摘要:
A mercury-free high-pressure discharge lamp includes a light-transmissive airtight envelope enclosing therein a discharge space, and a pair of electrodes sealed inside the light-transmissive airtight envelope and facing the discharge space, and the primary halide includes at least thulium bromide having an innumerable emission spectrum primarily around the peak of a luminosity curve and alkali metal halide, and the accessory halide contains one or more metal halides mostly selected from a group of Magnesium (Mg), Iron (Fe), Cobalt (Co), Chromium (Cr), Zinc (Zn), Nickel (Ni), Manganese (Mn), Aluminum (Al), Antimony (Sb), Bismuth (Bi), Beryllium (Be), Rhenium (Re), Gallium (Ga), Titanium (Ti), Zirconium (Zr), and Hafnium (Hf) which primarily contribute to fix lamp voltage.
摘要:
Downsizing a piston stroke dimension in a compressor that reciprocates pistons is accomplished by changing a radial directional component of a shaft of a motion that is transferred to a link from a revolving member revolved by the shaft when transferred to the link attached to the pistons. Thereby, when the revolving member, driven by a shaft, revolves once, a center of a sliding pin appears to reciprocate once in a vertical direction as it goes back and forth on both sides interposing a piston axial line. Thus, when the revolving member revolves once, the piston reciprocates twice in a cylinder bore in a direction parallel to the longitudinal direction of the driving shaft.
摘要:
An inclined surface is formed in an upper inside wall of housing. The inclined surface inclines downwardly toward a lip seal. Lubricant oil supplied to the upper end of the inclined surface flows along the inclined surface without dropping downwardly due to surface tension, and flows to the lower end of the inclined surface then reaches the lip seal. Thus, the lubricant oil is supplied to the lip seal with certainty, thereby suppressing the wear of the lip seal and improving the durability of the compressor.
摘要:
A swash plate type compressor having pistons, each defining on opposite sides compression chambers 38 and 39. The cross sectional area of the operating chamber 39 located adjacent the driving source is larger than the cross sectional area of the operating chamber 38 located away from the driving source in such a manner that the axial force F0 generated in a rotating shaft 5 due to the difference between the pressure at the swash plate chamber and the atmospheric pressure is substantially canceled by the axial forces F1 and F2 generated in the rotating shaft due to the refrigerant pressure acting on the piston 8 in the operating chambers 38 and 39.
摘要:
A scroll-type refrigerant compressor having a movable scroll unit and a stationary scroll unit which has a fixed stationary end plate in which a plurality of bypass ports and a discharge port are formed through which the refrigerant compressed in the pockets formed between the movable and stationary scroll units is discharged via check valves covering the bypass ports and the discharge port and preventing a reverse flow of the discharged refrigerant into the pockets. The compressor further having a suction port fluidly connected to an evaporator of an air-conditioning system, a delivery port fluidly connected to a condenser of the air-conditioning system, and a fluid channel for providing a fluid communication between the suction and delivery ports via a solenoid-operated valve for blocking and unblocking the fluid channel. The compressor can be switched from the ordinary 100% capacity to 0% capacity and vice versa.
摘要:
A vane compressor capable of obtaining a two stage compression. The compressor has a front and rear rotor 6a and 6b for defining, together with a cylinder bores 43 and 44, first and second operating chambers 39 and 40, respectively. A refrigerant from a first inlet opening 28 is sucked into the first operating chamber 39 by a rotation of the front rotor 6a for obtaining a first stage compression at the first chamber 39. The refrigerant is then introduced, via an intermediate pressure chamber 36, to the second operating chamber 40 for obtaining a second stage compression at the second chamber 40, which is discharged outwardly.
摘要:
In a scroll compressor, the moving scroll member is engaged with the stationary scroll member while centrally offset from each other so that they define an actuation chamber between them. When driven by the crank of the compressor shaft and blocked against rotation by the rotation restricting plate, the moving scroll member revolves to compress the fluid in the actuation chamber, and because of the relationship between the compression reaction force and the driving force, a moment is produced to incline the moving scroll member, so that the moving scroll member rises at a portion of the thrust bearing plate, the contact pressure between the scroll members is increased, and a larger driving force is required. Accordingly, the attraction force of the magnet and magnetic body is utilized to press the moving scroll member against the thrust bearing plate. This force can be generated due to the attracting force or repulsing force between magnets, or by the force of a spring. Therefore, according to the present invention, the tooth width of both scroll members can be made larger.
摘要:
A switch valve structure of a fluid machine (10) having a pump mode to operate as a compressor and a motor mode to operate as an expander is disclosed. In pump mode, a communication path (106) between a working chamber (V) and a high-pressure chamber (104) is closed, while in motor mode, the communication path (106) is opened by a valve unit (107d). The valve unit (107d) is includes a spool portion (117) sliding in the direction substantially perpendicular to the surface to which the communication path (106) opens and a valve portion (127) arranged at the forward end of the spool portion (127) and sliding with the spool portion (117) thereby to open/close the communication path (106). A swivel mechanism (137) is interposed between the spool portion (117) and the valve portion (127) to tilt the sliding axis of the valve portion (127) at an arbitrary angle with respect to the sliding axis of the spool portion (117).
摘要:
A metal halide discharge lamp with which essentially permits disusing mercury is provided. The metal halide discharge lamp comprises a refractory and transparent hermetic vessel, a pair of electrodes fixed to the hermetic vessel, and a discharge medium sealed in the hermetic vessel and containing a first halide, a second halide, and a rare gas. The first halide is a halide of metal which achieves a desired light emission. The second halide has a relatively high vapor pressure, being at least one halide of metal which is unlikely to emit a visible light compared with the metal of the first halide and acts as a buffer gas.
摘要:
A metal halide discharge lamp which essentially permits disusing mercury is provided. The metal halide discharge lamp comprises a refractory and transparent hermetic vessel, a pair of electrodes fixed to the hermetic vessel, and a discharge medium sealed in the hermetic vessel and containing a first halide, a second halide, and a rare gas. The first halide is a halide of a metal which achieves a desired light emission. The second halide has a relatively high vapor pressure, being at least one halide of metal which is unlikely to emit a visible light compared with the metal of the first halide and acts as a buffer gas.