Patent application number | Description | Published |
20110300012 | SCROLL EXPANSION MACHINE - The rotating shaft is connected to the generator; the high-pressure steam s is introduced to the expansion chamber b through the guide passage; when the energy of the high-pressure steam s during expansion process revolves the revolving scroll, the generator regenerates electric power. The connecting housing is provided with the inlet opening and the outlet opening; the ventilation blades are fitted to the rotating shaft. When the ventilation blades rotate, the outside air is introduced (inside of the housing) from and through the inlet opening; the air passes by the air opening and the backside of the revolving scroll, and is discharged through the outlet opening. Thus, by the approach that the air passage is formed inside of the connecting housing and the scroll housing, the high-pressure steam s is prevented from being directed toward the backside of the revolving scroll. | 12-08-2011 |
20130067951 | WASTE HEAT UTILIZING DEVICE FOR AIR COMPRESSOR - A waste heat utilization device for an air compressor includes: a discharge path of an oil free air compressor; a circulation path along which a low boiling point medium circulates; an evaporator provided on the circulation path to heat and evaporate the low boiling point medium using the potential heat of the compressed air; and a preheater provided on an upstream side of the evaporator to preheat the low boiling point medium using the potential heat of the compressed air. A scroll type expansion machine is rotated by the low boiling point medium evaporated by the evaporator and increased in pressure, and power is generated by a power generator connected to a rotary shaft of the scroll type expansion machine. The low boiling point medium discharged from the scroll type expansion machine is then cooled and condensed by a condenser. | 03-21-2013 |
20130272840 | COMPRESSED GAS SUPPLY UNIT, COMPRESSED GAS SUPPLY APPARATUS AND CONTROL METHOD OF SAID UNIT AND SAID APPARATUS - A compressed gas supply unit includes compressors. Gas discharged from the compressors is stored in a storage tank and then supplied to a gas recipient. The pressure of the storage tank, the operation temperature and the power consumption of each compressor, and the temperature around the compressors are sent to a controller and a monitoring device. A determination unit of the controller determines the presence or absence of the abnormality of the compressor from a difference between the operation temperature of the compressor and the temperature around the compressors. An effective load calculation unit calculates the effective load of each compressor from the power consumption of the compressor and the pressure of the storage tank. The controller controls the compressors based on the calculated effective load such that the loads of the compressors are equalized. An estimation unit estimates maintenance timing from the effective load. | 10-17-2013 |
20130287592 | COMPRESSED GAS SUPPLY UNIT - A compressed gas supply unit has scroll compressors. Gas discharged from the scroll compressors travels through a main supply passage and is reserved in a reservoir tank, after which the gas is supplied to a gas recipient from a supply passage. The scroll compressors include inverter devices that allow for independent modulation of the speeds of respective drive motors. The controller includes a speed range setting unit that sets an upper speed limit and a lower speed limit of the scroll compressors, a speed sum calculating unit that calculates a sum of speeds of the scroll compressors based on a load of the compressed gas supply unit, and a speed setting unit that allocates the calculated sum of speeds among the scroll compressors to set speeds for scroll compressors respectively. | 10-31-2013 |
20130302199 | SCROLL EXPANDER - In a double rotation type scroll expander having double expansion chambers, a single integrated drive shaft is disposed to penetrate the interior of a housing, the double expansion chambers are formed by a drive scroll body and a driven scroll body, and a working medium introduction hole is provided in an axial direction of the drive shaft such that the working medium is supplied evenly to the double expansion chambers through the working medium introduction hole via a radial direction hole. The drive shaft and the drive scroll body formed integrally with the drive shaft rotate while the driven scroll body rotates synchronously with the drive scroll shaft via an interlocking mechanism. | 11-14-2013 |
20130309116 | DOUBLE ROTATION TYPE SCROLL EXPANDER AND POWER GENERATION APPARATUS INCLUDING SAME - A double rotation type scroll expander that expands steam includes a first drive scroll, a second drive scroll, a driven scroll, a rotation mechanism that supports the driven scroll rotatably, and a revolving mechanism that couples the driven scroll to the first drive scroll and the second drive scroll to be capable of revolving relative thereto. The revolving mechanism includes: a plurality of metal revolving pins provided respectively between a first drive end plate of the first drive scroll and a first driven arm of the rotation mechanism and between a second drive end plate of the second drive scroll and a second driven arm of the rotation mechanism; and a plurality of metal revolving discs provided in relation to the respective revolving pins and disposed such that respectively corresponding revolving pins are coupled thereto eccentrically. | 11-21-2013 |
20130315767 | SCROLL EXPANDER - Provided is a double rotation type scroll expander, aiming at protecting a bearing that supports drive shaft a drive shaft and the like from the heat of a working medium when a working medium introduction hole is provided in the drive shaft. The working medium introduction hole is drilled into the drive shaft such that the high-temperature, high-pressure working medium is supplied to expansion chambers through the working medium introduction hole. An adiabatic sleeve that forms a part of the working medium introduction hole is attached to the drive shaft in an internal region of roller bearings that support the drive shaft and a driven scroll body rotatably. Heat transfer from the working medium to the roller bearings is suppressed by the adiabatic sleeve, whereby the roller bearings are prevented from deteriorating. | 11-28-2013 |
20130315769 | SCROLL FLUID MACHINE - A seal groove is cut in the distal end face of a wrap of a fixed scroll, with a tip seal being fitted in the seal groove. Swelling members are interposed between both side faces of the tip seal and corresponding opposite side faces of the wrap. Condensed liquid of working medium w and water condensed from steam contained in the working medium w that are present between the tip seal and an end plate provide a sealing effect. When the swelling members swell upon absorbing the condensed liquids, they exert a strong pressing force on the tip seal and the wrap, thereby firmly retaining the tip seal in position. This prevents the tip seal from being pressed against the end plate, so that wear of the tip seal is reduced. | 11-28-2013 |