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Title: Dual range infinitely variable transmission

Abstract

This patent describes in a transaxle assembly comprising an infinitely variably belt and sheave assembly driving sheave portions and driven sheave portions, a housing assembly enclosing the sheave portions. It includes a torque input shaft coaxially disposed with respect to the driving sheave portions, means for drivably connecting the driving sheave portions and the input shaft; a secondary shaft having an axis in spaced parallel relationship with respect to the torque input shaft. The driven sheave portions being mounted for rotation on the axis of the secondary shaft; a flexible drive member driveable connected to the input sheave portions and the output sheave portions. The flexible drive member engaging the input and output sheave portions at an effective pitch diameter for each sheave portion; fluid pressure servo means for adjustable positioning the sheave portions to effect variations in the effective pitch diameters of the driving sheave portions and the driven sheave portions; a countershaft mounted in spaced parallel dispositions with respect to the secondary shaft, a bearing assembly means for journalling the countershaft in the housing assembly, a high speed range gear train connecting the secondary shaft with the countershaft; fluid pressure operated clutch means for activating and deactivating selectivelymore » the high speed range gear train and the low speed range gear train; and planetary forward and reverse means disposed concentrically with respect to the countershaft including clutch means.« less

Inventors:
Publication Date:
OSTI Identifier:
7226230
Patent Number(s):
US 4876920; A
Application Number:
PPN: US 7-216065A
Assignee:
Ford Motor Co., Dearborn, MI
Resource Type:
Patent
Resource Relation:
Patent File Date: 7 Jul 1988
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; MECHANICAL TRANSMISSIONS; DESIGN; PERFORMANCE; PRESSURE CONTROL; SERVOMECHANISMS; SHAFTS; TORQUE; CONTROL; CONTROL EQUIPMENT; EQUIPMENT; MACHINE PARTS; 330602* - Vehicle Design Factors- Engine-Transmission Matching

Citation Formats

Eichenberger, P. Dual range infinitely variable transmission. United States: N. p., 1989. Web.
Eichenberger, P. Dual range infinitely variable transmission. United States.
Eichenberger, P. 1989. "Dual range infinitely variable transmission". United States.
@article{osti_7226230,
title = {Dual range infinitely variable transmission},
author = {Eichenberger, P},
abstractNote = {This patent describes in a transaxle assembly comprising an infinitely variably belt and sheave assembly driving sheave portions and driven sheave portions, a housing assembly enclosing the sheave portions. It includes a torque input shaft coaxially disposed with respect to the driving sheave portions, means for drivably connecting the driving sheave portions and the input shaft; a secondary shaft having an axis in spaced parallel relationship with respect to the torque input shaft. The driven sheave portions being mounted for rotation on the axis of the secondary shaft; a flexible drive member driveable connected to the input sheave portions and the output sheave portions. The flexible drive member engaging the input and output sheave portions at an effective pitch diameter for each sheave portion; fluid pressure servo means for adjustable positioning the sheave portions to effect variations in the effective pitch diameters of the driving sheave portions and the driven sheave portions; a countershaft mounted in spaced parallel dispositions with respect to the secondary shaft, a bearing assembly means for journalling the countershaft in the housing assembly, a high speed range gear train connecting the secondary shaft with the countershaft; fluid pressure operated clutch means for activating and deactivating selectively the high speed range gear train and the low speed range gear train; and planetary forward and reverse means disposed concentrically with respect to the countershaft including clutch means.},
doi = {},
url = {https://www.osti.gov/biblio/7226230}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 31 00:00:00 EST 1989},
month = {Tue Oct 31 00:00:00 EST 1989}
}