| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 415112000 | With inlet and outlet connections | 14 |
| 20080317584 | Compressor - A compressor includes a housing, a rotary shaft, a bearing, a seal, a shaft seal chamber, a lug plate, a thrust bearing, a first passage for connecting the crank chamber to the shaft seal chamber, a second passage provided in the housing for connecting the crank chamber to the shaft seal chamber, a third passage provided in the rotary shaft for connecting the shaft seal chamber to a discharge pressure region of the compressor, a partition provided in the shaft seal chamber for dividing the shaft seal chamber into a seal-side chamber and a bearing-side chamber and a clearance formed through the partition for drawing the refrigerant gas from the seal-side chamber of the shaft seal chamber to the bearing-side chamber of the shaft seal chamber, the clearance being formed radially inward of the inner circumferential surface of the shaft seal chamber. | 12-25-2008 |
| 20090274548 | CONTAMINANT-DEFLECTOR LABYRINTH SEAL AND METHOD OF OPERATION - A seal assembly for deflecting contaminated fluid flowing through the seal assembly from an upstream space to a downstream space includes an annular housing, at least one vent hole peripherally disposed on the annular housing, a first set of seals disposed within the annular housing adjacent to the downstream space, the first set of seals having an inclined surface to deflect the flow of contaminated fluid through the at least one vent hole, and a second set of seals mounted on the shaft, disposed within the annular housing, adjacent to the first set of seals and adjacent to the upstream space. The second set of seals may have larger inside diameter than the first set of seals. The seal assembly may prevent contaminated fluid from entering an air bearing cooling circuit, thereby preventing bearing wear, erosion and failure. | 11-05-2009 |
| 20100080686 | MULTISTAGE HIGH-PRESSURE PUMP - A multistage high-pressure pump according to the present invention includes a rotational shaft ( | 04-01-2010 |
| 20130323018 | EXPANSION TURBINE - An expansion turbine, comprising: a case having an inlet and an outlet for a working fluid; at least one stator ( | 12-05-2013 |
| 20140099188 | WIDE DISCOURAGER TOOTH - Oil sump seal pressurization apparatus for turbine engines are disclosed. An example oil sump seal pressurization apparatus may include a non-rotating oil sump housing a bearing; an oil seal isolating an interior of the oil sump; a passage arranged to supply pressurization air to an outward side of the oil seal; a drain arranged to allow draining of oil and venting of at least some of the pressurization air, the drain being positioned axially between the passage and the oil seal; a wide discourager tooth disposed on the shaft and extending radially outward towards a non-rotating land, which may be disposed axially between the passage and the drain, the wide discourager tooth being spaced apart from the land in a radial direction by a gap, the wide discourager tooth including an upper surface; and/or an adjacent tooth disposed on the shaft and extending radially outward from the shaft. | 04-10-2014 |
| 20140169942 | WATER PUMP - A water pump that minimizes defects in which cooling water flows externally is provided. The water pump is provided with a rotating shaft supported by a body via a bearing, an impeller that is disposed at one end of the rotating shaft, and a seal member that is disposed between the impeller and the bearing. A drain passage that sandwiches the seal member and communicates with a space formed on the opposite side of the impeller is formed in the body, and a reservoir is formed downstream from the drain passage. At an upper position of a wall portion that forms the reservoir, a drain hole is formed, and a water-absorbing planar member is positioned in the reservoir. | 06-19-2014 |
| 20140186159 | BEARING UNIT OF TURBO-CHARGER - A bearing unit of a turbocharger may be disposed on an inner side of a space in a center housing and carry axial load of a rotary shaft connecting a turbine wheel, a compressor wheel, and an electric motor. The bearing unit may include a bearing body fastened to a side of the center housing and has a through-hole substantially at a center of the bearing body for fitting the rotary shaft fitted, and a coupling disposed on the through-hole and the rotary shaft, having a stepped portion in which the bearing body is inserted, and forming an oil chamber with the bearing body. | 07-03-2014 |
| 20140219777 | TURBOCHARGER - A turbocharger includes: a turbocharger main body; a bearing hole formed in the turbocharger main body; a turbine shaft rotatably inserted into the bearing hole and having a turbine wheel provided on one end and a compressor wheel provided on the other end; a turbine-side bearing part and a compressor-side bearing part rotatably supporting the turbine shaft and disposed in the bearing hole on a relatively turbine wheel side and on a relatively compressor wheel side, respectively; a cooling oil passage provided radially outside the bearing hole in the turbocharger main body and configured to cool the turbocharger main body with lubricating oil circulated inside; a first oil duct configured to guide lubricating oil after lubricating the compressor-side bearing part to the cooling oil passage; and a second oil duct configured to guide lubricating oil after lubricating the turbine-side bearing part to the cooling oil passage. | 08-07-2014 |
| 20140234075 | EXHAUST GAS TURBOCHARGER - An exhaust gas turbocharger may include a shaft mounted in a bearing housing carrying a compressor wheel and a turbine wheel. The shaft may include a sealing bush arranged on the shaft in a rotationally fixed manner. The sealing bush together with a bearing housing cover may at least partially delimit an annular oil centrifuging space arranged coaxially to the sealing bush. The bearing housing cover may include a guiding nib located radially outside the sealing bush partially covering the sealing bush in axial direction. The guiding nib may be configured to guide oil separated in the oil centrifuging space onto the rotating sealing bush. The rotating sealing bush may be configured to direct the oil into the oil centrifuging space in response to centrifugal force creating an oil swirl. | 08-21-2014 |
| 20140314545 | SHAFT SEALING SYSTEM AND METHOD WITH SEAL OIL RECUPERATOR SYSTEM - A system and method for sealing a shaft disposed for rotation within a casing, where two axially-spaced seal rings of an oil film seal extend around the shaft and define a clearance therebetween. Oil is pumped into the clearance from an oil reservoir and a portion of the oil is received in an annular port defined in the casing between an outer labyrinth seal and one of the axially-spaced seal rings. The oil mixes with a process gas to for an oil and gas mixture. A blower is in fluid communication with the annular port and circulates the oil and gas mixture to a trap where the oil is separated from the process gas and a separated process gas is returned back to the annular port. | 10-23-2014 |
| 20150086332 | TURBOCHARGER - A turbocharger may include a shaft having a central hole longitudinally formed therein, a supply hole for supplying oil to the central hole, and an exhaust hole for discharging the oil from the central hole to the outside of the shaft. The turbocharger may also include a turbine disposed at a side of the shaft and rotated by an exhaust gas, a compressor disposed at the other side of the shaft and compressing intake air, a bearing rotatably supporting the shaft, and a center housing mounted with the bearing. | 03-26-2015 |
| 20150315933 | PRESSURE FED OIL DRAIN FOR GAS TURBINE ENGINE SUMP - A pressure fed oil drain for gas turbine engine ( | 11-05-2015 |
| 20160084259 | WATER PUMP - A water pump includes an impeller, a whirl chamber, a pump body including the impeller and the whirl chamber, a cover case portion and a gasket portion being positioned between the pump body and the cover case portion. The cover case portion is formed with an inlet flow passage in which a fluid is introduced to the whirl chamber and an outlet flow passage in which the fluid is discharged from the whirl chamber. The gasket portion is formed with an inlet hole opening from the whirl chamber to the inlet flow passage and an outlet hole opening from the whirl chamber to the outlet flow passage. The gasket portion includes a portion covering at least one of the inlet flow passage and the outlet flow passage in a state where the portion of the gasket portion is exposed by not being in contact with the pump body. | 03-24-2016 |
| 20170234332 | AUXILIARY SHAFT SEAL FLUSHING SYSTEM OF A CENTRIFUGAL PUMP AND AN AXIAL FLOW PUMP | 08-17-2017 |
