CA2220669A1 - Continuously variable transmission utilizing variable viscous couplings - Google Patents

Continuously variable transmission utilizing variable viscous couplings

Info

Publication number
CA2220669A1
CA2220669A1 CA002220669A CA2220669A CA2220669A1 CA 2220669 A1 CA2220669 A1 CA 2220669A1 CA 002220669 A CA002220669 A CA 002220669A CA 2220669 A CA2220669 A CA 2220669A CA 2220669 A1 CA2220669 A1 CA 2220669A1
Authority
CA
Canada
Prior art keywords
variable
viscous coupling
transmission utilizing
continuously variable
variable transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002220669A
Other languages
French (fr)
Other versions
CA2220669C (en
Inventor
Thomas A. Johnston
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/437,021 external-priority patent/US5766108A/en
Application filed by Individual filed Critical Individual
Publication of CA2220669A1 publication Critical patent/CA2220669A1/en
Application granted granted Critical
Publication of CA2220669C publication Critical patent/CA2220669C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • F16H3/721—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with an energy dissipating device, e.g. regulating brake or fluid throttle, in order to vary speed continuously

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

A continuously variable transmission having viscous couplings (64, 46, 48) and planetary gearsets (20, 62, 92) with input on sun gear (30) with starting viscous coupling (46) for low speed starting while the variable ratio viscous coupling (48) controls the output speed ratio. The reversible viscous coupling (64) is controlled for reverse. Full engagement of the variable ratio viscous coupling (48) causes maximum output speed.
CA002220669A 1995-05-08 1996-05-07 Continuously variable transmission utilizing variable viscous couplings Expired - Fee Related CA2220669C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/437,021 1995-05-08
US08/437,021 US5766108A (en) 1995-05-08 1995-05-08 Continuously variable transmission utilizing variable viscous coupling
PCT/US1996/006402 WO1996035892A1 (en) 1995-05-08 1996-05-07 Continuously variable transmission utilizing variable viscous couplings

Publications (2)

Publication Number Publication Date
CA2220669A1 true CA2220669A1 (en) 1996-11-14
CA2220669C CA2220669C (en) 2006-08-01

Family

ID=36764294

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002220669A Expired - Fee Related CA2220669C (en) 1995-05-08 1996-05-07 Continuously variable transmission utilizing variable viscous couplings

Country Status (1)

Country Link
CA (1) CA2220669C (en)

Also Published As

Publication number Publication date
CA2220669C (en) 2006-08-01

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20080507