摘要:
An automatic transmission that includes oil passages with a simple structure provided for twin clutches can allow the number of production steps to be reduced. The automatic transmission includes a number of gear trains equal to the number of speeds between a primary shaft and a countershaft. The automatic transmission performs connection and disconnection of a rotational driving force between a crankshaft and a gearbox by means of twin hydraulic clutches including first and second clutches, which are made of the same components and disposed on the axis of the primary shaft back to back. Oil passages can be formed into a more simple shape and can be configured to have the same total length. The first clutch performs connection and disconnection for first and third speeds, and the second clutch performs connection and disconnection for second and fourth speeds.
摘要:
An automatic transmission that includes oil passages with a simple structure provided for twin clutches can allow the number of production steps to be reduced. In an automatic transmission includes a number of gear trains equal to the number of speeds between a primary shaft and a countershaft. The automatic transmission performs connection and disconnection of a rotational driving force between a crankshaft and a gearbox by means of twin hydraulic clutches including first and second clutches. The first and second clutches are disposed on the axis of the primary shaft back to back with a primary gear interposed therebetween. Oil passages can be formed into a more simple shape than those formed by a method in which twin clutches are accommodated in a single case and can be configured to have the same total length. The first and second clutches are made of the same components. The first clutch performs connection and disconnection for first and third speeds, and the second clutch performs connection and disconnection for second and fourth speeds.
摘要:
A ferritic stainless steel material for brazing without grain coarsening has a partially recrystallized structure and composition comprising, in % by mass, C:0.03% or less, Si: more than 0.1 to 3%, Mn: 0.1 to 2%, Cr: 10 to 35%, Nb: 0.2 to 0.8%, N: 0.03% or less, if necessary, at least one of Mo, Cu, V and W: 4% or less in total, at least one of Ti and Zr: 0.5% or less in total, at least one of Ni and Co: 5% or less in total, or at least one of Al: 6% or less, REM (rare earth metal): 0.2% or less and Ca: 0.1% or less, the remainder being Fe and unavoidable impurities, wherein area ratio in percentage of recrystallized grains formed by heating after cold working is from 10 to 80%.
摘要:
A vehicular transmission has a structure which enables a reverse idle gear to absorb and reduce excessive back torque inputted from drive wheels. At the time of reverse traveling motion, a counter shaft and a reverse gear are connected to each other through the intermediation of a clutch mechanism, whereby the power of the counter shaft is transmitted from the reverse gear, a driven gear, a hollow shaft, and a drive gear to the drive shaft by way of a final gear. When a large back torque is inputted to the final gear from the drive shaft, the inputted back torque is transmitted to the drive gear, and is then further transmitted to the driven gear by way of the hollow shaft. Since the hollow shaft is thin-walled and has reduced rigidity, it undergoes circumferential twisting due to the back torque inputted, whereby the back torque is reduced.
摘要:
To alleviate shift shock of an automatic transmission provided with a twin clutch. An automatic transmission is provided with gear trains equal in number to the number of speed ratios between a primary shaft and a counter shaft. A first hydraulic clutch and second hydraulic clutch interrupt and connect the transmission of rotation between a crankshaft and the transmission. A changeover valve is provided to connect the pressure of a working fluid to any one of the first and second clutches. A pair of orifice control valves are disposed between the changeover valve and the first clutch and between the changeover valve and the second clutch, respectively. A pair of accumulators are disposed between the changeover valve and the first clutch and between the changeover valve and the second clutch, respectively.
摘要:
A low-cost ferritic steel sheet possessing not only formability enabling application to complexly configured automobile exhaust gas passage components but also high-temperature strength, high-temperature oxidation resistance and low-temperature toughness as good as or superior to existing ferritic steels, which ferritic steel sheet comprises, in mass percent, C: not more than 0.02%, Si: 0.7-1.1%, Mn: not more than 0.8%, Ni: not more than 0.5%, Cr: 8.0 to less than 11.0%, N: not more than 0.02%, Nb: 0.10-0.50%, Ti: 0.07-0.25%, Cu: 0.02-0.5%, B: 0.0005-0.02%, V: 0 (no addition)-0.20%, one or both of Ca and Mg: 0 (no addition)−0.01% in total, one or more elements among Y and rare earth elements: 0 (no addition)−0.20% in total, and the balance of Fe and unavoidable impurities, and satisfies 3 Cr+40 Si≧61, Cr+10 Si≦21, and 420 C−11.5 Si+7 Mn+23 Ni−11.5 Cr−12 Mo+9 Cu−49 Ti−25 (Nb+V)−52 A+470 N+189≦70.
摘要翻译:一种低成本的铁素体钢板,不仅具有能够应用于配置复杂的汽车废气通道部件的成形性,而且具有与现有的铁素体钢一样好或优于现有的铁素体钢的高温强度,高温抗氧化性和低温韧性, 钢板以质量%计含有:不大于0.02%,Si:0.7-1.1%,Mn:不大于0.8%,Ni:不大于0.5%,Cr:8.0至小于11.0%,N: 不大于0.02%,Nb:0.10-0.50%,Ti:0.07-0.25%,Cu:0.02-0.5%,B:0.0005-0.02%,V:0(无添加)-0.20% 和Mg:0(无添加)-0.01%,Y和稀土元素中的一种或多种元素:0(无添加)-0.20%,余量为Fe和不可避免的杂质,满足3 Cr + 40 Si> = 61,Cr + 10Si <= 21,420 C-11.5 Si + 7 Mn + 23 Ni-11.5 Cr-12 Mo + 9 Cu-49 Ti-25(Nb + V)-52 A + 470 N + 189 <= 70。
摘要:
In the transmissions of the background art, two larger-diameter gears are mounted on a final shaft thereby causing an increase in weight of the transmission. The present invention reduces the weight of a transmission by mounting only one larger-diameter gear on a final shaft. The transmission of the present invention includes an output shaft; a countershaft extending parallel to the output shaft; an intermediate shaft extending parallel to the output shaft; a forward drive gear rotatably supported relative to the countershaft; a reverse drive gear rotatably supported relative to the countershaft; a first intermediate gear rotatably supported relative to the intermediate shaft, the first intermediate gear normally meshing with the reverse drive gear; a second intermediate gear rotatably supported relative to the intermediate shaft, the second intermediate gear being interlocked with the first intermediate gear to rotate therewith; an output shaft driven gear fixed to the output shaft, the output shaft driven gear being normally meshing with the forward drive gear and the second intermediate gear; and a gear selecting and fixing device axially movably mounted on the countershaft for selectively fixing the forward drive gear and the reverse drive gear to the countershaft.
摘要:
An internal combustion engine with a hydraulically operated automatic transmission includes a crankcase that is divided on a plane perpendicular to a crankshaft and an outer face of the crankcase in a direction of the crankshaft is covered with a crankcase cover. A transmission gear ratio of the transmission is automatically changed over by control of oil pressures to remove a valve body for readily controlling oil pressures and for raising the accessibility of maintenance. The valve body for controlling the oil pressures is mounted on an outer wall face of the crankcase cover
摘要:
To enhance productivity and maintainability of an internal combustion engine for a vehicle with a torque converter. An internal combustion engine with a torque converter includes a single feed pump for supplying both a working oil for a torque converter and a lubricating oil for the engine with an oil filter in communication with a discharge port of the feed pump being fitted to a crankcase cover. An outlet oil passage of the oil filter is branched into a low-pressure oil passage provided with an orifice and an oil passage for supplying a high-pressure control oil to changeover valves of a transmission. The high-pressure oil passage is provided concentratedly in the crankcase cover.
摘要:
To provide a lubricating oil supply structure for an internal combustion engine, which requires no lubricating oil passage to be defined in a crankshaft, is capable of ejecting lubricating oil to a lubrication object, is free of limitations on the layout of the generator and peripheral devices, is capable of cooling generating coils of the generator, and allows the area of the lubrication object to which the lubricating oil is applied to be set with large freedom. A lubricating oil supply structure for an internal combustion engine has a generator having a stator with generating coils and a rotor. A one-way clutch is disposed opposite to the stator across the rotor. The lubricating oil supply structure includes a first nozzle disposed on a stator support of a generator cover for continuously ejecting lubricating oil. The lubricating oil is ejected from the first nozzle to the one-way clutch through holes which are disposed in a position confronting the one-way clutch in an ejected direction. The lubricating oil supply structure also has a second nozzle for continuously ejecting the lubricating oil to a side of the generating coil.