Patent application number | Description | Published |
20110268380 | RADIAL NEEDLE BEARING - In rollers used in a radial needle bearing, the circularity of crowning sections provided at opposite ends of each roller is 0.6 μm or smaller. This allows for reduction of sound (noise) produced when the radial needle bearing rotates by itself and can also allow for reduction of sound (noise) of a rotational machine when the radial needle bearing is installed and rotates therein. | 11-03-2011 |
20110291501 | INTEGRATED-INVERTER ELECTRIC COMPRESSOR - Provided is an integrated-inverter electric compressor with suppressed self-noise interference in an inverter unit, simplified electrical connections between an inverter circuit and a filter circuit, and fewer welded positions. A housing ( | 12-01-2011 |
20120045353 | INVERTER-INTEGRATED ELECTRIC COMPRESSOR - Provided is an inverter-integrated electric compressor in which the layout of a wiring path connected to an IPM is optimized, the wiring path is simplified, and the noise interference due to disturbance is suppressed, thereby improving the controllability. In an inverter-integrated electric compressor in which an inverter box is provided on the outer periphery of a housing accommodating a compressor and a motor, the inverter box integrally accommodating an inverter device, the inverter device includes an IPM constituting an inverter circuit, and UVW output terminals arranged on one side of the IPM are disposed, in the inverter box, so as to face a glass-sealed terminal that applies power from the inverter device to the motor. | 02-23-2012 |
20120234030 | AIR CONDITIONING APPARATUS - Provided is an air conditioning apparatus that is capable of suppressing increases in volume and cost of the apparatus and performing more suitable overheating protection. An electric compressor is an inverter-integrated electric compressor integrally including a compressor, an electric motor that drives the compressor, and an inverter including a temperature sensor that detects the temperature in the vicinity of a semiconductor switching device, wherein a controller estimates a discharge temperature of the compressor on the basis of a correlation of respective pressure loading characteristics for the detected temperature of the inverter, for the rotational speed of the compressor, and for the motive force of the compressor in a refrigerating cycle. | 09-20-2012 |
20120251369 | SCROLL COMPRESSOR AND METHOD FOR MACHINING DISCHARGE PORT OF THE SAME - A scroll compressor in which a paired fixed scroll and rotating scroll each having a spiral wrap provided upright on an end plate are engaged to form a compression chamber and in which a discharge port that discharges fluid compressed in the compression chamber is provided at the central portion of the fixed scroll, wherein the discharge port has a deformed elongated hole shape having circular holes at both ends, and the circular holes at both ends are connected by two surfaces the width between which is smaller than the hole diameters of the circular holes. | 10-04-2012 |
20120282123 | ELECTRIC COMPRESSOR AND ASSEMBLY METHOD THEREOF - A main-bearing outer diameter of an electric motor is made smaller than a rotor outer diameter without causing a drop in production efficiency, and the ease of performing a shrink-fitting step is also enhanced by making it possible to mount a rotor to a main shaft in an early stage. A bearing journal portion ( | 11-08-2012 |
20130048102 | GASKET AND MOTOR-DRIVEN COMPRESSOR - Provided is a gasket ( | 02-28-2013 |
20130294951 | ELECTRIC COMPRESSOR AND ASSEMBLY METHOD THEREFOR - An electric compressor includes a compression unit that compresses a refrigerant; an electric motor that is coupled with the compression unit via a main shaft; a housing that accommodates the compression unit and the electric motor; an end-side bearing holding part that is provided near an axial end of the housing closer to the electric motor; and a rolling bearing that has an outer ring press-fitted into the end-side bearing holding part and an inner ring into which an end of the rotating shaft is press-fitted, and that supports the main shaft, in which an opening into which an assembly jig for supporting the rolling bearing when the main shaft is press-fitted into the inner ring can be inserted and removed is provided in an end surface of the housing near the end-side bearing holding part. | 11-07-2013 |
20140270613 | RADIAL ROLLER BEARING, ROTARY MACHINE INCLUDING RADIAL ROLLER BEARING, AND METHOD FOR DESIGNING RADIAL ROLLER BEARING - The properties of a lubricating oil are utilized to avoid excessive quality in terms of the circularity of roller members while reducing the noise from a radial roller bearing alone during rotation and thereby reducing the noise from a rotary machine. A radial roller bearing includes an outer ring member ( | 09-18-2014 |