摘要:
In a heat pipe container having a working fluid enclosed therein, the container includes a container body in the form of a horizontal straight tube and having an evaporator portion, a heat insulating portion and a condenser portion as arranged from one end of the body to the other end thereof, and an upward hollow projecting portion provided on the condenser portion of the container body.
摘要:
A plate-fin heat exchanger having two fluid channels. The first fluid channel is defined by two flat plates opposed to each other at a specified spacing, and a first channel forming member interposed between the flat plates. The channel forming member is in the form of an aluminum extrudate comprising a pair of right and left spacing side walls and a hollow connecting wall interconnecting the side walls and wavelike in the cross section of at least one of its upper and lower surfaces. The second fluid channel is defined by two flat plates opposed to each other at a specified spacing, a pair of spacing side wall portions provided therebetween and a fin member positioned between the side wall portions.
摘要:
Hydraulic pressure is controlled, which has such advantages that a generation of peak pressure (shoot pressure) can be lowered, mis-operation due to biting of particles can be reduced, or the cost thereof can be reduced. First, a large amount inflow command current is supplied to a proportional solenoid from a time point t1 to a time point t2. Consequentially, pilot pressure rises in a pilot pressure receiving chamber, so that a pressure control valve allows a large amount of hydraulic fluid to flow in a clutch or brake cylinder. At this time, potential detected by a pressure switch becomes zero level. Next, at the time point t2, a filling command small current is supplied to the proportional solenoid, thereby decreasing the amount of hydraulic fluid, which flows from an input port to an output port. This state is maintained from the time point t2 to a time point t3. At the termination of filling, peak pressure will not be generated, and a speed-changing shock in a clutch will not be generated, so that smooth switching can be accomplished.
摘要:
An oil cooler 11 comprises oil channel members 2A arranged one above another in parallel at a spacing and each composed of a pair of plates 20A, each of the plates 20A having a hole 21 at each of opposite ends thereof and a channel portion 22 between the end holes 21, the pair of plates 20A being joined with recessed surfaces of their channel portions 22 opposed to each other to form the oil channel member 2A; and annular header members 4A each interposed between each pair of adjacent oil channel members 2A at each of opposite lateral ends of the cooler. The header member 4A has upper and lower end faces each comprising a flat portion 41 to be fitted to a flat portion 24 of an edge of each plate 20A defining the end hole thereof and a recessed portion 42 to be fitted to a protuberant face of end 22a of the channel portion 22, each end face of the header member being joined to a peripheral edge portion of the plate 20A immediately adjacent thereto and defining an opening 20 formed by the end hole 21 of the plate and an open end of the channel portion 22 thereof for communication with the header member.
摘要:
In order to decrease the number of handling components of a parking brake unit without increasing a length of a wheel base, there is provided a forklift including a main input shaft which is rotationally driven by a hydraulic motor, a differential input shaft which rotates by the rotation of the main input shaft, and a differential mechanism which is provided between the differential input shaft and a front axle, the forklift being configured to run by transmitting power of the hydraulic motor to the front axle through the main input shaft, the differential input shaft, and the differential mechanism, wherein an idle shaft is disposed so as to be parallel to the differential input shaft, a power transmission mechanism obtained by meshing gears and is interposed between the differential input shaft and the idle shaft, and then a parking brake unit is provided in the idle shaft.
摘要:
A liquid crystal display device includes a liquid crystal display panel in which pixels are arranged in rows and columns. Each of the pixels includes a pixel electrode, and a thin-film transistor having a gate electrode and a drain electrode. Gate signal lines arranged in the rows are connected to the gate electrodes of the thin-film transistors. Drain signal lines arranged in the columns are connected to the drain electrodes of the thin-film transistors. The liquid crystal display device further includes a gate drive circuit for driving the gate signal lines, and a drain drive circuit for driving the drain signal lines. The drain drive circuit receives a plurality of grey-scale reference voltages from an external circuit, interpolates a plurality of intermediate voltages between each pair of adjacent ones of the grey-scale reference voltages, selects voltages from the grey-scale reference voltages and the intermediate voltages, and applies the selected voltages to the drain signal lines. V0 is a grey-scale reference voltage corresponding to a minimum grey-scale level, Vm is a grey-scale reference voltage corresponding to a maximum grey-scale level, and Vi is a grey-scale reference voltage that is nearest to a voltage level (Vm+V0)/2. A number of intermediate voltages interpolated between V(i−1) and Vi is different from both a number of intermediate voltages interpolated between V0 and V1, and a number of intermediate voltages interpolated between V(m−1) and Vm.
摘要:
An apparatus for driving a color display panel operating at a high frame frequency. The color display panel driving apparatus includes a line memory for storing data of 1/2 of a line at its odd-numbered addresses and then storing data of the remaining 1/2 of the line at its even-numbered addresses, a first column drive circuit including a shift register to which the data stored at the odd-numbered addresses of the line memory are supplied and which is connected at its bit outputs to column-direction signal wires associated with a left-hand half display area of the display panel, and a second column drive circuit including a shift register to which the data stored at the even-numbered addresses of the line memory are supplied and which is connected at its bit outputs to column-direction signal wires associated with a right-hand half display area of the display panel. After picture data of one line are completely stored in the line memory, the picture data are substantially simultaneously supplied from the odd-numbered and even-numbered addresses of the line memory to the first and second column drive circuits respectively.
摘要:
In order to decrease the number of handling components of a parking brake unit without increasing a length of a wheel base, there is provided a forklift including a main input shaft which is rotationally driven by a hydraulic motor, a differential input shaft which rotates by the rotation of the main input shaft, and a differential mechanism which is provided between the differential input shaft and a front axle, the forklift being configured to run by transmitting power of the hydraulic motor to the front axle through the main input shaft, the differential input shaft, and the differential mechanism, wherein an idle shaft is disposed so as to be parallel to the differential input shaft, a power transmission mechanism obtained by meshing gears and is interposed between the differential input shaft and the idle shaft, and then a parking brake unit is provided in the idle shaft.
摘要:
A cylindrical roller bearing or needle roller bearing for use with a rolling raceway surface is subjected to a carbonitriding treatment to produce a layer containing 30 to 80% retained austenite in the vicinity of its surface that contacts a carburized layer of a rolling raceway surface of a roller bearing. The amount of retained austenite of the surface layer of the roller bearing is increased by about 30%. The surface layer is then heat treated to apply a residual compression stress. The surface then receives surface finishing to produce micro concavo-convex portions in a random direction.
摘要:
A liquid crystal display unit in which external vibration or impact is prevented from being applied directly to a housing member through mounting screws for fixing the liquid crystal display unit to an outer casing, so that the display quality of the display image displayed on a liquid crystal display device is improved. In a liquid crystal display unit having a backlight unit, mounting members having threaded holes into which mounting screws for fixing the liquid crystal display unit to an outer casing are screwed are provided between a side wall of a housing member of the backlight unit and a side wall of a frame member. Each of the mounting members is constituted by a first side and a second side. The first side has threaded holes and extends along the side wall of the housing member. The second side is fixed to the housing member. In each area of the first side in which a threaded hole is provided, the first side has notches on opposite sides of the threaded hole in the extending direction of the housing member.