MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202641123107 A) filed by Indian Institute Of Science on October 14, 2026, for A Planetary Gearbox For An Actuator And An Actuator Comprising The Same.
Inventors include Aman Singh; Deepak Kapa; and Shishir Nadubettu Yadukumar.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: ABSTRACT “A PLANETARY GEARBOX FOR AN ACTUATOR AND AN ACTUATOR COMPRISING THE SAME” 5 10 15 An actuator comprising an electric motor and a planetary gearbox coupled to the electric motor is disclosed. The planetary gearbox comprises a first-stage sun gear, a plurality of compound planet gears, a first-stage ring gear, a second-stage ring gear, a plurality of second-stage auxiliary planet gears, and a second-stage auxiliary sun gear. Each compound planet gear comprises a first-stage planet gear and a second-stage planet gear. The second stage planet gears and the auxiliary planet gears provide respective load-transmission paths to the second-stage ring gear. The auxiliary sun gear is positioned coaxially with the first stage sun gear, is independently rotatable relative thereto, and meshes with the second stage planet gears and the auxiliary planet gears. The auxiliary sun gear provides radial support against inward displacement of the second-stage planet gears and the auxiliary planet gears toward a central axis, thereby maintaining engagement with the second-stage ring gear and facilitating load sharing and reduced gear dimensions. Fig. 3
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