IMMERSED CORE FLOW INLET BETWEEN ROTOR BLADE AND STATOR VANE FOR UNDUCTED FAN GAS TURBINE

• Main Authors: BREEZE-STRINGFELLOW ANDREW, CEDAR RICHARD DAVID, DANIEL LAWRENCE TWEEDT, KHALID SYED ARIF, PATRICK JOHN LONNEMAN, WILLIAM JOSEPH BOWDEN, ALEKSANDER PIOTR PASIECZNY
• Format: Patent
• Language: English; Japanese
• Published: 15.12.2016
• Subjects: AEROPLANES; AIR INTAKES FOR JET-PROPULSION PLANTS; AIRCRAFT; AVIATION; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; COSMONAUTICS; GAS-TURBINE PLANTS; HEATING; HELICOPTERS; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To provide an open rotor propulsion system utilizing a single rotating propeller assembly which reduces the complexity of the design and improves propulsive efficiency.SOLUTION: An unducted thrust producing system is provided that can include: a rotating element having an axis of rotation about a central longitudinal axis and comprising a plurality of blades attached to a spinner; a stationary element positioned aft of the rotating element; and an inlet positioned between the rotating element and the stationary element such that the inlet passes radially inward of the stationary element. The rotating element defines an annular valley positioned between a first annular crown and a second annular crown, and the inlet defines an open area positioned aft of the second annular crown.SELECTED DRAWING: Figure 1 【課題】設計の複雑さ及び推進効率が改善された単一の回転プロペラ組立体を利用するオープンロータ推進システムを提供すること。【解決手段】中央長手方向軸線を中心とした回転軸を有し且つスピナに取り付けられた複数のブレードを含む回転要素と、回転要素の後方に位置付けられた固定要素と、固定要素の半径方向内向きに通るように回転要素と固定要素との間に位置付けられた入口とを含むことができるアンダクテッド推力発生システムが提供される。回転要素は、第１の環状クラウンと第２の環状クラウンとの間に位置付けられた環状谷部を定め、入口が、第２の環状クラウンの後方に位置付けられた開放区域を定める。【選択図】 図１