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A Hydraulic Stability Adjustment Device Consisting of Piston Damper and Variable Throttle Nozzle

A technology of adjusting devices and throttling nozzles, which is applied in jet propulsion devices, gas turbine devices, fuel valves of turbine/propulsion devices, etc., and can solve problems such as electromagnetic interference, large output flow fluctuations, and low reliability

Active Publication Date: 2021-09-28
BEIJING HANGKE ENGINE CONTROL SYST SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the fuel adjustment device adopts the direct output flow method, which has a fast response speed, but the output flow fluctuates greatly, that is, the stability is poor; another product uses an electromagnetic control valve for stability adjustment, but it is susceptible to electromagnetic interference and has a reliable lower sex problems

Method used

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  • A Hydraulic Stability Adjustment Device Consisting of Piston Damper and Variable Throttle Nozzle
  • A Hydraulic Stability Adjustment Device Consisting of Piston Damper and Variable Throttle Nozzle
  • A Hydraulic Stability Adjustment Device Consisting of Piston Damper and Variable Throttle Nozzle

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] The features of various aspects of the embodiments of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be pra...

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Abstract

The invention belongs to the technical field of aero-engine fuel accessories, and relates to a hydraulic stability adjustment device composed of a piston damper and a variable throttle nozzle, comprising: a piston housing (1), a spring seat (2), a first damping spring ( 31), second damping spring (32), piston (4), first piston spring seat (51), second piston spring seat (52), adjustable spring seat (7), support (81), screw plug (82), nozzle (10), throttling adjustment nail (11); there are three pipelines outside the piston housing (1), the first pipeline is the oil inlet, and the second pipeline is connected to the nozzle (10) The oil outlet, the third pipeline is connected to the oil inlet of the nozzle (10); the piston housing (1) has oil passages connecting both sides of the piston (4); the throttling adjustment nail (11) is installed on the nozzle (10) Inside: The hydraulic stability adjustment device of the present invention is small in size, simple in structure, high in reliability, and can effectively adjust hydraulic stability.

Description

technical field [0001] The invention belongs to the field of aero-engine fuel accessories, and relates to an aero-engine fuel control technology, in particular to a hydraulic stability adjustment device composed of a piston damper and a variable throttling nozzle. Background technique [0002] The fuel adjustment device controls the fuel output by sensing typical operating parameters such as speed and pressure, and the output flow will fluctuate instantaneously with the internal adjustment of the device. At present, the fuel adjustment device adopts the direct output flow method, which has a fast response speed, but the output flow fluctuates greatly, that is, the stability is poor; another product uses an electromagnetic control valve for stability adjustment, but it is susceptible to electromagnetic interference and has a reliable lesser problem. Contents of the invention [0003] The object of the present invention is to propose a hydraulic stability adjustment device ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02C7/232F02C9/32F02C7/22F02C7/00
CPCF02C7/00F02C7/22F02C7/232F02C9/32
Inventor 朱岩庞泽文喻阳
Owner BEIJING HANGKE ENGINE CONTROL SYST SCI & TECH
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