided with a crank angle detector that includes a signal rotor having a number of tooth portions and a toothless portion. The crank angle detector outputs a first signal corresponding to each tooth portion and a second signal corresponding to the toothless portion. A control computer selectively carries out a first calculation process for calculating the timing of fuel injection using the first signal and a second calculation process for calculating the timing of fuel injection using the second signal. When carrying out the second calculation process, the control computer calculates the timing of fuel injection using the length of time gained by dividing the length of time gained through detection of the toothless portion by the number of tooth portions which can be aligned in the toothless portion.
摘要:
A heat resistant member includes a metal or ceramic substrate and a thermal-barrier coating layer disposed on the substrate. The thermal-barrier coating layer includes a metal layer functioning as a bonding layer and one or more ceramic layers disposed on the metal layer. At least one of the ceramic layers is mainly composed of a hafnium oxide-based ceramic layer containing 85% or more of hafnium oxide. Due to the above structure, there can be provided a heat resistant member with high heat resistance and durability which has a thermal-barrier coating layer with stable thermal conductivity at elevated temperatures, namely, not less than 1,200° C., and resistance to cracking and delamination due to sintering.
摘要:
A movable roof opening-closing structure rotatively opening and closing a movable roof toward backward at an outside of a vehicle body through a linkage equipped with a first link bar and a second link bar, wherein the linkage is configured with an inequilateral four-bar linkage having a fixed bar at a vehicle body side, and wherein an instant center of the movable roof against the vehicle body when the movable roof is at an entirely closing position is located at one of positions where is ahead of a front end of the movable roof and behind of a rear end of the movable roof.