Motors for Carbon Neutral Flight in the FutureWhat Tamagawa can do Now for Environment

As one of the leading company of Motor’s R&D, Tamagawa has been working to develop motors contributing to Carbon Neutral Growth. With the rise of Electric aircraft and eVTOL, Tamagawa is exploring the motors which realize ”Less CO2 Emission”, “Fuel-saving”, “Electrification of Aircraft” and “Sustainability”.

March 16, 2022

01.Tamagawa Motors x Carbon Neutral Growth

With the growth of Carbon Neutral efforts in Aircraft industry, Tamagawa is actively involved in the Research and Development of Motors for Electric Aircraft, eVTOL and other contributive aircraft applications.

02.Electric Taxing Motor

CO2 Emission & Fuel-saving

Conventional way of taxing is fuel-consuming and releases large amount of carbon dioxide. Tamagawa developed Electric Taxing Motor which enables self-propelled taxing equipped in tires of Aircraft. This Motor contributes to reduce CO2 emission and fuel saving. This Motor is designed for Regional Jets having maximum speed with 20 knots.

Taxing Motor

Taxing

Built-in clutch enables high output by combining gear units

Taking-off & Landing

Makes less susceptible to high-speed tire rotation by separating gear units

03.High Power Density Motor System

Contribution to Electrification of Aircraft

From 2020, Tamagawa has worked on research and development of High-power and High-density Motors / Inverters for hybrid electric and all electric aircraft. We are still making improvements for future Carbon Neutral Flight.

System Overview

Usage

STEP 1: Hydraulic Pump Application
Environmental Control System Fan Application
STEP 2: eVTOL, Small aircraft

Description

Motor and Controller are integrated to reduce the weight of the entire system.
230 VAC input power is rectified by the Convertor and generates high voltage for motor system densification.

Item	Specification
Motor Power	20 kW
Rated Speed	6,000 rpm
Motor Torque	32 Nm
Power Weight Ratio	4.0 kW/kg
Motor / Controller Efficiency	95%
Cooling	Air Cooling
Input Power	AC230 Vrms, 3 phase, 400 Hz (NOM)
Temperature	-40 to 70 degree C
Altitude	25,000 ft

High Density

High density & weight saving winding with flat type aluminum wire

High Power

Special arrangement of magnet
(Halbach array)

Advanced Cooling Technology

High thermal conductive material & Integrated fan with rotor

04.Hybrid Brake System

Low maintenance with sustainability

Current commercial aircrafts have contact friction brakes with multiple discs and this structure requires frequent inspections and overhauls due to disc wear. Tamagawa has developed contactless Hybrid Brake System using electro magnetic force which enables low maintenance with sustainability.

Previous Issue

Motors survive through the ages

Tamagawa keeps on evolving with the changing times

Tamagawa Seiki Co., Ltd. has expanded the markets and product lineup of Motors since its foundation in 1938. As a leading manufacturer of Motors, Tamagawa continues to develop various kinds of Motors which perfectly fit for changing times.