EP 1174618 A1 20020123 - HEMISPHERICAL SHOE
Title (en)
HEMISPHERICAL SHOE
Title (de)
HEMISPHÄRISCHER SCHUH
Title (fr)
PATIN HEMISPHERIQUE
Publication
Application
Priority
- JP 0101114 W 20010216
- JP 2000059662 A 20000303
Abstract (en)
A semi-spherical shoe 1 has a convex semi-spherical surface 1A which is disposed in sliding contact with a semi-spherical recess 2A formed in a piston 2. The convex semi-spherical surface 1A is defined by a convex surface of a revolving body which is formed when an arc of a circle having a radius of R2 and having a center C offset from the axis L of the semi-spherical shoe in an direction orthogonal thereto is rotated about the axis L as a center of rotation. A lead-in 1G which is arcuate in section is formed toward the top of the convex semi-spherical surface 1A and maintains a clearance 7 with respect to the semi-spherical recess 2A. A lubricant oil which is stored in a space 4 is smoothly supplied onto a sliding surface 1F through the clearance 7. The invention provides a semi-spherical shoe 1 having a good sliding response and an increased length of useful life. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 27/08 (2006.01)
CPC (source: EP KR US)
F04B 27/08 (2013.01 - KR); F04B 27/0886 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1174618 A1 20020123; EP 1174618 A4 20030102; BR 0104746 A 20020115; BR 0104746 B1 20090811; CN 1162617 C 20040818; CN 1364222 A 20020814; HU P0201553 A2 20020828; JP 2001248547 A 20010914; KR 20020000880 A 20020105; US 2002134231 A1 20020926; WO 0165116 A1 20010907
DOCDB simple family (application)
EP 01904499 A 20010216; BR 0104746 A 20010216; CN 01800408 A 20010216; HU P0201553 A 20010216; JP 0101114 W 20010216; JP 2000059662 A 20000303; KR 20017013745 A 20011026; US 7003001 A 20011019