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Higashimori, JP
Hirotaka Higashimori, Nagasaki-Ken JP
| Patent application number | Description | Published |
|---|---|---|
| 20090092486 | CENTRIFUGAL COMPRESSING APPARATUS - In a centrifugal compressing apparatus, a height of a blade of an impeller is made to decrease gradually from a front edge thereof to a rear edge thereof, and a rate of change of the height of the blade is relatively large near the rear edge. The height of the blade can be made large at the rear edge side under the design restriction that an exit width of the rear edge of the blade is set to a predetermined design value. The ratio of the width of the clearance and the height of the blade is thereby made relatively large. As a result, the ratio of a flow path area occupied by a clearance flow to a flow path area occupied by a main flow is reduced. Since the pressure loss is thus made small, a drop in the efficiency can be prevented. | 04-09-2009 |
| 20090290980 | MIXED FLOW TURBINE - To provide a mixed flow turbine in which supply of working fluid is designed to be supplied at a hub and a shroud, and the shape of the inlet-side edges of the blades is made to work effectively, thereby reducing incidence loss. A mixed flow turbine including blades whose leading edges are formed in a convex shape toward the upstream side; and a scroll that is a space formed upstream of the blades by a casing having a shroud that covers the radially external edges of the blades, the space being for supplying working fluid toward the leading edges of the blades, wherein the scroll is separated by a scroll partition wall into a shroud-side space and a hub-side space; and a shroud-side partition wall surface and a hub-side partition wall surface at the rear edge side of the scroll partition wall form a shroud-side inlet channel in which the working fluid flows substantially radially and a hub-side inlet channel in which the working fluid flows substantially in the same direction as the inclination direction of the hub side at the inlet of the blades between the partition wall surfaces and portions facing the partition wall surfaces, respectively. | 11-26-2009 |
| 20110002780 | CENTRIFUGAL COMPRESSOR - To provide a centrifugal compressor having a high pressure ratio, which can achieve a large flow rate while suppressing a decrease in efficiency, the centrifugal compressor being adapted to compress and discharge a gas, which has been sucked in by rotation of an impeller ( | 01-06-2011 |
Hirotaka Higashimori, Nagasaki-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100143095 | RADIAL COMPRESSOR - A radial compressor is capable of preventing the occurrence of separation caused by a flow which goes beyond the front end of a blade and turns onto a negative pressure plane from a pressure plane, thereby reducing a surging flow rate to a smaller flow rate. The radial compressor includes an impeller which is rotatively driven, axially introduces air taken in through an air inlet passage formed in a housing, pressurizes the introduced air, and discharges the pressurized air in a radial direction, wherein an annular concave groove is formed in a peripheral wall of the air inlet passage of the housing, a rear end portion of an opening of the annular concave groove, which rear end portion meets the housing peripheral wall, is provided in the vicinity of a blade front end surface of the impeller, and the rear end portion of the opening of the annular concave groove is formed such that an axial projecting amount X thereof relative to the blade front end surface of the impeller is set to −1T≦X≦1.5T (where T denotes the thickness of the distal portion of a blade). | 06-10-2010 |
Hirotaka Higashimori, Nagasaki JP
| Patent application number | Description | Published |
|---|---|---|
| 20100098548 | Mixed Flow Turbine or Radial Turbine - Intended is to provide a mixed flow turbine or a radial turbine, which can suppress an abrupt increase in a load to be applied to the front edge portion of a blade, thereby to reduce an incidence loss. The mixed flow turbine or the radial turbine comprises a hub ( | 04-22-2010 |
| 20100129204 | Variable diffuser and compressor - There is provided a variable diffuser for a compressor in which the efficiency can be further improved. In a variable diffuser | 05-27-2010 |
| 20100129209 | Centrifugal Compressor - There is provided a centrifugal compressor having a diffuser structure in which airflow is unlikely to separate from a hub side wall surface on a hub side wall surface downstream side within a diffuser passage. In a centrifugal compressor provided with a diffuser passage | 05-27-2010 |
Hirotaka Higashimori, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20120107108 | RADIAL GAS EXPANDER - Provided is a uni-axial multi-stage radial gas expander which has a high degree of reliability and which can sufficiently cope with the conditions of a high pressure and a high pressure ratio. Two or more radial gas expander sections ( | 05-03-2012 |
Toshihide Higashimori, Osaka JP
| Patent application number | Description | Published |
|---|---|---|
| 20080260442 | ORIGINAL DOCUMENT READING DEVICE - When an original document is placed on the lift tray, a timer is reset and starts counting a predetermined time (S | 10-23-2008 |
| 20100058123 | ELECTRONIC DEVICE AND ERROR MANAGEMENT SYSTEM - An electronic device including: a memory unit in which a plurality of error information is stored; and a control unit selecting from among the plurality of error information, an error information such that at least one of a type and a frequency of the error that occurred satisfies/satisfy a predetermined condition, the control unit also making the memory unit save the error information. | 03-04-2010 |
Yuki Higashimori, Toyota-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20120063188 | INVERTER DEVICE RELAY-CONNECTING MEMBER - A relay-connecting member ( | 03-15-2012 |