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Bootstrap hydraulic reservoir

A storage and hydraulic accumulator technology, applied in the direction of machines/engines, accumulator devices, actuator accumulators, etc., can solve the problem of increasing the complexity of aircraft weight, expensive hydraulic accumulator aircraft, and increasing hydraulic fluid Issues such as apparent weight and/or complexity of the system

Pending Publication Date: 2020-06-02
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, hydraulic accumulators add significant weight and / or complexity to the hydraulic fluid system and thus the aircraft
The added weight of the hydraulic accumulators can be particularly costly to the efficiency of the aircraft when considering that each redundant hydraulic fluid system of the aircraft is provided with a dedicated hydraulic accumulator, making the weight of a single hydraulic accumulator Weight loss multiplied by the number of redundant systems

Method used

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  • Bootstrap hydraulic reservoir
  • Bootstrap hydraulic reservoir
  • Bootstrap hydraulic reservoir

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Embodiment Construction

[0014] The foregoing summary, as well as the following detailed description of certain embodiments, will be better understood when read in conjunction with the accompanying drawings. As used herein, an element or step recited in the singular and preceded by the word "a" or "an" should be understood as not necessarily excluding a plurality of elements or steps. Furthermore, references to "one embodiment" are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Furthermore, unless expressly stated to the contrary, embodiments that "include" or "have" one or more elements having a particular attribute may include additional elements that do not have that attribute.

[0015] While various spatial and directional terms such as "top," "bottom," "upper," "lower," "vertical," etc. are used to describe embodiments of the present disclosure, it should be understood that these terms are only used relative to the a...

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Abstract

A bootstrap hydraulic reservoir includes a bootstrap chamber to hold hydraulic fluid, a piston chamber fluidly connected to a pressure line of the hydraulic fluid system, a piston having a bootstrap end portion held within the bootstrap chamber and a pressure end portion held within the piston chamber, and a hydraulic accumulator fluidly connected to the pressure line of the hydraulic fluid system. The hydraulic accumulator accumulates pressurized hydraulic fluid from the pressure line. The bootstrap hydraulic reservoir also includes a valve fluidly connected to the pressure line of the hydraulic fluid system between the hydraulic accumulator and an outlet of a pump of the hydraulic fluid system. The valve includes an actuator selectively moves the valve to an open position when the pressure line of the hydraulic fluid system is de-pressurized.

Description

Background technique [0001] Many aircraft include hydraulic fluid systems for powering the aircraft's various actuators. The hydraulic fluid system provides a convenient form of condensed power that is easily distributed throughout the aircraft. Redundant hydraulic fluid systems are also typically provided for powering actuators that control elements such as ailerons, elevators, rudders, leading edge slats, trailing edge flaps, horizontal stabilizers, spoilers , air brakes, etc. for movable flight control surfaces. It may be useful to have additional and / or backup hydraulic power available during aircraft flight, such as during hydraulic fluid system failures, shutdowns, and the like. At least some known hydraulic fluid systems include hydraulic accumulators to provide stored energy in the event that additional and / or backup hydraulic power is required. For example, the energy stored by the hydraulic accumulator may be used to move the actuator to the displaced position and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B1/02F15B13/02
CPCF15B1/022F15B13/02F15B1/265F15B2211/851F15B2211/8609F15B2211/8633F15B2211/8752F15B2211/8755F15B20/004F15B2211/625F15B2201/205F15B2201/21F15B2201/215F15B2201/3152F15B2201/3153F15B2201/31F15B2211/30505F15B2211/327F15B2211/20538B64C13/36F04B11/0008B64D41/00Y02T50/40F15B1/26F15B1/04F15B11/006F15B13/021F15B2211/524F15B1/024F15B1/027F15B13/027F15B2201/411F15B2211/205
Inventor 摩根·迈克尔
Owner THE BOEING CO