摘要:
A variable displacement vane compressor for an air conditioning system used in an automobile has a cylinder assembly having a bore in which a rotor (7) is received to form at least one crescent chamber (R1, R2) between the rotor (7) and the bore. The cooling capacity is adjusted in accordance with a cooling load of the air conditioning system by displacement of an annular plate member (21) for controlling the amount of refrigerant introduced into a crescent chamber (R1, R2). The annular plate member (7) is driven by a driving units (25, 25a, 26, 27, 28, S1, S2) in which a dynamic pressure balance between a first compartment (S1) to which a refrigerant gas under a discharging pressure is introduced, and of a second compartment (S2) to which an oil under a discharging pressure is introduced. A sealing means (35a, 36) for preventing the leakage of the refrigerant gas from the high pressure region including the first compartment (S1) to the low pressure region is provided between the annular plate member (21) and a front end wall member (4) and an pressurized oil is supplied to the sealing means (35a, 36) to enhance the sealing effect of the sealing means (35a, 36).
摘要:
A variable displacement vane compressor including a rotor rotatably supported between a pair of side plates secured to a cylinder, vanes movably supported in the rotor to define variable compression chambers in the cylinder, a reciprocally rotatable displacement control plate located between the rotor and one of the side plates for controlling the largest displacement of the compression chambers when closed, a spool chamber provided in one side plate and opposed to the displacement control plate, a spool which reciprocates in the spool chamber to define a first pressure chamber in which a refrigerant having a discharge pressure is introduced and a second pressure chamber in which an oil having the discharge pressure is introduced through a control valve unit in response to the suction pressure, the spool and the displacement control plate being interconnected by a connecting member and moving together, a seal ring between the displacement control plate and the one side plate, for isolating a high pressure area from a low pressure area, and feed passages for introducing the oil having the discharge pressure to the sealing ring. The one side plate has an elongated hole which permits movement of the connecting member extending therethrough, and the seal ring has a diameter smaller than that of an imaginary circle centered on the rotation axis of the rotor and circumscribing the elongated hole. The seal ring is eccentric to the rotation axis and includes the elongated hole in the seal ring.
摘要:
A variable displacement vane compressor for an air conditioning system having at least one crescent chamber (R1, R2) defined by vanes (8), a rotor (6), and a bore of a cylindrical body (3). The cooling capacity is adjusted by rotational displacement of an annular plate member (21) for controlling the amount of refrigerant introduced into the crescent chamber (R1, R2). The annular plate member (21) is rotated by a spool (25) driven by a dynamic pressure balance between a first compartment (S1) to which a refrigerant gas under a discharging pressure is introduced, and of a second compartment (S2) to which an oil under a discharging pressure is introduced. The spool (25) is connected to the annular plate member (21) through a pin (26) penetrating an arcuate slot 27 formed in a front end wall plate member (4). A sealing means (35a, 36) for preventing the leakage of the refrigerant gas from the high pressure region including the first compartment (S 1) to the low pressure region is provided between the annular plate member (21) and the front end wall member (4). A pressurized oil is supplied to the sealing means (35a, 36) through an intermediate passage (37) to enhance the sealing effect of the sealing means (35a, 36). The intermediate passage (37) is separated from the arcuate slot (27) to prevent the high pressure oil from leaking into the first compartment (S1).
摘要:
A variable capacity type vane compressor comprising a cylinder having an oblong cylinder bore and a rotor with radial vanes rotatably inserted in the cylinder so that the radially outer ends of the vanes are in slidable contact with the cylinder bore surface to form compression chambers therebetween. A movable capacity control disk is arranged at an interface between one side plate and the rotor to control the quantity of introduced gas and/or returned compressed gas to vary a capacity of the compressor. The capacity control disk is moved by a spool actuator inserted in a spool cylinder having opposed working chambers. Gas under output pressure is introduced into the first working chamber, and oil under output pressure is introduced into the second working chamber, while a leak passage relieves the oil pressure to an intermediate pressure. A spring is also arranged in the second working chamber to urge the spool, and a valve is arranged in the oil passage close to the second working chamber to regulate the movement of the spool in response to a predetermined requirement.
摘要:
A variable-delivery compressor having plural compression chambers whose volume is changed as a rotor is rotated in a housing to compress a gas sucked through a suction port and deliver the compressed gas through a discharge port, comprising: a by-pass passage for communication between a compressing and a sucking compression chamber of the plural compression chambers; a device for changing the position of the discharge-side extremity of an opening of the by-pass passage on the side of the compressing compression chamber, in the circumferential direction of the rotor, to retard the compression start timing of the compressing compression chamber; and at least one of a variable flow restrictor device associated with a suction passage communicating with the suction port to adjust a flow of the gas which is sucked through the suction passage, and a pressure relief device including a pressure relief passage and a switching device for closing and opening the pressure relief device. The pressure relief passage is normally closed by the switching device, but opened by the switching device to permit the compressing compression chamber to communicate with the suction chamber when the discharge-side extremity of the opening of the by-pass passage is shifted in the rotating direction of the rotor to a position nearest to the discharge port.
摘要:
A solar cell element is disclosed. The solar cell element comprises a semiconductor substrate and electrodes. The semiconductor substrate with a first and second main surface comprises a body and a first layer. The electrodes comprise first electrodes on the first layer and second electrodes on the second main surface. At least one of the first electrodes and the second electrodes comprises silver, copper and nickel as a main component. A method for manufacturing a solar cell element is disclosed. An electrically conductive paste containing silver, copper and nickel is prepared. The electrically conductive paste is applied on the semiconductor substrate. The electrically conductive paste is fired to form the solar cell element.
摘要:
A main control section of a mobile information terminal determines a traveling state of a vehicle between a stopped state and a traveling state. When the vehicle is stopped, an acquisition purpose of various types of information by a user is to acquire detailed information, and the main control section displays, on a display on the vehicle side, information acquired from an information providing center in a display mode permitting a touch operation equivalent to that of the mobile information terminal. On the other hand, when the vehicle is traveling, an acquisition purpose of various types of information by a driver is to acquire information necessary for traveling, and the main control section displays, on the display on the vehicle side, information acquired from the information providing center in a display mode permitting a touch operation limited to be simplified compared with the touch operation of the mobile information terminal.
摘要:
Agglomerated fine solids, e.g., agglomerated pellets (2B), that are located within a restricted space or pinch point of a conveyance system (1), and that impede the free-flow of fine solids from one vessel (4) to another vessel (10), are detected and fragmented through the coordinated use of a flow detector (12), breaker plate (8) and press (6). The flow detector (12) senses an interruption or diminishment in the flow of the fine solids and signals and actuates the press (6) which in turn engages and fragments the agglomeration. The breaker plate (8) is sized and configured to trap major agglomerates.
摘要:
Provided is an abrasion-resistant steel plate or sheet which exhibits excellent weld toughness and excellent delayed fracture resistance and is thus suitable for construction machines, industrial machines, and so on. Specifically provided is a steel plate or sheet which contains, in mass %, 0.20 to 0.30% of C, 0.05 to 1.0% of Si, 0.40 to 1.2% of Mn, 0.010% or less of P, 0.005% or less of S, 0.40 to 1.5% of Cr, 0.005 to 0.025% of Nb, 0.005 to 0.03% of Ti, 0.1% or less of Al, 0.01% or less of N, and, as necessary, one or more of Mo, W, B, Cu, Ni, V, REM, Ca and Mg, and has a DI* of 45 to 180 while satisfying the relationship: C+Mn/4−Cr/3+10P≦0.47, and which has a microstructure that comprises martensite as the matrix phase. DI*=33.85×(0.1×C)0.5×(0.7×Si+1)×(3.33×Mn+1)×(0.35×Cu+1)×(0.36×Ni+1)×(2.16×Cr+1)×(3×Mo+1)×(1.75×V+1)×(1.5×W+1)
摘要:
A high pressure discharge lamp ballast performs driving with a synthesized current waveform comprising a combination of first and second sets of current waveforms. The ballast controls content rates of each of the sets per unit time; detects a rotation synchronization signal for a color wheel; applies a synthesized current waveform in accordance with the synchronization signal and the content rates to a high pressure discharge lamp; and detects a lamp voltage. A period of each of the first and second sets equals to one rotation of the color wheel. The number of inversions of the second set is larger than that of the first set. The content rate of the second set is set to RL% when the lamp voltage exceeds a value V, and the content rate of the second set is set to RH% when lamp voltage falls below a value V′.