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1. (WO1998049468) CONTINUOUSLY VARIABLE HYDROSTATIC TRANSMISSION INCLUDING 1:1 RATIO LOCK-UP CLUTCH
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1998/049468 International Application No.: PCT/US1998/008263
Publication Date: 05.11.1998 International Filing Date: 24.04.1998
Chapter 2 Demand Filed: 30.10.1998
IPC:
F16H 39/10 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
39
Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
04
with liquid motor and pump combined in one unit
06
pump and motor being of the same type
08
each with one main shaft and provided with pistons reciprocating in cylinders
10
with cylinders arranged around, and parallel or approximately parallel to, the main axis of the gearing
Applicants:
GENERAL DYNAMICS LAND SYSTEMS, INC. [US/US]; 38500 Mound Road Sterling Heights, MI 48310, US
Inventors:
FOLSOM, Lawrence, Ray; US
TUCKER, Clive; US
Agent:
GARRETT, Arthur, S. ; Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P. 1300 I Street, N.W. Washington, DC 20005-3315, US
ZOTTER, Bruce, C.; Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P. 1300 I Street, N.W. Washington, DC 20005-3315, US
Priority Data:
09/062,72820.04.1998US
60/044,32425.04.1997US
Title (EN) CONTINUOUSLY VARIABLE HYDROSTATIC TRANSMISSION INCLUDING 1:1 RATIO LOCK-UP CLUTCH
(FR) TRANSMISSION HYDROSTATIQUE A CHANGEMENT DE VITESSES CONTINU AYANT UN MECANISME DE VERROUILLAGE DE RAPPORT 1/1
Abstract:
(EN) In a continuously variable hydrostatic transmission including a hydraulic pump unit (18) driven by an input shaft (14), a grounded hydraulic motor unit (20), and an intermediate, wedge-shaped swashplate (22) for developing torque on an output shaft (16) in response to pumped exchanges of hydraulic fluid between the pump and motor units (18, 20) through swashplate ports, a ratio controller is provided to vary transmission ratio by changing the swashplate angular orientation and to engage a lock-up clutch (26) directly mechanically coupling the input shaft (14) to the output shaft (16) when a 1:1 transmission ratio is set.
(FR) Dans cette transmission hydrostatique à changement de vitesses continu comportant une unité de pompage hydraulique (18) entraînée par un arbre de commande (14), une unité motrice hydraulique mise à la masse (20) et un plateau oscillant intermédiaire taillé en biseau (22), pour donner lieu à un couple sur un arbre de sortie (16) en réaction aux échanges pompés de fluide hydraulique entre l'unité de pompage et l'unité motrice (18, 20) par le canal des orifices du plateau oscillant, est installé un organe de commande de rapport destiné à modifier le rapport de transmission par changement de l'orientation angulaire du plateau oscillant et à entrer en contact avec un mécanisme de verrouillage (26) couplant directement par voie mécanique l'arbre de commande (14) à l'arbre de sortie (16) lorsque un rapport de transmission 1/1 est établi.
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Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)