Vehicle, continuously variable gear mechanism, and transport system

• US 5,244,054 A
• Filed: 10/04/1991
• Issued: 09/14/1993
• Est. Priority Date: 04/04/1989
• Status: Expired due to Term

• Current Assignee: J P M Parry & Associates Limited
• Original Assignee: J P M Parry & Associates Limited
• Inventors: Parry, John P. M.
• Primary Examiner(s): Culbreth, Eric D.
• Application Number:
  US07/768,976
• Time in Patent Office: 711 Days
• Field of Search: 180/165, 180/65.3, 74/198
• US Class Current: 180/165
• CPC Class Codes: B60K 6/105 the accumulator being a flywheel
• CPC Class Codes: F16H 15/40 in which two members co-operative by means of balls, or rollers of uniform effective diameter, not mounted on shafts
• CPC Class Codes: Y02T 10/62 Hybrid vehicles

Abstract

A vehicle has as its prime source of power a fly-wheel (6) that is connected to a driving wheel of the vehicle through a continuously variable transmission mechanism (16). The transmission mechanism comprises conical drive members (53, 54, 82), with a spherical transmission element (55,) 81 between the conical surfaces, to transmit rotary forces from one drive member to the other. In this way rotation energy from the fly-wheel may be transmitted to the drive wheel on acceleration of the vehicle, or transmitted from the drive wheel to the fly-wheel of retardation of the vehicle. The vehicle is for use in a transportation system in which the vehicle travels around a predetermined route, with the fly-wheel being recharged either mechanically or electrically at a vehicle terminus (L).

Claims

1. In combination, a source of motive power and a continuously variable drive transmission, the source of motive power comprising fly-wheel means, and the continuously variable drive transmission comprising first and second drive members, each drive member providing a generally conical transmission surface, the end of narrower diameter of one transmission surface lying adjacent the end of broader diameter of the other transmission surface, further comprising a spherical transmission element having a resilient high friction surface and being adapted to drivingly interengage the two drive members, the combination further comprising a third drive member providing a third generally conical transmission surface, and a second spherical transmission element, having a resilient high friction surface, positioned to drivingly interengage the third drive member and the first drive member, and the third drive member being drivingly connected to the output of the transmission, whereby energy may be returned from the output of the transmission to the fly-wheel means under some circumstances.

2. The combination as claimed in claim 1 wherein said resilient high friction surface is rubber.

3. The combination as claimed in claim 1 further comprising actuating means, for supporting the transmission element and for moving the transmission element longitudinally relative to the drive members so as to vary the ratio of the transmission, said acuating means being adapted to produce unbalanced forces against the transmission element.

4. The combination as claimed in claim 1 comprising actuating means to move both of the transmission elements simultaneously.

5. The combination as claimed in claim 1 wherein said resilient high friction surface is plastic.

6. A transport vehicle comprising:

(a) a vehicle body;

(b) a plurality of wheels in the body including at least one driving wheel; and

(c) in combination, a source of motive power and a continously variable drive transmission, the source of motive power comprising fly-wheel means, and the continuously variable drive transmission comprising first and second drive members, each drive member providing a generally conical transmission surface, the end of narrower diameter of one transmission surface lying adjacent the end of broader diameter of the other transmission surface, the fly-wheel means being connected to the first drive member and the second drive member being connected to an output of the transmission, and the transmission further comprising a spherical transmission element having a resilient high friction surface and being adapted to drivingly interengage the two drive members, the combination further comprising a third drive member providing a third generally conical transmission surface, and a second spherical transmission element, having a resilient high friction surface, positioned to drivingly interengage the third drive member and the first drive member and the third drive member being drivingly connected to the output of the transmission, whereby energy may be returned from the output of the transmission to the fly-wheel means under some circumstances, wherein the fly-wheel means and the continuosly variable drive transmission are provided on the vehicle and the transmission is operative between the fly-wheel means and said driving wheel.

7. A transport system comprising a plurality of vehicles, each vehicle comprising:

(a) a vehicle body,

(b) a plurality of wheels on the body including at least one driving wheel; and

(c) in combination, a source of motive power and a continuously variable drive transmission, the source of motive power comprising fly-wheel means, and the continuously variable drive transmission comprising first and second drive members, each drive member providing a generally conical transmission surface, the end of narrower diameter of one transmission surface lying adjacent the end of broader diameter of the other transmission surface, the fly-wheel means being connected to the first drive member, and the second drive member being connected to an output of the transmission, and the transmission further comprising a spherical transmission element having a resilient high friction surface and being adapted to drivingly inter-engage the two drive members, the combination further comprising a third drive member providing a third generally conical transmission surface, and a second spherical transmission element, having a resilient high friction surface, positioned to drivingly interengage the third drive and the first drive member, and the third drive member being drivingly connected to the output of the transmission, whereby energy may be returned from the output of the transmission to the fly-wheel means under some circumstances, wherein the fly-wheel means and the continuously variable drive transmission are provided on the vehicle and the transmission is operative between the fly-wheel means and said driving wheel,

and means being provided at one or more locations to provide energy to the fly-wheel means of the vehicles.

8. A transport system as claimed in claim 7 wherein said means to provide energy is provided at intervals along a route.

9. A transport system as claimed in claim 7 wherein said means to provide energy is provided at a central location to which the vehicles periodically return.