Pratt-whitney Canada Corp

Stephen Phillips

Kenneth D Parkman

Bhawan Bhai Patel

Eduardo David Hawie

Lorin Markarian

Honza Stastny

Parthasarathy Sampath

John Greer

Yvan Schraenen

Carol Desjardins

Eduardo Hawie

Oleg Morenko

Pierrot Duchesne

A combustor liner for a gas turbine engine including first and second annular liner portions engaged to one another with an interference fit. The first liner portion includes at least one anti-rotation feature extending therefrom and engaging the second liner portion and having a threaded hole defined therethrough at least substantially perpendicularly to an adjacent radially extending surface of the second liner portion for threadingly receiving a pushing tool for pushing against that surface.

Combustor liner with integrated anti-rotation and removal feature

A combustor heat shield comprises a heat shield member defining at least one opening for receiving a fuel nozzle. A louver is received in the opening. The louver has a flow diverting portion extending radially outwardly from the opening for directing air along the hot side of the heat shield member.

Method for manufacturing a combustor heat shield

A floating collar assembly is provided comprising a substantially flat floating collar trapped between a heat shield and a dome panel of the combustor. Axial engagement between the floating collar and the fuel nozzle is maintained via a nozzle cap mounted over the fuel nozzle tip.

Interface between a combustor and fuel nozzle

A combustor liner including a dome section having a positioning hole defined at a first radial distance and sized to receive a first heat shield fastener to at least substantially prevent radial and circumferential motion of the first fastener, a circumferential slot sized to receive a second heat shield fastener to at least substantially prevent radial motion of the second fastener while allowing limited circumferential motion of the second fastener, and a clearance hole defined at a second radial distance and sized to receive a third heat shield fastener to allow limited radial and circumferential motion of the third fastener.

Combustor liner with improved heat shield retention

Combustor heat shield

A gas turbine engine combustor having a dome heat shield includes a cooling scheme having a plurality of impingement cooling holes extending through the combustor and a plurality of adjacent ejector holes for directing cooling air past the heat shield lips of the dome heat shields. The impingement and ejector holes are preferably staggered to reduce interaction therebetween.

Combustor dome panel heat shield cooling

A combustor heat shield has a body with heat exchange promoting protuberances extending from a back face thereof. The density of protuberances is less in hot spot regions than in other heat shield regions which require less cooling.

Combustor heat shield with variable cooling

Impingement hole patterns are provided in a combustor dome panel to provide efficient cooling of a combustor dome heat shield. The impingement holes are substantially aligned or located above partial height protuberances provided on the back face of the heat shield.

Growing community of inventors

Etobicoke, Canada

Stephen Phillips