Infinitely Variable Transmission has the Gearing Range of an 11-speed Automotive Transmission  

Oleh:

Gordon, Leslie (Editor)

Jenis: Article from Bulletin/Magazine - ilmiah internasional
Dalam koleksi: Machine Design (Soft Copy ada dalam http://search.proquest.com/) vol. 83 no. 12 (Jul. 2011), page 44-45.
Topik: Gears; Design Engineering; Product Design; Prototypes

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Perpustakaan Pusat (Semanggi) Nomor Panggil: MM44 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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The Telam constant-gear-mesh infinitely variable transmission (IVT) from Tom Troester is a special type of continuously variable transmission (CVT). In contrast to standard transmissions, which have only finite or step gear ratios producing three, four, or five speeds, CVTs additionally have all ratios available between the gears. The Telam's constant-gear-mesh design is unique in CVTs. The scalable design is lightweight and efficient because it needs no high parasitic loadings to increase the normal force. The Telam CVT has both forward and reverse rotation as well as a geared neutral inherent in the design, making it what's called an infinitely variable transmission (IVT). Prototypes have demonstrated a forward ratio range of over 18:1 and a reverse ratio range of over 5:1. This is equivalent to an 11-speed conventional automotive transmission. The Telam IVT's wide ratio range lets it interface to a flywheel battery for a simple practical hybrid vehicle that could recover 70% of the braking energy of every-day type local driving.

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