WO1985001994A1

WO1985001994A1 - Hydromagnetic pressurization system

Info

Publication number: WO1985001994A1
Application number: PCT/BR1984/000006
Authority: WO
Inventors: José de FREITAS KERR PINHEIRO
Original assignee: Freitas Kerr Pinheiro Jose De
Priority date: 1983-11-01
Filing date: 1984-11-01
Publication date: 1985-05-09
Also published as: EP0160055A1; BR8306019A

Abstract

Pressurization system to be adapted to a hydraulic system, by placing a by-pass adapted to the system, a water pump and a retention valve with a conical seat. In the by-pass, a magnetic actuator formed by a permanent magnet placed inside a pipe, with its movement limited by non-magnetic pins and by a reed-relay ampoule positioned externally to the area of movement of the permanent magnet is adapted. As the magnet is dragged along by the flow of liquid, the reed-relay is put into action, which puts an electro-magnetic contact into action, which, in its turn, switches on the water pump and so maintains the system adequately pressurized.

Description

HYDROMAGNETIC PRESSURIZATION SYSTEM

This invention refers to a hydromagnetic pressurization system which has the following advantages over the conventional: it has no pressure accumulator; should there be lack of water in the circuit it will he disconnet automatically; when the water returns to the circuit, the system will he ready to work without need of hleeding; and other advantages which will be clear from the text. In the drawings which are enclosed with this report, fig. 1, shows a schematic view of the system in accordance with the invention: fig. 2 shows a detail of device (3) of fig. 1: fig. 3 shows how to make the electric connection of the system. As can he seen in the drawings, the system is composed of a water pump (1) whose discharge has a " T " type connection in the horizontal position (2), of the same diameter as the bypass. After this " T " there is a retention valve with a conical seat (7), hefore another " T " type connection (8) exactly the same as the previous one. Between the two " T " type connections a by-pass is formed with pipes and connections made of a material which is not responsive to the action of the magnetic field. A permanent magnet (3c), cilindrical or tubular, with its movement limited oy two pins (3d,3e) made of a material that is not responsive to the action of the magnetic field, is placed in the first pipe that forms this by-pass. Externally, in the same position as the magnet is placed in the pipe, there is a reed-relay ampoule (3f) whose contacts are connected to an electro-magnetic contact switches the water pump motor on and off . This permanent magnet, together with the reed-relay form the device shown in detail in fig. 2, which may he called the magnetic actuator (3). Thus, when any of the registers connected to the sytsem is opened, the water meets the partial obstruction of the retention valve and goes through the by-pass, taking with it the permanent magnet until its upper limit, which is delimited by the non-magnetic pin, where due to its magnetic field, it puts the reed-relay ampoule into action, which in its turn switches on the bobbin of the electro-magnetic contact which switches on the water pump. As long as there is a flow of water in the hydraulic circuit connected to the system, in one or more registers, the pump will go on working and will only switches off when all registers are closed, preventing the flow through the by-pass and consequently allowing the permanent magnet to fall by gravity until its lower limit. If a tubular magnet is used, the section of free passage will determine with which outlet the pump will be switched on.

Claims

CLAIMS.

1. A " hydromagnetic pressurization system " to be adapted to a hydraulic system, characterized by the fact of being formed by a by-pass adapted to the piping of the hydraulic system together with a water pump to maintain the pressure of the system.

2. A " hydromagnetic pressurization system " in accordance with claim 1, characterized by the fact that the above-mentioned by-pass is formed by pipes and connections made of a material that is not responsive to the action of the magnetic field and that a magnetic actuator is placed in the first pipe that forms the by-pass.

3. A " hydromagnetic pressurization system " in accordance with claim 1, characterized by the fact that the above-mentioned magnetic actuator is formed by placing a permanent magnet inside the pipe, with its movement limited between the two ends by non-magnetic pins. Extemally to this area of the pipe, that is, to the position of the permanent magnet, a reed-relay ampoule whose contacts are connected to an electro-magnetic contact that switches the above-mentioned water pump on and off, is placed.

4. A " hydromagnetic pressurization system " in accordance with claim 1, characterized by the fact that the permanent magnet can be of cylindical or tubular shape, depending on the desired variation of the outlet of the water pump.

5. A " hydromagnetic pressurization system " in accordance with claim 1, characterized by the fact that a retention valve with a conical seat is adapted to the hydraulic system, with the aim of partially obstructing the flow of liquid in the piping, causing a deviation of the liquid to the by-pass, so that thepermanent magnet is dragged to a position that will switch on the water pump by neans of the reed-relay.