[특허]Hydrostatic and active control movable pad bearing

Hydrostatic and active control movable pad bearing 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16C-032/06
출원번호	US-0464555 (1995-06-05)
발명자 / 주소	Ide Russell D. (Exeter RI) Zeidan Fouad Y. (Warwick RI)
출원인 / 주소	KMC, Inc. (RI 02by said Fouad Zeidan)
인용정보	피인용 횟수 : 29 인용 특허 : 0

초록 ▼

A one piece hydrodynamic bearing which can include hydrostatic support features. The pads are supported on a single thin web for pivoting on a support structure which can include one or more beam-like members. The bearings may have hydrostatic and active control attributes and is very attractive in cryogenic applications where it is very difficult to prevent leakage in conventional hydrostatic tilt pad bearings. The hydrostatic feed through the post eliminates this problem completely and prevents the fretting at the pivots common with conventional tilt pad bearings. A cavity provided under a pad support membrane can be used as an active control device. The pressure can cause the bearing set or assembly clearance to be reduced thus providing better damping and centering capability. The preload in the pad can be actively controlled in this manner. The pad has a limiting device to prevent a negative pre-load condition from occurring. This active control of bearing clearance can allow bearings to operate at large spreads in temperatures.

대표청구항 ▼

In an assembly which includes a shaft and a supply of liquid, a hydrodynamic fluid film bearing for pressurizing the liquid so as to support the shaft for rotation on a pressurized liquid film, the bearing comprising: a plurality of substantially circumferential bearing pads spaced about the shaft, a bearing housing extending radially outside the bearing pads and encircling the bearing pads and a plurality of thin webs equal in number to the number of bearing pads, each web being supported on a membrane formed in the housing and extending radially between one of the pads and the membrane in the bearing housing so as to support the pad for pivoting movement, each of the webs having a radial length and a circumferential width, the radial length being greater than the circumferential width; whereby under load, the webs flex so that the pads tilt relative to the shaft so as to form a converging wedge between the shaft and pad surfaces, the converging wedge causing pressurization of the liquid so as to form a pressurized liquid film between the shaft and pad.

이 특허를 인용한 특허 (29)

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Gonzalez, Jair J., Bearing assemblies including tilting bearing elements and superhard sliding bearing elements, bearing assemblies including a substantially continuous bearing element and superhard sliding bearing elements, and related bearing apparatuses and methods.
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Gonzalez, Jair Jahaziel, Bearing assemblies including tilting bearing elements and superhard sliding bearing elements, bearing assemblies including a substantially continuous bearing element and superhard sliding bearing elements, and related bearing apparatuses and methods.
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Kirkhope, Kennedy J., Bearing assembly.
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Kerstetter, Scott, Combination mud motor flow diverter and tiled bearing, and bearing assemblies including same.
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Roberts, Jr., Charles E., Fluid bearings with adjustable frictional load characteristics.
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Roberts, Jr., Charles E., Fluid bearings with adjustable frictional load characteristics.
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Dietle, Lannie Laroy; Ritchie, Aaron Paul, High pressure dynamic sealing arrangement.
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Perez, Robert X.; Ibanez, Natividad S., Hydrodynamic bearings having strain sensors.
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Bischof, Kenneth R.; Lindner, Randy Gerard; Renard, Timothy J.; Richards, II, Thomas Lamar, Integral tilting pad bearing.
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Manmohan S. Kalsi ; Dezso Somogyi ; Lannie L. Dietle, Load responsive hydrodynamic bearing.
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Timuska Karlis,SEX ; Sundstrom Mats,SEX, Oil-free screw rotor apparatus.
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Nicholas, John C.; Shoup, Thomas P.; Fiegl, Adam; Rockefeller, Don H.; Ronan, Josh, Reverse bypass cooling for tilted pad journal and tilting pad thrust bearings.
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Ide, Russell D.; Ide, Russell C., Thrust bearing assembly.
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Ide, Russell Douglas, Thrust bearing assembly.
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Ide,Russell Douglas, Thrust bearing assembly.
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Kämmerer, Steffen; Rudolph, Ralph, Tilting pad and radial plain bearing.
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New,Nigel Henry, Tilting pad bearing assembly.
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Kennedy, Donald Michael, Tilting pad journal bearing assembly.
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Ryu, Keun; Ashton, Zachary, Tilting pad journal bearing for use in a turbocharger.
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Roberts, Jr., Charles E., Variable area journal bearing.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Hydrostatic and active control movable pad bearing 원문보기

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Hydrostatic and active control movable pad bearing 원문보기

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이 특허를 인용한 특허 (29)

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