Ernest Henry was a mechanical engineer, born in Geneva in 1885 and died in Paris in 1950, who designed racing engines for Peugeot and Ballot. He joined Peugeot in 1911 and drew the 1912 Grand Prix engine, which combined four valves per cylinder with double overhead camshafts for the first time and went on to win the 1912 French Grand Prix and the 1913 Indianapolis 500. In 1914 he adapted the layout to a 500 cc racing motorcycle, the first with double overhead camshafts. During the First World War he designed the Peugeot 8Aa aircraft V8. After the war he drew the straight-eight Ballot cars of 1919 and the Sunbeam Grand Prix cars of 1922, and he did little engine work after 1920. Biographers rank him among the finest engine designers.
Facts
Defining ContributionFirst to combine four valves per cylinder with double overhead camshafts, in the 1912 Peugeot racing engine 1 Connections
Invented
Source Peugeot 8Aa (Wikipedia)
Worked In Mode
Source Ernest Henry (engineer) (Wikipedia)
Sources
1. Ernest Henry (engineer) (Wikipedia)
Lead, life dates
Ernest Henry (1885 in Geneva, Switzerland, 1950 in Paris, France) was a mechanical engineer.
At Peugeot
They were not the first "4 valves per cylinder" or the first "dual overhead cam head," but they were the first in the world to combine the two techniques.
In Group: Automotive Engineers and Designers, Lead, engine designer
He developed auto racing engines, and is especially well known for his work for Peugeot and Ballot
Worked In Mode: Automobile Transport, Lead, racing engines
He developed auto racing engines, and is especially well known for his work for Peugeot and Ballot
View the SourcePeugeot 8Aa (Wikipedia)
Invented: Peugeot 8Aa, Specifications, general characteristicsQuote, Invented: Peugeot 8Aa, Specifications, general characteristics
Designer: Ernest Henry
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