Actuating mechanism for measuring exhaust temperature field of turbofan engine with small bypass ratio

A turbofan engine, exhaust temperature technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve problems such as blockage, small bypass ratio turbofan engine exhaust temperature field circumferential unevenness, etc., to achieve horizontal Small cross-sectional area, guaranteed efficiency and quality

Active Publication Date: 2022-03-01
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of this application is to provide an actuator for measuring the exhaust temperature field of a turbofan engine with a small bypass ratio, so as to solve the problem that

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  • Actuating mechanism for measuring exhaust temperature field of turbofan engine with small bypass ratio
  • Actuating mechanism for measuring exhaust temperature field of turbofan engine with small bypass ratio
  • Actuating mechanism for measuring exhaust temperature field of turbofan engine with small bypass ratio

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Embodiment Construction

[0031] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application.

[0032] An actuator for measuring the exhaust temperature field of a turbofan engine with a small bypass ratio is installed on the engine. The engine is provided with a central cone coaxially arranged with the center line of the engine. The outer side of the central cone is used for the discharge of high-temperature exhaust gas. The circumferential outside of the central cone forms a flow field.

[0033] By setting the power device, one or a small number of measuring devices at several measuring points can be driven to rotate along the direction of the centerline of the engine, so that the temperature at various positions in the flow field can be effectively measured to form a temperature field without conside...

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Abstract

The invention relates to the technical field of aero-engine measurement, in particular to an executing mechanism for measuring an exhaust temperature field of a small-bypass-ratio turbofan engine, which is characterized in that a supporting casing is arranged, a connecting hole is formed in a central cone, and a supporting cylinder is arranged on the supporting casing, so that an external power transmission channel is formed; a power device and a vertical transmission device are arranged to transmit power into a center cone, a stator mechanism and a rotor structure are arranged in the center cone, the stator mechanism is connected with a supporting cylinder, the rotor mechanism and the stator mechanism are in running fit so as to be supported by the stator mechanism, and a gap is formed between the center cone and an engine turbine. The testing device extends to the outer side of the central cone from the gap and is driven by the power device to rotate along the central line of the engine, so that the temperature of each position of a flow field can be detected, a perfect temperature field is formed, the occupied cross sectional area of a flow channel is small, the flow field cannot be blocked, and the working condition cannot be changed; and the efficiency and the quality of temperature measurement are ensured.

Description

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Claims

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Application Information

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Owner AECC SHENYANG ENGINE RES INST
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