Passive flow modulation of cooling flow into a cavity

• Main Authors: MIRANDA CARLOS MIGUEL, WIDENER STANLEY KEVIN
• Format: Patent
• Language: Chinese; English
• Published: 08.08.2017
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

The invention relates to passive flow modulation of cooling flow into a cavity. A passive flow modulation device (36) according to an embodiment includes: a temperature sensitive element (54) disposed within a first area (30); a piston (60) coupled to the temperature sensitive element (54), the piston (60) extending through a wall to a second area (44), wherein the first area (30) is at a higher temperature than the second area (44); and a valve arrangement (42) disposed in the second area (44) and actuated by a distal end portion of the piston (60), the valve arrangement (42) tangentially injecting a supply of cooling air (32) through an angled orifice (34) from the second area (44) into the first area (30) in response an increase in temperature in the first area (44). 本发明涉及进入腔中的冷却流的被动流调节。具体而言，种根据实施例的被动流调节装置(36)包括：设置在第区域(30)内的温度敏感元件(54)；联接至温度敏感元件(54)的活塞(60)，活塞(60)延伸穿过壁至第二区域(44)，其中第区域(30)相比第二区域(44)处于较高的温度；以及设置在第二区域(44)中且由活塞(60)的远端部分促动的阀布置(42)，阀布置(42)响应于第区域(44)中的温度的升高将冷却空气(32)的供应从第二区域(44)穿过成角度的孔口(34)切向地喷射到第区域(