RU2686585C1 - Metal air diffuser - Google Patents

Abstract

FIELD: ventilation.

SUBSTANCE: invention relates to air conditioning systems of vehicles. Air distributor comprises a valve installed in the air distributor housing, which is installed on the structure and communicates with the air supply system. Valve contains a rotary nozzle in the form of a bushing with installed inside the rotary flap located inside the valve body, which is made in the form of a truncated sphere installed inside the spherical surface of the housing of the air distributor. Rotary flap is equipped with inclined carrier interacting with fixed catcher installed in valve body. Truncated sphere is made thin-walled with thickening on upper and lower faces, in which there are two mounting holes for installation of nozzle, made in form of sleeve with collar on outer surface. Spherical surface of housing is made to its entire height. In the end part of the shutter there pressed are axles providing its installation and rotation in bushing holes, and on the rear part in the spherical surface of the valve body cylindrical grooves are made with width equal to the housing width.

EFFECT: improved operating characteristics, reduced labor intensity at reduction of weight.

1 cl, 4 dwg

Description

Technical field

The invention relates to technological processes, more specifically to the air conditioning systems of vehicles, namely to air-jet distributors of air and is a terminal device for supplying and controlling the flow of air from the air conditioning system directly into the area of the passenger or crew member.

It can be used to simplify the design, reduce weight and improve the performance of air distributors.

The level of technology

Known air distributor according to patent RU 2023207 B64D 13/00, 1999 containing a partition separating the channels through which the supply duct is connected to the outlet, and a jet control device including a pressure boosting duct connected through a partition wall with a slotted nozzle that is located on the partition from one of the channels and oriented at an angle to the axis of the inlet duct; the partition on the side of the inlet duct is made in the form of a plate and installed with the possibility of transverse spaces and changes in this ratio of flow areas of the channels. According to the authors of the patent, this design allows to improve the performance of the air distributor by improving the accuracy of air distribution. However, this design has a low reliability and high noise level.

The air exhaust device of US Pat. No. 6887147 B64D 13/00 2005 contains a valve located in the housing, an air inlet and an air outlet. The air outlet device further comprises a holding member for rotating the valve around a longitudinal axis passing through the air inlet and air outlet and the valve body coaxially. When the housing rotates, the valve can be displaced in the housing between a closed position to block the air outlet and the maximum open position for maximum opening of the air outlet.

This design contains many elements, has a high mass, has low reliability, manufacturing complexity and short service life.

The closest technical solution, selected as a prototype, is the air distributor according to patent US 6402610 B64D 13/00 2002, according to which the air distributor consists of the air distributor case and the valve installed by its case in the air distributor case. The air distributor is presented in Figure 1 (see Appendix). The air distributor case is hollow, and inside the air distributor case there is a seat with an internal spherical surface two-thirds the height of the valve body. On the inner spherical surface of the casing of the air distributor in its middle part there is a groove for the installation of a damper and a seal.

The air distributor is mounted on the structure with the help of a flange with mounting holes on the structure.

The valve body is made in the form of a sphere, truncated by two parallel planes forming the upper and lower faces. Inside the valve body there is a seat with a cylindrical surface.

The valve includes a tubular nozzle, made in the form of a sleeve, and inside the nozzle, a damper is installed, made in the form of a flat disc with a protrusion in the center, through which a through hole is made at an angle of 36 °. The carrier is installed in the passage opening, made in the form of a rod. The drove serves to move the flap between one or more open and closed positions.

Inside the case, a safety device is installed, made in the form of a washer and interacting with the carrier, while the safety device itself is made in the form of a cut ring with a sector with the projections bent out of the ring plane.

On opposite sides of the valve at a given angle relative to the bore, there are two movable axial pins, and in the middle part of the nozzle, two diametrically opposite through holes are made on its inner surface to fix the above axial pins. The pins fix the flap in the nozzle in the closed and open positions. The flap may be made of treated aluminum or molded plastic. The nozzle in the axial direction is fixed in the housing on one side with a collar, and on the other side, a wave (spring) washer is pressed against the housing, which has the shape of a ring in plan and the shape of a wave when viewed from the side. In the upper part of the nozzle on its outer surface there is a groove for mounting a cylindrical seal. The sealant may be made of polymerized tetrafluoroethylene (Teflon) or an equivalent material.

In the center of the inner surface of the valve body there are two diametrically opposed cylindrical grooves for fixing the axial pins.

An o-ring seal is put on the spherical valve body - a damper made of felt, which with the help of a large number of angular springs holds the valve body in the air distributor body.

The valve body and nozzle can be made from treated aluminum or molded plastic.

The air distributor is mounted on the structure of the aircraft and the internal cavity of the air distributor housing communicates with the air source.

The operation of the device is as follows - by turning the nozzle relative to the valve body. When the air spreader is in its working position, the damper is turned parallel to the air flow and the exhaust port is fully opened. In this case, the carrier in the flap, controlled by a safety gear, rotates the flap relative to the inner surface of the nozzle, while the seal presses the axial pins in the grooves. The change in air flow is achieved by turning the damper inside the nozzle.

Summary of Invention

The objective of this proposed invention is to design an air diffuser having improved performance characteristics, reduced manufacturing labor while reducing the mass of the product.

This goal is achieved by the fact that in the air distributor, which contains a valve installed in the air distributor housing, installed on the structure and communicating with the air supply system, the valve contains a rotating nozzle in the form of a sleeve with a rotary valve installed inside, located inside the valve body, in the form of a truncated sphere installed inside the spherical surface of the body, the rotary valve is equipped with an inclined carrier interacting with a fixed catcher; in the valve body, and the nozzle in the axial direction is fixed in the valve body with a spring washer, so that the truncated sphere is made thin-walled with bulges on the upper and lower faces, in which there are two cylindrical bores for mounting the nozzle, made in the form of a sleeve with a collar on the surface, and the spherical surface of the body is made to its entire height; in this case, in the end part of the flap, axles are pressed in to ensure its installation and rotation in the holes of the sleeve, and on the rear part to the spherical overhnosti valve body formed grooves cylindrical shape with a width equal to the width of the housing.

In addition, the safety device is a washer in the form of a cut spring ring with a sector with an eye bent out of the plane of the ring, provided with a slot.

Moreover, the valve body is provided with a leaf spring, which is a metal strip mounted on its outer surface.

List of drawings

The invention is illustrated by drawings, in which:

FIG. 1. - General view of the visometry air diffuser;

FIG. 2. - Top view of the air diffuser;

FIG. 3 - Front view of the air diffuser;

FIG. 4 - Section AA of Figure 2;

The implementation of the invention

The invention is implemented as follows:

The air spreader consists of the air spreader body and a valve installed in the air spreader body, and the air spreader body is installed on the structure and communicates with the air supply system. The air distributor case is made in the form of a cylinder, inside of which there is a seat with an internal spherical surface, a groove for the installation of a damper and a leaf spring. The air diffuser housing is mounted on the structure with the help of a flange fitted with ears with holes for mounting on the structure. The damper is made of felt and is designed to seal the body relative to the valve.

The valve consists of a housing and a rotary nozzle with a rotary valve installed inside. The body is made in the form of a thin-walled truncated sphere with nubs on the upper and lower faces, in which two cylindrical mounting holes are made to install a nozzle made in the form of a sleeve with a collar on the outer surface, and on the back of the valve body there are cylindrical grooves width equal to the width of the housing, and provided with a plate spring, which is a metal strip mounted on its outer surface. The nozzle in the axial direction is fixed in the valve body with a spring washer having the shape of a ring in plan and a wave shape when viewed from the side.

The rotary valve is made in the form of a plate of a round shape and is equipped with an inclined carrier, and in the end part of the valve the axles are pressed in to ensure its installation and rotation in the holes of the sleeve. The carrier is made in the form of a rod pressed into the valve, and interacts with a fixed catcher installed in the valve body. The safety device is a washer in the form of a cut spring ring with a sector with an eye bent out of the plane of the ring, provided with a slot.

A specific example of the implementation of the air distributor in accordance with the invention is shown in Figures 1-4.

The air distributor consists of the case of the air distributor 1 (Fig. 1) and the valve 2 (Fig. 4) installed in the case of the air distributor 1 (Fig. 1). The housing of the air distributor 1 (Fig. 1) is made in the form of a cylinder, inside of which there is a seat with an internal spherical surface, a groove for the installation of a damper 3 (Fig. 2, Fig. 4) and a leaf spring 4 (Fig. 1, Fig. 3, Fig. 4). The housing of the air spreader 1 (Fig. 1) is mounted on the structure with the help of a flange 5 (Fig. 1, Fig. 4, Fig. 2) equipped with lugs with mounting holes on the structure.

The diameter of the outer surface of the housing corresponds to the diameter of the connected pipeline from the air supply system. The damper 3 (Fig. 2, Fig. 4) is made of felt and is designed to seal the body relative to the valve. On the rear part of the housing 1 there are grooves 17 (Fig. 1, Fig. 4, Fig. 2) of cylindrical shape with a width equal to the width of the valve 2 (Fig. 4), ensuring the introduction of valve 2 (Fig. 4) into the housing of the air spreader 1. When turning the valve 2 perpendicular to the support surface of the air distributor housing 1, after inserting the valve 2 into the housing 1, it turns 90 ° and is fixed in this position.

The valve 2 (Fig. 4) consists of a housing 6, inside which a nozzle 7 is installed (Fig. 1, Fig. 3) with a rotary valve 8 (Fig. 1, Fig 2, Fig. 4), a safety gear 9 (Fig. 2, Fig. 4), the leaf spring 4 (and the spring washer 10. Case 6 (Fig. 1) is made in the form of a truncated thin-walled sphere with bulges on the upper and lower edges. Case 6 (Fig. 1) is equipped with a plate spring 4 (Fig. 1 , Fig. 4), which is a metal strip mounted on the outer surface of the valve body 6. In the rear part of the body 6, a groove 11 is made inside (Fig. 4) for spring installation washers 10 (Fig. 1, Fig. 4) and the safety device 9 (Fig. 2, Fig. 4). Inside the housing 6 a swiveling nozzle 7 (Fig. 1, Fig. 3) is installed, made in the form of a sleeve with a shoulder 12 ( Fig. 4) on the outer surface. The nozzle 7 (Fig. 1, Fig. 3) is axially fixed in the housing on one side by a collar 12 (Fig. 4), and on the other side is pressed against the housing by a spring washer 10 (Fig. 1 ). The lower part of the nozzle 7 (Fig. 1, Fig. 3) exits the valve body and is provided with a corrugation 15 (Fig. 4) on the outer surface. The spring washer 10 (Fig. 1, Fig. 4) is made of spring steel and has the shape of a ring in plan and a wave shape when viewed from the side.

Inside the nozzle 7 (Fig. 1, Fig. 3), a rotary valve 8 (Fig. 1, Fig. 3, Fig. 4) is installed, equipped with an inclined carrier 13 (Fig. 1, Fig. 2, Fig. 4) interacting with fixed catcher 9 (Fig. 2, Fig. 4). The carrier 13 (Fig. 1, Fig. 2, Fig. 4) is made in the form of a rod pressed into the valve 8 at an angle of 39 ° to the plane of the valve and 45 ° to the axis of rotation of the valve. The safety device 9 is a washer in the form of a cut spring ring with a sector with an eyelet 16 bent out of the plane of the ring (Fig. 1, Fig. 2, Fig. 3), provided with a slit. In the end part of the valve 8 (Fig. 1, Fig. 3, Fig. 4), the axles 14 (Fig. 4) are pressed in, ensuring its installation and rotation in the holes of the sleeve.

The operation of the air spreader is carried out as follows - the air spreader should be fixed on the aircraft structure, the air duct should be connected to it with the help of a clip. To adjust the direction of air flow, the operator must manually rotate the nozzle 7 (Fig. 1, Fig. 3) relative to the valve body 6, holding the corrugated part of the nozzle 15. At the same time, drove 13 (Fig. 1, Fig. 2, Fig. 4) in the flap 8 (Fig. 1, Fig. 3, Fig. 4), resting on the eye 16 of the safety device 9 (Fig. 2, Fig. 4) causes the flap 8 to turn (Fig. 1, Fig. 3, Fig. 4) relative to the inner surface of the nozzle 7 (Fig. 1, Fig. 3). The change in air flow is achieved by turning the valve 8 inside the nozzle 7 (Fig. 1, Fig. 3), and the change in the direction of air flow is carried out by tilting this nozzle relative to the housing.

The air distributor is made of aluminum-AMg5. This material provides a small weight of the product, has a low price, because of its properties, it is quite easily processed and has a long service life.

The air diffuser made in accordance with the invention has fewer parts as compared to the prototype, the valve has a large contact surface area with the housing, which improves the performance of the air diffuser, less noise and less pollution during operation.

ATTACHMENT

The known air spreader is characterized by a large number of parts, design complexity and manufacturing complexity, which leads to an increase in the cost and weight of the structure, moreover, low performance characteristics, namely between rotating construction elements, dust is clogged with dirt, which leads to scratches on these elements and their quick wear (worn and worn damper).

Claims (2)

1. An aluminum air spreader containing a valve mounted in the air spreader body, mounted on the structure and communicating with the air supply system, wherein the valve includes a rotary nozzle in the form of a sleeve with a rotary valve installed inside and placed inside the valve body, made in the shape of a truncated sphere, installed inside the spherical surface of the housing, the rotary valve is equipped with an inclined carrier interacting with a fixed catcher installed in the valve body, and axially fixed in the valve body with a spring washer, characterized in that the truncated sphere is made thin-walled with bulges on the upper and lower faces, in which two cylindrical mounting holes are made to install a nozzle, made in the form of a sleeve with a collar on the outer surface, while in the end part of the valve, axles are pressed in to ensure its installation and rotation in the holes of the sleeve, and on the back part in the spherical surface of the valve body there are grooves of cylindrical shape with a width, p Avno width of the shell. 2. Aluminum air spreader according to claim 1, characterized in that the valve body is provided with a leaf spring, which is a metal strip mounted on its outer surface.

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