DE1653392C3 - Electromagnetic piston pump - Google Patents

Description

Embodiment of a pump according to the invention,

F i g. 2 is a plan view of the pump, namely

the right side of the pump according to FIG. 1, and
60 F i g. 3 is a plan view of the pump, rotated by 90 °

The invention relates to an electromagnetic orientation according to FIG. I twisted
table piston pump with a housing, inlet- In the drawings, the pump is made up of two

and outlet inserts, the U-shaped getes communicating on opposite sides of the housing and housing components 10 and 12 shown against each other, the six are directed, a cylindrical sleeve component from 65 sides of a volumetric space for receiving non-magnetic material between the mechanical and the necessary for the pump laß- and outlet inserts is used, one of the electrical parts forms. The housing component 12 Piston component pumping fluid made of magneti- has bent lugs 14, 16, 18 and 20, which

3 "4

Lateral connection to legs 22 and breaker assemblies can be used

24 of the housing component 10 form. The housing thus achieves periodic excitation of the coil 80

Component 10 is made from a magnetic flux! However, this is not the subject of the invention,

tend material produced, z. B. of iron, steel As in F i g. 1, the legs extend

Od. Like., And the metal is relatively thick and S 22 and 24 of the housing component 10 to the right of

results in a rigid, load-bearing housing component. Two of the coil and form a space 84 for receiving

aligned holes 26 and 28, which are preferably an electrical circuit component. The GE-

Have screw threads are in the Schenkein 22 housing 12 has access openings 86 for circuit

and 24 the housing assembly 10 is provided. A ladder on which a fastening of heat radiation

Inlet insert 30 in the form of a hexagonal drain component, e.g., transistor 88, Figure 2

closing member or helical component and 3, allow from the outside. The plastic spu-

screwed into the opening 28. An inner pass-through body 52 has a tapping part 90 which extends

The outlet duct in the installation 30 has sections with it through a slot (not shown) in the leg 22

demdem diameter, which extends in their function. The power terminal 92 is through the

an inlet channel 32, an inlet check valve 15 tapping part 90 is used, which has an electrical insulating

si »z 34, a seat wall 36 for the inlet recirculation results, whereby a corresponding connection

check valve holder and an inlet retaining hole 38 with the electromagnetic coil and / or the

large diameter to accommodate the piston control circuit is achieved.

and represent the case cartridge. An outlet insert in terms of effect, the pump operates in 40, which is also in the form of an end member in a known manner. An excitation of the coil 80 or a hexagonal, screw emitter-shaped generates a flow, as indicated by the arrows, component is in an aligned opening that shortens the working air gap A by screwing the KoI-26 in the leg 22. An inner passage 50 is drawn downwards and at the same time the channel in the insert 40 forms an outlet channel which is compressed 66. A downward 42 and outlet retaining bore 44, the same 15 directional movement, opens the check valve 58 in diameter as the bore 38 and mil and closes the check valve 72, thereby aligning it and a piston and a sleeve working medium to the top of the piston 50 flow senpatrone picks up. The outlet insert 40 may have. When the oscillating or otherwise we have a cylindrical extension 46 protruding into the control circuit housing the current to the coil 80. A thin sleeve member 48 fits 30 breaks and de-energizes the coil, yields the spring 66 its opposite ends in bores 38 and 42, releases stored energy and pushes the piston 50 which represent a sliding guide for the piston 50. for a pump stroke upwards. An upward movement of the sleeve member 48 is made of brass or, by virtue of the piston 50, also sucks in a new work of which the flow non-conductive material. The charge at the inlet check valve 72 extension 46 of the outlet insert thus extends at 35.

far into the housing that has sufficient axial The goal of lower cost is through use Overlap with piston 50 for all pump points of U-shaped fitting housing components of the piston is provided so that one aims that result in a structure that was earlier by A large surface area for the flow transition of a number of separate components with high the approach 46 via the sleeve 48 to the piston 50 ge 40 tolerance has been reached. The U-shaped shape will be is guaranteed (compare the arrows showing the flow- made in a simple way from cheap blanks. Transition path in FIG. 1). The approach 46 the housing component 10 forms the backbone or the also provides an internal retaining hole for the sleeve 48 essential pump component. Additionally points represents, and the outer surface provides an adjustment- this housing component the side pole pieces for the area for the annular plastic bobbin 45 on coil 80, which is normally separated by 52. Provided components are achieved, as well as a flow channel 54 is formed in the piston 50 circumferential flow path. The legs 22 and 24 are and has a frustoconical portion 56 elongated so that it has a space 84 within the on, which forms a seat for the outlet check valve 58 pump housing for control circuit elements. The valve 58 is loosely fitted and 50 ben. Finally, the housing component 10 provides the bedurch a protruding turnstile 60 guided and mounting block for the inlet and outlet inserts represents a loose drop through the cross pin 62.

prevented. A shoulder 64 is supported by a through The housing component completes the cladding

through hole 54 and provides a holding connection, results in a mounting surface for heat-dissipating

suggestion for the spring 66, which has radiating electrical components and a pump

End against inlet check valve holder 68 mounting bracket.

and it is in its position against the bearing. Maintenance is simplified and everyone moves

wall 36 holds. The holder 68 guides the plunger 70 low mechanical pump parts can be used for

of the inlet check valve 72. The inlet reset and / or made accessible for replacement

Check valve spring 74 is placed between retainer 68 and 60 by simply releasing inlet insert 30.

and the check valve 72 was added. One unscrews and is removed. Removing the

electromagnetic power coil 80 is in the coil second insert and a separation of the U-shaped

body 52 arranged. A number of different housing sections make up all electrical elements

borrowed and known solid-state circuits or accessible.

For this purpose 2 sheets of drawings

Claims (3)

Schem material that is arranged in the sleeve component and is displaceable back and forth in it: a spring arrangement, which the piston component in a 1. Direction bias electromagnetic piston pump, an electromagnetic spool Housing, inlet and outlet inserts, the 5 lenbauteil, the konzentnsch m the housing around the on opposite sides of the housing. is arranged and in excited approves and are aligned with one another, one standing acts in such a way that it one the piston Cylindrical sleeve component made of non-magnetic flux that shifts against the spring preload schem material generated between the inlet and outlet inserts and a one-way check valve assembly is used, one the work ion which is assigned to the piston component and the medium pumping piston component made of magneti- it allows fluid to flow through the Kölschem Material that flows in the other direction of movement in the sleeve component. the is ordered and can be moved back and forth in it, piston pumps of the specified type are already some Spring assembly known to the piston member in US Pat. No. 2,768,580. In contrast biased one direction, one electromagnetic Coil component, which is concentric in the table piston pump, which is essential Housing is arranged around the sleeve component and can be produced at a lower cost and, when energized, acts in such a way that operation is possible in a much simpler manner. there is a piston against the spring preload. According to the invention, this is achieved by shifting flow generated, and a one-way ao that the housing has a first and second U-shaped check valve assembly, which has the piston structure housing component, each of which has two opposites is assigned and which makes it possible that overlapping housing walls forming, ineinan-fluid through the piston in the other the matching leg components have an inner ren direction of movement flows, thereby forming the pump chamber that the inlet insert in indicates that the housing protrudes into one as an opening in one of the two «En (10) and a second (12) U-shaped leg of the first housing component is formed, has housing component, each of which has two opposite and that the outlet insert protrudes into an opening, the overlying housing walls forming, one in the other leg of the first housing component has end fitting leg members that is a formed. Form the inner pump chamber that the inlet insert (30) protrudes into an opening which is at least the first or the second one (24) of the two legs of the first U-shaped housing component from one of the magnetic housing component (10) is formed, and that the see flux conductive material made that a the The outlet insert (40) protrudes into an opening which has the flux conductive pole piece in the axial direction and on others Leg (22) of the first. Housing components 35 read out the end faces of the electromagnetic coil (10) is formed. forms. 2. Electromagnetic piston pump according to In a further embodiment of the invention is discussed 1, characterized in that little struck that one of the inlet or outlet one the first (10) or the second (12) U-headset has a cylindrical sleeve which is inserted into the inmige Housing component from a magnetic 4 ° nere pump chamber in the radial direction See flux conductive material made on the exterior of the sleeve component and the piston component the flux-conducting pole piece protrudes in the axial direction, and that an insert component made of flux-guiding and the electromagnetic material is effective on both end faces in such a way that it tables coil forms. the flow in the axial direction and in the radial direction 3. Electromagnetic piston pump according to An 45 to the outside with respect to the piston component for all spoke 2, characterized in that one of the operating positions of the piston component distributed.
Inlet or outlet inserts (30 or 40) a cylindrical sleeve (46) is provided by the proposal according to the invention, the inside of which is a particularly easy and inexpensive to manufacture KoI pump chamber in the radial direction to the outside. from the sleeve component (48) and the piston 50 comparable piston pumps protrudes on a special built-in part (50), and that an insert component can be operated multiple and expediently (40) made of flow-conducting material in this way. is effective that there is the flux in the axial direction. The invention is related below and in the radial direction outward with reference to the drawing on the basis of one embodiment Piston component (SOj for all operating positions 55 explained. It shows gene of the piston component distributed. F i g. 1 is a cross-sectional view of a preferred one