Title:
遠心ポンプ用、詳細には内燃機関の冷却液ポンプ用低摩擦の環状密閉アセンブリ
Document Type and Number:
Japanese Patent JP5107612
Kind Code:
B2
Abstract:
A sealing assembly including a sealing member made of elastomeric material and PTFE; a supporting armature embedded in the elastomeric material; and, preferably, an annular L-shaped shield cooperating, in use, with the sealing member. The supporting armature has a sleeve portion; and a radial flange portion, which extends towards an axis of symmetry of the sleeve portion, and partly supports a radial portion of the sealing member, projecting towards the axis of symmetry and made of elastomeric material with no supporting armature. The radial portion increases in axial size towards the axis of symmetry, and supports, on its free end, a sleeve made of PTFE and which has been cured to the elastomeric radial portion, the sleeve being arranged asymmetrically with respect to the supporting armature having a cylindrical first end portion projecting axially parallel to and on the same side as the sleeve portion of the supporting armature to form a radial sealing lip, and a conical second end portion projecting axially on the opposite side to and by a greater amount than the first end portion to form an elastically deformable axial sealing lip which, when undeformed, extends farther and farther away from the axis of symmetry as it comes away from the flange portion of the supporting armature, so forming an acute angle with the axis of symmetry.
Inventors:
Claudio Foti
Application Number:
JP2007143334A
Publication Date:
December 26, 2012
Filing Date:
May 30, 2007
Export Citation:
Assignee:
Actie Bora Get Escoev
International Classes:
F04D29/08
Domestic Patent References:
| JP2000310339A |
Foreign References:
| US5346662 | ||||
| US6354598 |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Shinozaki Masami
Jun Tsuruta
Tetsuro Shimada
Shinozaki Masami