Device for adapting continuously variable transmissions to infinitely variable transmissions with forward-neutral-reverse capabilities

Wilkes, Donald F; Purvis, James W; Miller, A Keith

Title: Device for adapting continuously variable transmissions to infinitely variable transmissions with forward-neutral-reverse capabilities

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Abstract

An infinitely variable transmission is capable of operating between a maximum speed in one direction and a minimum speed in an opposite direction, including a zero output angular velocity, while being supplied with energy at a constant angular velocity. Input energy is divided between a first power path carrying an orbital set of elements and a second path that includes a variable speed adjustment mechanism. The second power path also connects with the orbital set of elements in such a way as to vary the rate of angular rotation thereof. The combined effects of power from the first and second power paths are combined and delivered to an output element by the orbital element set. The transmission can be designed to operate over a preselected ratio of forward to reverse output speeds.

Inventors:

Wilkes, Donald F ^[1]; Purvis, James W ^[1]; Miller, A Keith ^[1]

Albuquerque, NM

Issue Date:: 1997-01-01

Research Org.:: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)

OSTI Identifier:: 870966

Patent Number(s):: 5632703

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16H - GEARING

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F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16H - GEARING
F16H2037/088 - {Power split variators with summing differentials, with the input of the CVT connected or connectable to the input shaft}
F16H2035/103 - {with drive interruption by structural failure of overload preventing means, e.g. using shear pins}
F16H37/0846 - {CVT using endless flexible members}

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DOE Contract Number:: AC04-76

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: device; adapting; continuously; variable; transmissions; infinitely; forward-neutral-reverse; capabilities; transmission; capable; operating; maximum; speed; direction; minimum; opposite; including; zero; output; angular; velocity; supplied; energy; constant; input; divided; power; path; carrying; orbital; set; elements; adjustment; mechanism; connects; vary; rate; rotation; combined; effects; paths; delivered; element; designed; operate; preselected; ratio; forward; reverse; speeds; variable transmission; angular velocity; opposite direction; continuously variable; variable speed; adjustment mechanism; input energy; infinitely variable; constant angular; variable transmissions; angular rotation; /475/474/

Citation Formats


                    Wilkes, Donald F, Purvis, James W, and Miller, A Keith. Device for adapting continuously variable transmissions to infinitely variable transmissions with forward-neutral-reverse capabilities.  United States: N. p., 1997. 
        Web.

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                    Wilkes, Donald F, Purvis, James W, & Miller, A Keith. Device for adapting continuously variable transmissions to infinitely variable transmissions with forward-neutral-reverse capabilities.  United States.

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                    Wilkes, Donald F, Purvis, James W, and Miller, A Keith. Wed .  
        "Device for adapting continuously variable transmissions to infinitely variable transmissions with forward-neutral-reverse capabilities".  United States.  https://www.osti.gov/servlets/purl/870966.

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@article{osti_870966,

  title        = {Device for adapting continuously variable transmissions to infinitely variable transmissions with forward-neutral-reverse capabilities},

  author       = {Wilkes, Donald F and Purvis, James W and Miller, A Keith},

  abstractNote = {An infinitely variable transmission is capable of operating between a maximum speed in one direction and a minimum speed in an opposite direction, including a zero output angular velocity, while being supplied with energy at a constant angular velocity. Input energy is divided between a first power path carrying an orbital set of elements and a second path that includes a variable speed adjustment mechanism. The second power path also connects with the orbital set of elements in such a way as to vary the rate of angular rotation thereof. The combined effects of power from the first and second power paths are combined and delivered to an output element by the orbital element set. The transmission can be designed to operate over a preselected ratio of forward to reverse output speeds.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1997},

  month        = {1}

}

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