Patent Dispute With Herbert Akroyd Stuart
Akroyd-Stuart's compression ignition engine (as opposed to spark-ignition) was patented two years earlier than Diesel's similar engine; Diesel's patentable idea was to increase the pressure. Due to the lower pressures used, the hot bulb engine, with an internal pressure of about 90 PSI, as opposed to the Diesel engine's c. 500 PSI, had only about a 12% thermal efficiency versus more than 50% for some large Diesels. Details of the claim that a patent submitted by Herbert Akroyd Stuart has pre-dated that of Rudolf Diesel may be found under the name of that inventor.
The high compression and thermal efficiency is what distinguishes the patent granted to Diesel from a hot bulb engine patent.
Read more about this topic: Rudolf Diesel
Famous quotes containing the words patent, dispute, herbert and/or stuart:
“This is the patent age of new inventions
For killing bodies, and for saving souls,
All propagated with the best intentions.”
—George Gordon Noel Byron (1788–1824)
“As for the dispute about solitude and society, any comparison is impertinent. It is an idling down on the plane at the base of a mountain, instead of climbing steadily to its top.”
—Henry David Thoreau (1817–1862)
“Man is all symmetrie,
Full of proportions, one limbe to another,”
—George Herbert (1593–1633)
“A party of order or stability, and a party of progress or reform, are both necessary elements of a healthy state of political life.”
—John Stuart Mill (1806–1873)