摘要:
A rotary fluid machine is provided that includes a rotor chamber (14), a rotor (41), vanes (48) guided by vane channels formed in the rotor (41), and pistons (47) slidably fitted in cylinders (44) provided in the rotor (41). Rollers (71) provided on support shafts (48d) of the vane (48) are rollably engaged with annular channels (74) of a casing (11) so as to interconvert reciprocation of the pistons (47) and rotational movement of the rotor (41). By capturing water of a hydrostatic bearing, which supports the vane (48) in the vane channel in a floating state, by a U-shaped lubricating water guide channel (43g) formed on the end face of a rotor segment (43) and discharging it into the annular channels (74), the water is prevented from flowing into the rotor chamber (14) and decreasing the temperature of steam, thereby preventing the output of the rotary fluid machine from being degraded.
摘要:
A Rankine cycle system is provided in which, with regard to a given relationship between the pressure (Pevp) and the temperature (Tevp) of a vapor that is taken into an expander (4) that includes a cylinder chamber in a first stage and a vane chamber in a second stage, the chambers being disposed in line, the expansion ratio of the vapor that the expander (4) takes in and discharges is set at a predetermined expansion ratio (ε) according to the given relationship so that the pressure (Pexp2) and the temperature (Texp2) of the vapor that is discharged from the expander (4) coincide with target values, thereby making the expander (4) and the condenser (5) exhibit maximum performance. Since the vapor within the cylinder chamber in the first stage is in a superheated vapor region and contains no water, the phenomenon of water hammer will not be caused in the cylinder chamber. Furthermore, since the vapor at the exit of the vane chamber is in a saturated vapor region and contains water, the vane chamber can be lubricated and sealed by means of the water.
摘要:
A movement vector generating apparatus generates a movement vector for a movement compensation by means of an inter-frame prediction, when encoding a preset image information including an image of a plurality of frames by using the movement compensation. The movement vector generating apparatus is provided with a plurality of generating devices each for generating the movement vector corresponding to a search range and a search accuracy between one frame and another frame, for each pixel block e.g., each macro block which is located within said one frame respectively in the image information and includes a plurality of pixels, the generating devices respectively using search ranges different from each other and search accuracies different from each other. The movement vector generating apparatus is also provided with a selecting device for selecting one of movement vectors generated by the generating devices, in accordance with characteristics of the image in said each pixel block, and then outputting the selected movement vector corresponding to said each pixel block.
摘要:
The disclosed herein is a novel and less expensive optical path switching apparatus for switching at least one input optical path selectively into at least one output optical path which comprises; switching means for switching the input optical path selectively into the output optical path which has at least one switching optical path to permit a light beam to pass thereon, inputting means for inputting at least one light beam to the switching means, and outputting means for outputting at least one light beam from the switching means, the switching means being essentially consisting of (i) a housing, (ii) at least one switching element having a first reflection surface to reflect the light beam inputted from each of input optical paths and a second reflection surface to reflect the light beam reflected from the first reflection surface toward the output optical path of the outputting means, and a reflection space formed between the first and second reflection surfaces of a switching element body, and (iii) at least one actuation element to actuate the optical path switching element for assuming two different positions including, a first position in which the input optical path of the inputting means is switched to the output optical path and a second position in which the input optical path is not switched to the output optical path of the outputting means.
摘要:
The abrasive particle layer of resin bonded abrasive tool is constructed by resin binder phase consisting of heat hardening resin, for example, phenol resin etc. and super abrasive particle of diamond (or CBN etc.) distributed in this resin binder phase. The wear resistant filler consisting of SiC, for example, as hard filler and hollow glass and metal coated amorphous carbon is distributed in resin binder phase. The amorphous carbon is made to spherical shape and metal coating layer consisting of Cu, for example, as the metal having high thermal conductivity, is set on a surface of this amorphous carbon.
摘要:
The objective is to realize a semiconductor memory capable of avoiding an increase in the load of the sense amplifiers, easily realizing a large capacity and high integration of the memory, reducing the current consumption by the bit lines, and improving the access speed. Because the levels of the selection signal lines SHUS1, SHUE1, SHDS1, and SHDE1 are set by the control circuit, only one of the aforementioned four selection signal lines is selected at the time of memory access, other selection signal lines are held in unselect status, and the sense amplifiers in the sense amplifier bank SB1a and prescribed bit line pairs or extended bit line pairs are connected to each other by response in order to carry out read or write; thus, the load of the sense amplifiers can be reduced, and high speed, large capacity, and high integration can be achieved.
摘要:
A resinous member with a character visually arranged therein, including a resinous body, a character formed by a laser beam machining on a surface of the body, and a light transmittable coating arranged on the surface of the body for covering at least the character. The light transmittable coating is provided with a generally uniform thickness to form a roughened outer surface substantially corresponding to a machined surface of the character. The light transmittable coating may be formed through a spray coating process. The resinous member may be used as a key top member of a key in a keyboard of an electronic machine. The key top member comprises a resinous body, a character arranged on a surface of the body, and optical means arranged in association with the character for highlighting the character in an optical manner using an external light. The optical means may comprise a phosphorescent or fluorescent member.
摘要:
A printing method is for printing per line by driving a printing head to travel in the main scanning direction. This printing head is provided with a plurality of printing elements arranged in the direction almost but not exactly perpendicular to the main scanning direction. In this method, when the printing head is driven to travel in a speed faster or slower than the standard speed for the usual printing operation, the number of printing elements of the printing head to be used for printing is reduced, hence making it possible to provide a printing apparatus and method capable of reducing the difference in printing quality to be caused by the application of plural printing speeds without changing the driving conditions of the printing head.
摘要:
A para-oriented polyamide porous film comprising a fibril having a diameter of not more than 1.mu., with fibrils planarly arranged as a network or nonwoven fabric and laminated in a layer, the thermal linear expansion coefficient at 200.degree.-300.degree. C. within .+-.50.times.10.sup.-6 /.degree.C. and 30-95% vacant spaces. Also, a battery separator using the porous film. Also, a production process of: (a) forming a film-like material from a solution containing 1-10% of a para-oriented aromatic polyamide having an inherent viscosity of 1.0-2.8 dl/g and 1-10% of a chloride of an alkali metal or an alkali earth metal in a polar amide or polar urea solvent; (b) maintaining the film-like material at not less than 20.degree. C. and not more than -5.degree. C. to deposit the para-oriented aromatic polyamide; and (c) immersing the film-like material in an aqueous or alcoholic solution to elute the sovlent and chloride of the alkali metal or alkali earth metal, then drying to obtain the para-oriented aromatic polyamide porous film. The film has uniformity and fine vacant spaces, which cannot be accomplished by a nonwoven fabric. Characteristics of a para-aramid (e.g., high heat resistance, high rigidity, high strength, etc.) are used.
摘要:
The present invention provides a lightweight prepreg having uniform formation, low linear thermal expansion coefficient and good mechanical strength, comprising a porous para-oriented aromatic polyamide film and a thermoplastic resin and/or a thermosetting resin, the porous para-oriented aromatic polyamide film being impregnated with the thermoplastic resin and/or the thermosetting resin, a process for producing the same, and a printed circuit substrate/board using the same.