摘要:
A channel layer (40) for forming a portion of a carrier path between a source electrode (100) and a drain electrode (110) is formed on a drift layer (30). The channel layer (40) includes Ge granular crystals formed on the drift layer (30), and a cap layer covering the Ge granular crystals.
摘要:
A mechanical supercharger includes a housing, first, second and third shafts rotatably supported on the housing, respectively, a first timing gear disposed on the first shaft, a second timing gear disposed on the second shaft and engaged with the first shaft timing gear, a first rotor disposed on the first shaft, a second rotor disposed on the second shaft and engaged with the first rotor, a first pulley disposed on one end of the first shaft, an electromagnetic clutch interposed between the first shaft and the first pulley and being selectively intermittent a transmission of driving force between the first shaft and the first pulley, a reduction gear disposed on one end of the third shaft through an one-way clutch and engaged with the second timing gear, a second pulley disposed on the other end of the third shaft and a driving force transmission means for transmitting driving force of engine to the first and second pulleies so that the first and second pulleies are simultaneously rotated in the same direction. Thereby, it is possible to reduce the number of the additional parts for changing the supercharging quantity in response to the condition of the engine and it is possible to prevent the unnecessary increasing of the rotating mass of the rotation groups which are rotated for supercharging.
摘要:
A motor-driven proportional fluid flow control valve has a linear motor including a slide valve body slidably mounted on a hollow iron core and an electromagnetic coil wound around the iron core. After a drive circuit has been energized, a constant current is passed through the electromagnetic coil to keep the slide valve body spaced from a stop surface while cutting off fluid communication between an inlet port and an outlet port. With the slide valve body out of contact with the stop surface, the slide valve does not produce noise which would otherwise be given off due to a fluctuating current flowing, through or vibrations of, the electromagnetic coil.
摘要:
A channel layer (40) for forming a portion of a carrier path between a source electrode (100) and a drain electrode (110) is formed on a drift layer (30). The channel layer (40) includes Ge granular crystals formed on the drift layer (30), and a cap layer covering the Ge granular crystals.
摘要:
A semiconductor material having a stepwise surface structure of (0001)-plane terraces and (11-2n)-plane steps [n≧0] on the SiC substrate, a semiconductor device using the same and a method of producing the semiconductor material in which a carbon-rich surface is formed on the SiC substrate prior to epitaxial growth of an SiC crystal, the carbon-rich surface satisfies the ratio R=(I284.5/I282.8)>0.2, wherein I282.8 (ISiC) is an integrated intensity of a C1s signal having a peak at the binding energy relating to stoichiometric SiC (in the region of 282.8 eV), and I284.5 (IC) is an integrated intensity of a C1s signal having a peak at the binding energy relating to graphite, SiCx (x>1), or SiyCH1-y (y
摘要:
A semiconductor material having a stepwise surface structure of (0001)-plane terraces and (11-2n)-plane steps [n≧0] on the SiC substrate, a semiconductor device using the same and a method of producing the semiconductor material in which a carbon-rich surface is formed on the SiC substrate prior to epitaxial growth of an SiC crystal, the carbon-rich surface satisfies the ratio R=(I284.5/I282.8)>0.2, wherein I282.8 (ISiC) is an integrated intensity of a C1s signal having a peak at the binding energy relating to stoichiometric SiC (in the region of 282.8 eV), and I284.5 (IC) is an integrated intensity of a C1s signal having a peak at the binding energy relating to graphite, SiCx (x>1), or SiyCH1-y (y
摘要翻译:在SiC衬底上具有(0001)面平台和(11-2n)平面台阶[n> = 0]的逐步表面结构的半导体材料,使用其的半导体器件和制造半导体材料的方法 在SiC晶体的外延生长之前,在SiC衬底上形成富碳表面,富碳表面满足比例R =(I> 284.5 / I> 282.8 SUB >)> 0.2,其中I 282.8(I 3 S)是具有与化学计量的SiC相关的结合能的峰的C1s信号的积分强度(在 282.8eV)和I 284.5(I C)是具有与石墨有关的结合能的峰的C1s信号的积分强度,SiC < (x> 1)或Si y y 1 y y(y 1)(在284.5eV的区域内),通过X-射线 ray光电子分光分析仪(XPS)。
摘要:
An air-fuel ratio control apparatus includes a specific integration means for integrating the rich or lean signal determined depending upon the detected concentration of the predetermined exhaust gas component, to produce an integration signal which is increased when the rich signal is applied and decreased only when the lean signal, having a duration longer than a predetermined period, is applied. If the short lean signal, having a duration shorter than or equal to the predetermined period, is produced, the above integration signal is utilized for adjusting the air-fuel ratio condition.
摘要:
An engine has an air supply passage and an exhaust gas passage. A supercharger and a turbocharger compressor are disposed in the air supply passage. The turbocharger compressor is disposed downstream of the supercharger and is driven by a turbocharger turbine disposed in the exhaust gas passage. A valved air by-pass is provided for conducting air around the supercharger between the supercharger outlet and inlet. A valved exhaust gas by-pass is provided for conducting exhaust gas around the turbine. During engine low speed operation the air by-pass and exhaust gas by-pass are closed and air is compressed by both the supercharger and compressor acting in series. During an intermediate speed range, the air by-pass is partially opened under the control of the air pressure at the compressor outlet to assure that such air pressure does not exceed a preset value. During a high speed range (i) the supercharger is shut down and the air by-pass is fully open so that only the turbocharger compresses air, and (ii) the exhaust gas by-pass is opened under the control of the pressure in the air inlet passage to reduce the operation of the turbine and thereby assure that the air pressure in the air supply passage does not exceed the preset value.
摘要:
An austenitic stainless steel having improved free cutting properties is disclosed, which consists essentially of, on a weight ratio, C.ltoreq.0.2%. Si.ltoreq.2.0%, Mn.ltoreq.2.0%, 7.5%.ltoreq.Cr.ltoreq.30.0%, Ni.ltoreq.40.0%, 0.005%.ltoreq.Bi.ltoreq.0.50%, 0.0003%.ltoreq.B.ltoreq.0.10%, 0.002%.ltoreq.S.ltoreq.0.40%, P.ltoreq.0.02%, N.ltoreq.0.05% and/or O.ltoreq.0.005% and the balance being Fe.
摘要翻译:公开了具有改善的自由切割性能的奥氏体不锈钢,其基本上由重量比C 0 = 0.2%组成。 Si <2.0%,Mn≤2.0%,7.5%Cr = 30.0%,Ni≤40.0%,0.005%Bi = 0.50%,0.0003% B = 0.10%,0.002% = S 0.40%,P <= 0.02%,N <= 0.05%和/或O <0.005%,余量为Fe。
摘要:
A supercharged pressure controller for internal combustion engines, which comprises a switch valve for switching negative pressure at a throttle valve to atmospheric pressure and a relief valve operated by the signal from the switch valve to release the supercharged pressure in a surge tank, thereby controlling the supercharged pressure accurately in accordance with various running conditions of vehicle, avoiding inconveniences such as rough idling or knocking of engine.