EP 0375792 B1 19950118 - Adjustable valve spring retainer for internal combustion engine.
Title (en)
Adjustable valve spring retainer for internal combustion engine.
Title (de)
Verstellbarer Ventilfederteller für eine Brennkraftmaschine.
Title (fr)
Cuvette du ressort de soupape réglable pour un moteur à combustion interne.
Publication
Application
Priority
- EP 88121323 A 19820329
- EP 82301647 A 19820329
Abstract (en)
[origin: EP0375792A1] An adjustor to compensate for thermal expansion between a valve stem and its operation means within an internal combustion engine. The adjustor comprises a valve spring retainer member (60; Fig 3) having at one end a valve stem receipt aperture (76; 101), said valve spring retainer member (60; Fig 3) being removably retained upon said valve stem by a keeper key. A cap member (66; 191) is located to the other end of said valve spring retainer member (60; Fig 3) and is longitudinally adjustable in position with respect thereto. Hydraulically operable restoration permitting means (78,84; 100, 102, 104, 106, 108, 110, 112) are provided to permit either (a) the restoration of a first longitudinal positional relationship between said cap member (66; 191) and said operation means and, as a result, corresponding restoration in an opposite direction of a second longitudinal positional relationship between said cap member (66; 191) and said valve stem, or (b) the restoration of said second longitudinal positional relationship and, as a result, corresponding restoration in an opposite direction of said first longitudinal positional relationship. The said adjustment means (78,84; 100,102,104,106,108, 110, 112) includes means (80,81,90; 96; 106,108) to vary the longitudinal distance between said cap member (66; 191) and said valve spring retainer member (60; Fig 3), said cap member (66; 191) being arranged neither to be directly attached to said valve stem in normal operation nor to have direct contact with said valve stem.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Citation (examination)
- CH 322762 A 19570630 - SULZER AG [CH]
- FR 2370858 A1 19780609 - MOTOMAK [DE]
- FR 2476740 A1 19810828 - MOTOMAK [DE]
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0375792 A1 19900704; EP 0375792 B1 19950118; DE 3280067 D1 19900125; EP 0090105 A1 19831005; EP 0090105 B1 19891220
DOCDB simple family (application)
EP 88121323 A 19820329; DE 3280067 T 19820329; EP 82301647 A 19820329