Entries |
Document | Title | Date |
20080277881 | Surface Tension Seal - Present invention involves a seal means suitable to replace the classic seals. For instance the seal means of present invention can be a liquid seal ring ( | 11-13-2008 |
20120280457 | HYDRODYNAMIC SEAL WITH INCREASED FLEXIBILITY SEALING ELEMENT - A hydrodynamic shaft seal assembly includes a PTFE seal member having outer and inner sections. The outer section is affixed to an annular carrier. The inner section is free and includes at least one hydrodynamic groove in direct running contact with a rotating shaft or wear sleeve. A mid-portion of the seal member is formed between the inner and outer sections. The mid-portion is thinned and includes one or more annular undulations formed therein to improve flexibility of the inner section relative to the outer section. The seal assembly may include one or more excluder features. A rubber casing is molded about portions of the carrier. Preferably, one or more annular undulations are formed in a coining operation during the rubber molding process. | 11-08-2012 |
20120299248 | Shaft sealing ring for a barrier oil sealing system of a hydrogen-cooled generator - A shaft sealing ring for a barrier oil sealing system of a hydrogen-cooled generator is designed, in the installed state, to bear radially against a generator shaft by way of its running surface arranged on the inner side and to interact with the generator shaft, under the action of a barrier oil, with hydrogen sealing, wherein the shaft sealing ring is produced from a lead bronze material. | 11-29-2012 |
20130187339 | Near Flow Path Seal with Axially Flexible Arms - The present application provides a near flow path seal for a gas turbine. The near flow path seal includes a base, a pair of arms extending from the base, and a curved indentation positioned between the pair of arms. | 07-25-2013 |
20130221620 | SEAL ASSEMBLY FOR A TURBOMACHINE - A seal assembly for a turbomachine includes a seal ring rotatable between a first position and a second position and having a plurality of tunnels. Also included is a back ring located adjacent the seal ring and having a plurality of apertures that align with more of the plurality of tunnels of the seal ring when at the second position than at the first position. Further included is a retention piece operably connecting the seal ring and the back ring. | 08-29-2013 |
20140042707 | Hydrodynamic sealing element - A sealing element of a hydrodynamic seal for relatively rotating elements, having a sealing surface ( | 02-13-2014 |
20140197600 | SLIDING PARTS - Sliding parts are provided wherein a plurality of pumping areas for generating pumping action via the relative rotational sliding of a stationary ring and a rotating ring is discontinuously formed in a circumferential direction on a sealing face of one of the stationary ring and rotating ring so as to communicate with a sealed fluid-containing space. The pumping areas are provided with intake pumping areas operating in a direction in which the sealed fluid is drawn in and outflow pumping areas operating in a direction in which the sealed fluid is expelled. A plurality of dynamic pressure-generating grooves for generating dynamic pressure via the relative rotational sliding of the stationary ring and the rotating ring are formed in a circumferential direction on a sealing face of the other of the stationary ring and the rotating ring so as to communicate with the sealed fluid-containing space. | 07-17-2014 |