Gear housing for accommodating gear train of toroidal continuously variable transmission
First Claim
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1. A toroidal continuously variable transmission comprising:
- a transmission casing;
coaxial input and output discs having facing toric surfaces;
a gear housing disposed within and fixedly secured to said transmission casing; and
a gear train within said gear housing and including an output gear in driving connection with said output discs,said gear housing including a first housing part and a second housing part fixedly secured to said first housing part to form a dual-walled structure which is so constructed and arranged as to enclose said gear train to confine noise derived from said gear train therein.
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Abstract
A gear noise free toroidal continuously variable transmission is disclosed wherein in order to suppress occurrence of gear noise, a gear train is accommodated in a gear housing which includes a first housing part fixedly secured to a transmission casing and a second housing part fixedly secured to the first housing part to form a dual-walled structure.
263 Citations
5 Claims
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1. A toroidal continuously variable transmission comprising:
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a transmission casing; coaxial input and output discs having facing toric surfaces; a gear housing disposed within and fixedly secured to said transmission casing; and a gear train within said gear housing and including an output gear in driving connection with said output discs, said gear housing including a first housing part and a second housing part fixedly secured to said first housing part to form a dual-walled structure which is so constructed and arranged as to enclose said gear train to confine noise derived from said gear train therein.
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2. A toroidal continuously variable transmission comprising:
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a transmission casing; coaxial input and output discs having facing toric surfaces; a gear housing disposed within and fixedly secured to said transmission casing; and a gear train within said gear housing and including an output gear in driving connection with said output discs, said gear housing including a first housing part and a second housing part fixedly secured to said first housing part to form a dual-walled structure which is so constructed and arranged as to enclose said gear train to confine noise derived from said gear train therein, wherein said first housing part includes a generally circular first portion fixedly secured to said transmission casing and a first skirt portion extending from said first portion, and said second housing part includes a generally circular second portion fixedly secured to said generally circular first portion of said first housing part and a second skirt portion extending from said generally circular second portion. - View Dependent Claims (3, 4)
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5. A toroidal continuously variable transmission comprising:
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a transmission casing; a first set of coaxial input and output discs having facing toric surfaces; a second set of coaxial input and output discs having facing toric surfaces; said output discs of said first and second sets being disposed adjacent to each other; a gear housing disposed between said output discs and fixedly secured to said transmission casing; and a gear train within said gear housing and including an output gear in driving connection with said output discs; said gear housing including a first housing part and a second housing part fixedly secured to said first housing part to form a dual-walled structure which is so constructed and arranged as to enclose said gear train to confine noise derived from said gear train therein.
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Specification