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1. (WO1991009218) AIR TURBINE STARTER WITH PASSIVE HYDRAULIC CAPACITOR
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/009218 International Application No.: PCT/US1990/007422
Publication Date: 27.06.1991 International Filing Date: 12.12.1990
IPC:
F01D 25/18 (2006.01) ,F01M 11/06 (2006.01) ,F02C 7/277 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
25
Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
18
Lubricating arrangements
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
11
Component parts, details, or accessories, not provided for in, or of interest apart from, groups F01M1/-F01M9/149
06
Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
C
GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
7
Features, component parts, details or accessories, not provided for in, or of interest apart from, groups F02C1/-F02C6/158; Air intakes for jet-propulsion plants
26
Starting; Ignition
268
Starting drives for the rotor
275
Mechanical drives
277
the starter being a turbine
Applicants:
ALLIED-SIGNAL INC. [US/US]; Law Department (C.A. McNally) P.O. Box 2245R Morristown, NJ 07962-2245, US
Inventors:
ZALEWSKI, Edwin, S.; US
ROMINEK, Jon, P.; US
GRIEME, Phillip, L.; US
Agent:
MASSUNG, Howard, G.; Allied-Signal Inc. Law Dept. (C.A. McNally) 101 Columbia Road P.O. Box 2245 Morristown, NJ 07962-2245, US
Priority Data:
450,64013.12.1989US
Title (EN) AIR TURBINE STARTER WITH PASSIVE HYDRAULIC CAPACITOR
(FR) DEMARREUR DE TURBINE A AIR COMPRIME A CONDENSATEUR HYDRAULIQUE PASSIF
Abstract:
(EN) An air turbine starter (20) containing a liquid lubricant (50) is provided with a passive hydraulic capacitor (60) which is charged by operation of the starter. Charging the capacitor partially drains the lubricant reservoir contained in the starter. This partial drainage decreases drag on internal, rotating components (112) of the starter, thereby decreasing parasitic loss in output torque. The capacitor discharges the lubricant back into the starter when the latter discontinues running, thereby satisfying lubrication requirements of an internal overrunning clutch (46).
(FR) Démarreur (20) de turbine à air comprimé contenant un lubrifiant liquide (50), doté d'un condensateur hydraulique passif (60), lequel est chargé par l'actionnement du démarreur. La charge du condensateur draine partiellement le réservoir de lubrifiant contenu dans le démarreur. Cet écoulement partiel réduit la traînée sur les constituants rotatifs internes (112) du démarreur, diminuant ainsi les pertes dans le couple de rotation de sortie. Le condensateur décharge à nouveau le lubrifiant dans le démarreur, lorsque ce dernier arrête de fonctionner, satisfaisant ainsi les conditions de lubrification d'un embrayage de rattrapage interne (46).
Designated States: CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)