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Andre Julien
Researcher at Pratt & Whitney Canada
Publications - 46
Citations - 430
Andre Julien is an academic researcher from Pratt & Whitney Canada. The author has contributed to research in topics: Internal combustion engine & Turbine. The author has an hindex of 13, co-authored 46 publications receiving 430 citations.
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Patent
Low volumetric compression ratio integrated turbo-compound rotary engine
Andre Julien,Andre Chevrefils +1 more
TL;DR: A compound cycle engine (10) comprises a compressor and a turbine section (14, 18), and at least one cycle topping device (16) providing an energy input to the turbine section.
Patent
Compound engine system with rotary engine
TL;DR: In this paper, a rotary engine with a volumetric compression ratio lower than its volume expansion ratio is defined in the peripheral wall of the rotor in each of the chambers having a volume of more than 5% of the displacement volume of the chamber.
Patent
Auxiliary power unit with excess air recovery
TL;DR: In this article, an auxiliary power unit for an aircraft, having an engine core, a compressor having an outlet in fluid communication with the engine core inlet, and an excess air duct having a first end with the compressor outlet and a second end with a turbine inlet of the turbine section, is discussed.
Patent
Compound engine assembly with bleed air
TL;DR: In this paper, a compound engine assembly for use as an auxiliary power unit for an aircraft and including an engine core with internal combustion engine(s), a compressor having an outlet in fluid communication with the engine core inlet, a bleed conduit in fluid communications with the compressor outlet through a bleed air valve, and a turbine section having an inlet in liquid communication with engine core outlet and configured to compound power with the aircraft core.
Patent
Auxiliary power unit with variable speed ratio
Anthony Jones,Andre Julien,David Menheere,Jean Thomassin,Richard Ullyott,Daniel Van Den Ende +5 more
TL;DR: In this paper, an auxiliary power unit for an aircraft includes a rotary intermittent internal combustion engine drivingly engaged to an engine shaft, a turbine section having an inlet in fluid communication with an outlet of the engine(s), the turbine section including at least one turbine compounded with the engine shaft.