Automatic transmission - Wikipedia
The first automatic transmission to use a torque converter (instead of a fluid coupling) was the Buick Dynaflow, which was introduced for the 1948 model year. In normal driving, the Dynaflow used only the top gear, relying on the torque multiplication of …
When Was the First Automatic Transmission Invented?
Many historians consider the first automatic transmission to be the one belonging to the 1904 Sturtevant horseless carriage, built by the Sturtevant brothers of Boston. This early automatic transmission had two forward speeds (but no reverse gear) …
A History of the Automatic Transmission - MotorBiscuit.com
2022年12月2日 · However, General Motors Corporation employees Edward A. Deeds and Charles F. Kettering developed the first automatic transmission widely employed in automobiles in 1924. They called their invention the “Clutchless Hydra-Matic” and introduced it in Oldsmobiles for the 1928 model year.
What Is The first automatic transmission vehicle in the world ...
2023年11月27日 · The 1904 Sturtevant “horseless carriage gearbox” stands as a pivotal development in automotive history, often credited as the earliest automatic transmission for motor vehicles. Originating in Boston, USA, this transmission featured two forward gear ratios and engine-driven flyweights that dictated gear selection.
The History of the First Automatic Transmission | Old News Club
A steam engineer known as Alfred Horner Munro produced the very first automatic transmission in 1921 and received a patent for it in 1923. Using air pressure rather than hydraulic fluid, he developed the automatic transmission that featured four forward gears.
A Brief History of the Automatic Transmission
The first automatic transmission was invented in 1921 by a Canadian steam engineer, Alfred Horner Munro. Munro designed his device to use compressed air rather than hydraulic fluid so it lacked power and never became sold commercially.
The Evolution of Automatic Transmissions Part 1 | Sonnax
2021年3月30日 · In 1939 Cadillac and Oldsmobile became the first manufacturers to utilize a fully automatic transmission in a production vehicle; they named it the Hydra-matic, which would later be named the Turbo Hydra-matic. It was developed for rear-wheel-drive vehicles and had four Forward speeds plus Reverse.
Automatic Transmission: The History of A Great Innovation
2018年12月11日 · The first automatic transmission in a production car was GM’s Hydramatic, introduced in 1939 in Cadillac and Oldsmobile.
The History of the Automatic Transmission - Transparts Warehouse
2023年4月25日 · Munro used his knowledge as a steam engineer to invent the first automatic transmission in 1921 and patented it in 1923. Munro’s automatic transmission consisted of four forward gears that used compressed air for power. There wasn’t a reverse or parking gear in this transmission model.
The History of the Transmission: From Standard to Auto
2024年8月19日 · In the early 1920s, Munro created the first automatic transmission, which featured four forward gears using compressed air. This design was a departure from traditional manual systems because it automated processes, reducing human error …