| TOSHIBA CARRIER CORPORATION Patent applications |
| Patent application number | Title | Published |
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| 20120125033 | HEAT SOURCE UNIT - According to one embodiment, a heat source unit apparatus includes air heat exchangers, each includes a plurality of fins arranged at prescribed intervals, heat exchanging pipes penetrating the fins, and bent strips extending at sides and bent in the same direction, and a heat exchange module includes two air heat exchangers, each having the bent strips opposed to those of the other air heat exchanger, the air heat exchangers being inclined such that lower edges are close to each other and upper edges are spaced apart, whereby the heat exchange module is shaped like a letter V as seen from side. | 05-24-2012 |
| 20120055665 | SECONDARY PUMP TYPE HEAT SOURCE AND SECONDARY PUMP TYPE HEAT SOURCE CONTROL METHOD - A secondary pump-type heat source system includes: heat sources connected in parallel; a load system in which the heat source water flows; a primary pump supplying the heat source water to the load system; a secondary pump provided for each heat source and supplies the heat source water subjected to heat exchange in the load system to the heat source; and a heat source controller calculating flow quantity of the heat source water flowing in the heat source side and flow quantity of the heat source water flowing in the load system side by assigning a result from measurement by a water temperature sensor detecting heat source temperature to an operating characteristic of each heat source and controlling operation of the secondary pumps based on the calculation result. | 03-08-2012 |
| 20110067434 | HERMETIC TYPE COMPRESSOR AND REFRIGERATION CYCLE APPARATUS - As a hermetic type compressor, a motor portion and a compression mechanism portion that are coupled to the motor portion with a rotating shaft interposed therebetween are accommodated in a closed vessel. The compression mechanism portion comprises a cylinder that comprises an internal diameter hole, and a main bearing and a sub-bearing in which a bearing hole that journals the rotating shaft is provided and the internal diameter hole of the cylinder is closed to form a compression chamber in the compression mechanism portion. The main bearing and the sub-bearing have a circular groove that is opened toward the compression chamber side, an inner circumferential surface of the circular groove is tapered such that a diameter increases gradually from the compression chamber side toward an opposite side of the compression chamber side, and a depth of the circular groove is set to 40% of a diameter of the bearing hole. | 03-24-2011 |
| 20110052439 | REFRIGERANT COMPRESSOR AND REFRIGERATING CYCLE DEVICE - A refrigerant compressor includes a first layer ( | 03-03-2011 |
| 20100201232 | CEILING-EMBEDDED AIR CONDITIONER - In a ceiling-embedded air conditioner, a panel fastening screw that fastens a decorative panel to an indoor unit body embedded in a ceiling is previously mounted to the indoor unit body and has an intermediate portion having a small diameter with no threaded portion. | 08-12-2010 |
| 20100193164 | OUTDOOR UNIT OF AIR CONDITIONER - The inside of an outdoor unit body is partitioned, by a partitioning wall, into a heat exchange chamber in which a heat exchanger and a blower are accommodated and a machine chamber in which a compressor and pipes are accommodated. An electronic component box is mounted between the outdoor unit body and the upper end of the partitioning wall. A control board is accommodated in the electronic component box in a horizontal posture so that a surface mounted with electronic components faces downward. An opening used for a lead wiring operation is opened in the bottom surface of the electronic component box. A wire cover is slidably attached to the bottom surface of the electronic component box to allow the opening for the lead wiring operation to freely open and close. According to this constitution, the electronic components can be prevented from falling to outside when electronic problems occur. | 08-05-2010 |
| 20100192611 | CEILING-EMBEDDED AIR CONDITIONER - An air passage has a blow-out side opening opposed to a position other than the longitudinal ends of a blow-out port of a decorative panel. The width of a louver, as determined in an air-blowing direction, decreases from a longitudinal center of the louver to the ends of the louver. | 08-05-2010 |
| 20100192610 | INDOOR UNIT OF AIR CONDITIONER - An indoor unit of an air conditioner includes a heat exchanger accommodated inside a indoor unit body which is a housing whose lower face is opened, a drain pan which is disposed below the heat exchanger and receives drain water generated at the heat exchanger, a drain pump which is detachably disposed within the indoor unit body, sucks drain water accumulated in the drain pan and discharges the drain water to the outside, a drain port which is disposed at a bottom face wall section of the drain pan, the port being an opening portion through which the drain pump is insertable, and a drain cap which openably closes the drain pump insertion port. | 08-05-2010 |
| 20100147020 | ROTARY COMPRESSOR AND REFRIGERATION CYCLE EQUIPMENT - A rotary compressor, which contains a motor unit and compression mechanism in a sealed case, transmits the rotational power of the motor to the compression mechanism through a rotary shaft and crankshafts eccentrically provided in the rotary shaft, and compresses a refrigerant in the compression mechanism, wherein the rotary compressor is configured to have H/(φa•E)=K, and K≦0.065, and the formula 0.35+0.07•K•H≦L/φDb≦0.45+0.07•K•H, assuming that the inside diameter of the cylinder forming the compression mechanism is φDa [mm], the cylinder height is H [mm], the crankshaft eccentricity is E [mm], the crankshaft diameter is φDb [mm], and the sliding lengths of the crankshaft and a roller fitted over the crank are set to L [mm]. | 06-17-2010 |
| 20100147013 | MULTI-CYLINDER ROTARY COMPRESSOR AND REFRIGERATION CYCLE EQUIPMENT - A rotary compressor, in which formulas RcL≧H−Cr−Cs is established, when the axial direction of the connecting part is L, the axial length of the first roller is H, the axial length of a bevel formed at the inside edge of the first roller is Cr, and the axial direction of a bevel of the second crankshaft is Cs. | 06-17-2010 |
| 20100107669 | THREE-WAY SOLENOID VALVE, ROTARY COMPRESSOR, AND REFRIGERATION CYCLE EQUIPMENT - A three-way solenoid valve includes a valve box in which a first valve seat and an outflow port are provided at one end and a second valve seat is provided at an apart position. A solenoid unit, provided with the valve body, is located at the other end of the valve box. A circular sealing projection divides the internal space of the valve box into a first chamber and a second chamber. A first inflow port is open in the first chamber, and a second inflow port is open in the second chamber. The first inflow port communicates with the outflow port when the valve body is in contact with the second valve seat. The second inflow port communicates with the outflow port through an internal flow path when the valve body is in contact with the first valve seat. | 05-06-2010 |
| 20100066197 | WINDING METHOD FOR STATOR AND PERMANENT MAGNET MOTOR - In a stator winding method for winding conductive wires | 03-18-2010 |
| 20090310394 | DIRECT-CURRENT POWER SUPPLY APPARATUS - First and second rectification circuits are connected to a commercial AC power supply by a reactor. A load is connected between the output terminal on the positive side of the first rectification circuit and the output terminal on the negative side of the second rectification circuit. While the voltage or the commercial AC power supply remains at the positive level, a current flows through a path constituted by one of the diodes of the first rectification circuit and one of the diodes of the second rectification circuit. While the voltage of the commercial AC power supply remains at the negative level, too, a current flows through the path constituted by one of the diodes of the first rectification circuit and one of the diodes of the second rectification circuit. | 12-17-2009 |
| 20080276635 | AIR CONDITIONING APPARATUS - A first motor-actuated expansion valve and a second motor-actuated expansion valve which are connected in parallel with each other in back-to-back connection are provided between an outdoor heat exchanger and an indoor heat exchanger. In the first motor-actuated expansion valve, at the time of non-operation and full closure, when the refrigerant pressure on the indoor heat exchanger side is higher than the refrigerant pressure on the outdoor heat exchanger side by a predetermined value or more, the full closure is released by receiving the refrigerant pressure on the indoor heat exchanger side. In the second motor-actuated expansion valve, at the time of non-operation and full closure, when the refrigerant pressure on the outdoor heat exchanger side is higher than the refrigerant pressure on the indoor heat exchanger side by a predetermined value or more, the full closure is released by receiving the refrigerant pressure on the outdoor heat exchanger side. | 11-13-2008 |
| 20080206082 | CLOSED COMPRESSOR AND REFRIGERATING CYCLE APPARATUS - A closed compressor includes a closed case in which a plurality of compression mechanism sections are accommodated, the compression mechanism section having a cylinder including a cylinder chamber eccentrically rotatably accommodating a roller, the compression mechanism section including a blade having a leading edge to divide the cylinder chamber into two parts along a direction in which the roller rotates, the compressor including a high-pressure refrigerant introducing mechanism guiding a high-pressure refrigerant into the cylinder chamber and separating the blade from the roller, the compressor being configured to switch between a high-capacity operation in which all the compression mechanism sections perform a compression operation and a low-capacity operation in which the blade in the compression mechanism section is separated from the roller and thus prevented from performing the compression operation, the high-pressure refrigerant introducing mechanism including a high-pressure refrigerant storage section storing the high-pressure refrigerant. | 08-28-2008 |
