F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
F16J 15/32 (2006.01) B60B 35/18 (2006.01) F16C 19/52 (2006.01) F16C 33/78 (2006.01) G01P 3/44 (2006.01) G01P 3/487 (2006.01)
Patent
CA 2168678
A sealing arrangement for the sealing of a pair of relatively rotatable parts is disclosed as well as a process for its manufacture. The sealing arrangement includes a radially extending support ring, a first sealing element for statically sealing a first of the parts that is rotatable about an axis, and a second sealing element for dynamically sealing a second of the parts that is relatively stationary. The support ring is connected in radial direction with the first and second sealing elements that are respectively made of elastomeric material, and an auxiliary structure for providing a signal which represents rotation of the first part about its axis. The auxiliary structure is a multipolar ring made of a pasty, curable and magnetizable material which is applied in a thin film to that side of the support ring which is intended to be placed opposite a rotation speed sensor during use of the sealing arrangement for detection of the impulses generated by the multipolar ring. The multipolar ring has radially extending north and south poles which alternate in circumferential direction of the multipolar ring and is completely covered by the elastomeric material of the first and/or second sealing element. The sealing arrangement is easily and economically manufactured, has excellent operating characteristics with respect to sealing and rotation speed detection, and has a comparatively lower mass.
Burger Stefan
Eckel Hans-Gerd
Kober Horst
Lannert Berthold
Borden Ladner Gervais Llp
Carl Freudenberg Kg
Freudenberg Carl
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