Original document(15 pages) Authorized document(15 pages) 中文版
    A controllable mechanical seal includes first and second face elements having first and second radial surfaces. The first element is adapted for rotation with the shaft. The second element is adapted to be stationary within the housing. One of the elements is movable axially relative to the shaft. The first and second surfaces are adapted to define a gap within which there is a thin lubricating fluid film. An actuator is provided for deforming at least one of the surfaces so that the gap converges in a direction from a high pressure side to a low pressure side of the seal. A sensor is provided for measuring a temperature indicative of incipient contact of said surfaces. A control system responsive to the sensor generates an external voltage which is applied to the actuator to control the convergence of the surfaces and thus maintain an optimum thickness of the lubricating film for a wide range of operating conditions.
Application Number
申请号		 86106923 Application Date
申请日		 1986.10.20
Title 名称 Controllable mechanical sealing
Publication Number
公开号		 1011383 Publication Date
公开日		 1987.06.03
Approval Pub. Date 1991.06.05 Granted Pub. Date 1991.06.05
International Classification 分类号 F16J15/16;F16J15/34
Applicant(s) Name
申请人		 BW/IP Industrial Products, Inc.
Address 地址
Inventor(s) Name 发明人 Richard F. Salant;William Edward Key Peter Lawrence Kay
Attorney & Agent 代理人 XIAO ERGANG
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