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1. (WO1991008381) VALVE ARRANGEMENT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/008381 International Application No.: PCT/SE1990/000784
Publication Date: 13.06.1991 International Filing Date: 28.11.1990
Chapter 2 Demand Filed: 25.06.1991
IPC:
F01L 1/24 (2006.01) ,F01M 1/16 (2006.01) ,F01M 9/10 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1
Valve-gear or valve arrangements, e.g. lift-valve gear
20
Adjusting or compensating clearance, i.e. lash adjustment
22
automatically
24
by fluid means, e.g. hydraulically
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
M
LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING
1
Pressure lubrication
16
Controlling lubricant pressure or quantity
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
M
LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING
9
Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/-F01M7/158
10
Lubrication of valve gear or auxiliaries
Applicants:
AB VOLVO [SE/SE]; S-405 08 Göteborg, SE (AllExceptUS)
HÅKANSSON, Olof [SE/SE]; SE (UsOnly)
Inventors:
HÅKANSSON, Olof; SE
Agent:
GRAUDUMS, Valdis ; Albihn West AB Box 142 S-401 22 Göteborg, SE
Priority Data:
8904060-401.12.1989SE
Title (EN) VALVE ARRANGEMENT
(FR) SYSTEME DE SOUPAPE
Abstract:
(EN) A method and device for taking up valve clearance in the valve mechanism (1) of an internal combustion engine, which mechanism includes rocker arms (4) arranged on at least one rocker arm shaft (5). The take-up occurs by means of an actively adjustable, hydraulically operated take-up means (6) operable between two positions, i.e. a withdrawn position and an extended position, which take-up means (6) is arranged at the operating end of the valves rocker arms whose valve clearance is to be taken-up. The hydraulic pressure for operating the take-up means is achieved by a somewhat increased lubrication pressure in the rocker arm shaft (5) for this type of engine, which pressure for said extension of the take-up means (6) is increased by wholly or partially blocking the oil's normal drainage.
(FR) Méthode et système pour réduire le jeu de soupape dans le mécanisme de soupape (1) d'un moteur à combustion interne. Ce mécanisme comprend des culbuteurs (4) placés sur au moins une tige (5). Le jeu de soupape est diminué grâce à un dispositif réglable à commande hydraulique (6) qui fonctionne entre deux positions, à savoir position de retrait et position avancée. Ce dispositif (6) est installé à l'extrémité de commande des culbuteurs de soupapes dont il faut compenser le jeu. La pression hydraulique nécessaire au fonctionnement de ce système est obtenue en augmentant légèrement la pression de lubrification dans la tige du culbuteur (5) pour ce type de moteur. Pour augmenter cette pression, on bloque totalement ou partiellement l'évacuation normale de l'huile.
Designated States: BR, JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: Swedish (SV)
Also published as:
ES2060349EP0504223US5193497JPH05503131DE000069006744DK0504223