RU2202724C2 - Distributing valve - Google Patents

Abstract

FIELD: rocket and space engineering. SUBSTANCE: invention is designed for filling of hydraulic systems. Proposed distributing valve has housing with branch pipes and rotary distributor. Said disk-like distributor is connected with control handle. Fixed disks are installed at both sides of rotary distributor being pressed to the latter. Each fixed disk has two through holes. Housing consists of two symmetrical halves. Each half of housing encloses said disks and it contains two branch pipes. Rotary distributor is made with one through hole and two blind end face slots. Blind end face slots are arranged for interaction with corresponding holes of fixed disks in contact with rotary distributor. EFFECT: simplified design, reduced hydraulic resistance and mass of distributor valve. 4 dwg

Description

 The invention relates to the field of rocket and space technology, and in particular to a device for refueling hydraulic lines, for example, a spacecraft thermal control system.

 Known distribution valve (USSR AS 630478, class F 16 K 11/04 from 1976), consisting of a housing, a poppet locking member and a control handle.

 A disadvantage of the known control valve is the structural complexity and the need to install two in the system for refueling, that is, on the filling branch and on the drainage.

 A known distribution valve, comprising a housing with nozzles, inside which a rotary distributor is mounted, connected by a shaft to the control handle (RF patent 2154764, C1 class. F 16 K 11/085 from 2000).

 A disadvantage of the known control valve is the structural complexity and significant hydraulic resistance during operation of the hydraulic system, significant weight.

 The objective of the invention is to simplify the design and reduce hydraulic resistance and mass.

 The task is achieved in that in the distribution valve, comprising a housing with nozzles, a rotary distributor connected to the control handle, the rotary distributor is made in the form of a disk, on which both sides there are fixed disks, drawn to it and made each with two through holes, and the body made of two symmetrical halves, each with two nozzles covering the mentioned disks, while the rotary distributor is made with one through hole and two blind end grooves, p placed with the possibility of interaction with the corresponding holes of the fixed disks in contact with it.

 Figure 1 shows a General view of the control valve.

 Figure 2 shows a side view of the distribution valve.

 In FIG. 3 shows the location of the grooves and openings of the rotatable distributor disk relative to the openings of the fixed disks in the "System" position.

 Figure 4 shows the location of the grooves and holes of the rotatable distributor disk relative to the holes of the stationary disk in the "Refueling" position.

 The control valve consists of the left 1 and right 2 halves of the housing 3, symmetrical about the vertical axis. Both halves of the case are tightened by screws 4 and cover the fixed disks 5 and 6. Inside the case 3, a distributor is installed in the form of a rotatable disk 7. All disks 5, 6 and 7 are made of ceramic material and lapped to each other. The fixed disks 5 and 6 are pressed against the rotatable 7 by means of elastic sealing elements 8. The rotatable disk 7 is fixed in a cage 9 provided with a handle 10. External tightness is provided by the sealing elements 11. For fixing the handle 10 in the extreme positions, latches are installed in the form of spring-loaded balls 12, sinking into the recesses 13 on the handle 10. The handle 10 is made in the form of a bent plate overlapping the nuts 14 of the joined pipelines 15 in the "Refueling" position to prevent erroneous undocking of the pipelines 15 p and in the presence of medium pressure system. The through holes 16 and 17 are made in the disks 5 and 6, and the through holes 18 and the blind blind grooves 19 and 20 are made in the 7 disk. 3 branch pipes "Drainage" 22 and "System" 24.

 The distribution valve operates as follows.

 Starting position - the valve is set to the "Refueling" position, before this, plugs are removed from the nozzles 21 and 23 and the pipelines 15 (filling and drainage) are joined. After moving the handle 10 to the “Filling” position, the handle shank 10 closes the nuts 14 and blocks their unscrewing, that is, the uncoupling of the pipelines 15. In this position, the pipe 21 is connected through a blind end groove 20 to the pipe 22, and the pipe 23 is connected through a blind end groove 19 with pipe 24. The system is poured, the working medium is supplied to the system through pipe 21 and is discharged from the system through pipe 23. After pouring and removing air bubbles from the system, the control valve is closed by turning the handle from the position " Refueling "to the" System "position, while the disk 7 by the clip 9 rotates and the hole 18 becomes aligned with the holes 16 in the disks 5 and 6 and the nozzles 22 and 24. The nozzles 21 and 23 are blocked by the disk 7.

 Thus, the proposed design of the distribution valve provides the task - simplifying the design and reducing hydraulic resistance.

Claims (1)

 Distribution valve, comprising a housing with nozzles, a rotary distributor connected to a control handle, characterized in that the rotary distributor is made in the form of a disk, on which both sides are fixed disks, drawn to it and made each with two through holes, and the housing is made of two symmetrical halves, each with two nozzles covering the mentioned disks, while the rotary distributor is made with one through hole and two blind end grooves, placed with the possibility of interaction with the corresponding holes of the fixed disks in contact with it.

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