Reverse core engine with thrust reverser

Patent metadata

Field	Value
Publication number	US-9719465-B2
Application number	US-201414774896-A
Country	US
Kind code	B2
Filing date	Mar 12, 2014
Priority date	Mar 14, 2013
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

An engine system has a gas generator, a bi-fi wall surrounding at least a portion of the gas generator, a casing surrounding a fan, and the casing having first and second thrust reverser doors which in a deployed position abut each other and the bi-fi wall.

First claim

What is claimed is:

1. An engine system comprising:
a gas generator;
a bi-fi wall surrounding at least a portion of said gas generator;
a casing surrounding a fan; and
said casing having first and second thrust reverser doors which in a deployed position abut each other and said bi-fi wall, wherein each of said first and second thrust reverser doors has an asymmetrically contoured rear edge to minimize leaks between said first and second thrust reverser doors and said bi-fi wall when in said deployed position.

2. The engine system according to claim 1 , wherein said gas generator has a reverse engine core.

3. The engine system of claim 1 , further comprising said casing having an arcuate shape and each of said first and second thrust reverser doors having a curved shape to conform to said arcuate shape of said casing.

4. The engine system of claim 3 , wherein each of said first and second thrust reverser doors forms a portion of said casing when in a stowed position.

5. The engine system of claim 1 , wherein said first and second thrust reverser doors in a deployed position abut each other along an inner edge and are spaced from each other along an outer edge so as to abut the bi-fi wall.

6. The engine system of claim 1 , further comprising at least one aerodynamic fairing and said aerodynamic fairing housing an intake for supplying air to said gas generator.

7. The engine system of claim 6 , wherein said intake is an intake which provides free stream air to said gas generator.

8. An aircraft comprising:
a fuselage and a tail section;
an engine system comprising at least one casing housing a fan and a free turbine and at least one gas generator for supplying a fluid to drive said free turbine and said fan;
a bi-fi wall housing at least a portion of said at least one gas generator; and
said casing having first and second thrust reverser doors which in a deployed position abut each other and said bi-fi wall, wherein each of said first and second thrust reverser doors has an asymmetrically contoured rear edge to minimize leaks between said first and second thrust reverser doors and said bi-fi wall when in said deployed position.

9. The aircraft of claim 8 , wherein said at least one casing has an arcuate shape and each of said first and second thrust reverser doors has a curved shape to conform to said arcuate shape of said casing.

10. The aircraft of claim 9 , wherein each of said first and second thrust reverser doors forms a portion of said at least one casing when in a stowed position.

11. The aircraft of claim 8 , wherein said first and second thrust reverser doors in a deployed position abut each other along an inner edge and are spaced from each other along an outer edge so as to abut the bi-fi wall.

12. The aircraft of claim 8 , further comprising at least one aerodynamic fairing located at said tail section.

13. The aircraft of claim 12 , further comprising said at least one aerodynamic fairing housing an intake for supplying air to said at least one gas generator.

14. The aircraft of claim 13 , wherein said intake is an intake which provides free stream air to said at least one gas generator.

15. The aircraft of claim 8 , further comprising said fuselage having at least one inlet channel for supplying free stream air to said fan.

16. An engine system comprising:
a gas generator;
a bi-fi wall surrounding at least a portion of said gas generator;
a casing surrounding a fan; and
said casing having first and second thrust reverser doors which in a deployed position abut each other and said bi-fi wall.

Assignees

• United Technologies Corp

Inventors

• Suciu Gabriel L
• Chandler Jesse M

Classifications

• F02K1/605

  the aft end of the engine cowling being movable to uncover openings for the reversed flow · CPC title

• F02C3/10

  with another turbine driving an output shaft but not driving the compressor · CPC title

• F02K3/00

  Plants including a gas turbine driving a compressor or a ducted fan · CPC title

• B64D33/04

  of exhaust outlets or jet pipes · CPC title

• F02K1/70 Primary

  using thrust reverser flaps or doors mounted on the fan housing · CPC title