US4783050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic valve for liquid and gaseous media
Assignee: Asys GmbH
•
Filing: 1987-06-19
•
Granted: 1988-11-08
•
Expires: 2007-06-19
Abstract
Abstract A magnetic valve for liquid and gaseous media having a flatbody slide valve which can slide with the aid of electromagnetic force between two planar-parallel slide surfaces. The slide surfaces include control openings. The slide valve comprises a core polarized by at least one stationary permanent magnet with at least one opening in the core being perpendicular to the planar-parallel slide surfaces. A pressure chamber is formed in the core with ends at both sides of the chamber. A cover surface borders an end wall of the chamber. At least two pair of corresponding control openings are inversely disposed. A connection bore having an opening at either end is in fluid communication with the pressure chamber. The edges of the bore openings serve to form control edges for the at least two pairs of control openings.
Inventors
- 👤 Klaus Hugler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:55
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/08; F16K31/082; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/86879
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
138 words
Magnetic valve for liquid and gaseous media having a flat-body slide valve which can slide with the aid of electromagnetic forces between two planar-parallel slide surfaces which include slide surface control openings, said flat-body slide valve comprising a core polarized by at least one stationary permanent magnet; at least one opening in said core perpendicular to said planar-parallel slide surface; a pressure chamber formed in said core and having an end wall at both sides thereof; a cover surface bordering an end wall of said pressure chamber; at least two pairs of inversely corresponding control openings; and at least one connection bore having an opening at either end thereof and in fluid communication with said pressure chamber, the edges of said connection bore openings serving to form control edges for said at least two pairs of control openings.
Claim 2
Dependent Claim
138 words
Magnetic valve for liquid and gaseous media having a flat-body slide valve which can slide with the aid of electromagnetic forces between two planar-parallel slide surfaces which include slide surface control openings, said flat-body slide valve comprising a core polarized by at least one stationary permanent magnet; at least one opening in said core perpendicular to said planar-parallel slide surface; a pressure chamber formed in said core and having an end wall at both sides thereof; a cover surface bordering an end wall of said pressure chamber; at least two pairs of inversely corresponding control openings; and at least one connection bore having an opening at either end thereof and in fluid communication with said pressure chamber, the edges of said connection bore openings serving to form control edges for said at least two pairs of control openings.
Claim 3
Dependent Claim
18 words
Magnetic valve according to claim 1, wherein the slide (3;103) has the shape of a tubular flat-body slide.
Claim 4
Dependent Claim
35 words
Magnetic valve according to claim 1, wherein the slide (3;103) further includes several elements, one of which is a tubular throttle ring (23;123), the planar surfaces of which are the sliding surfaces for the slide.
Claim 5
Dependent Claim
34 words
Magnetic valve according to claim 1, wherein both sliding surfaces (2;102) are provided with slide surface control openings and both frontal surfaces of the flat-body slide (3;103) have closure paths for these control openings.
Claim 6
Dependent Claim
34 words
Magnetic valve according to claim 4, wherein each frontal surface of the flat-body slide (3;103) is capable of closing at least two control openings (19) which correspond to each other in an inverse manner.
Claim 7
Dependent Claim
34 words
Magnetic valve according to claim 5, wherein the control opening so (19) in the two slide surfaces (2; 102) provide equal hydraulic forces on the two frontal sides of the flat-body slide (3; 103).
Claim 8
Dependent Claim
17 words
Magnetic valve according to claim 6, wherein both of the valve plates (1; 101) are structurally identical.
Claim 9
Dependent Claim
43 words
Magnetic valve according to claim 1, further including two valve plates (1; 101) having bushings (16,17) which are inserted in support plates (15) and at least partially form one or the other of the slide surfaces (2;102) with one of their frontal surfaces.
Claim 10
Dependent Claim
21 words
Magnetic valve according to claim 2, wherein the tubular flat-body slide (3;103) has four edges, all of which form control edges.
Claim 11
Dependent Claim
37 words
Magnetic valve according to claim 4, wherein the axial length of the tubular flat-body slide (3;103) is equal to the height of spacing elements (4) that hold the two valve plate surfaces (2; 102) in planar-parallel positions.
Claim 12
Dependent Claim
89 words
Magnetic valve according to claim 4, further including two cylindrical slotted bushings (16) arranged coaxially in respective cylindrical bores in one of the other of the valve plates (1; 101), one frontal surface of which aligns in a planar-parallel manner with the slide surface (2; 102) of the valve plate of which it is a part and having a wall with at least one slot (19) open toward the frontal surface that aligns with the slide surface to form a control opening into which respective connecting channels (18) open.
Claim 13
Dependent Claim
31 words
Magnetic valve according to claim 11, wherein the inside diameter of the slotted bushings (16) is equal to the diameter of recessed area edges (32) of the flat-body slide (3; 103).
Claim 14
Dependent Claim
30 words
Magnetic valve according to claim 11, wherein the inside diameter of the slotted bushings (16) is equal to the diameter of recessed area edges (32) of the flat-body slide (3;103).
Claim 15
Dependent Claim
43 words
Magnetic valve according to claim 11, further including a tubular throttle ring having an outer control edge and wherein the outside diameter of the slotted bushings (16) is equal to the diameter the outer control edge of the tubular throttle ring (23; 123).
Claim 16
Dependent Claim
77 words
Magnetic valve according to claim 12, wherein the control slots (19) of each slotted bushing (16) are closed on the inside by the outer cover surface of a control bushing (17; 117) inserted in the slotted bushing, which control bushing (17; 117) has a frontal surface which aligns with the associated valve plate surface (2;102) and has an outside diameter which is equal to the diameter of recessed area edges (32) of the flat-body slide (3; 103).
Claim 17
Dependent Claim
57 words
Magnetic valve according to claim 2, further including a leg spring (20) which passes through the tubular flat-body slide (3; 103) and engages in the two valve plates (1; 101), the two legs of which spring rest against diametrically opposite points on the flat-body slide (3; 103) and are supported against the two valve plates (1; 101).
Claim 18
Dependent Claim
23 words
Magnetic valve according to claim 16, wherein the leg spring (20) is in the shape of one of a Z and an M.
Claim 19
Dependent Claim
15 words
Magnetic valve according to claim 16, wherein the legs are each disposed in a sleeve.
Claim 20
Dependent Claim
52 words
Magnetic valve according to claim 16, wherein the parallel legs of the leg spring (20) are supported on the valve plate (1; 101) by means of an inner cover surface of at least one control bushing (17), which surface is concentric to the cylindrical support surface of the flat-body slide (3; 103).
Claim 21
Dependent Claim
38 words
Magnetic valve according to claim 19, wherein the cylindrical opening in the flat-body slide (3; 103) has the same inside diameter in the area of the contact locations of the control bushings (17) for the leg spring (20).
Claim 22
Dependent Claim
40 words
Magnetic valve according to claim 1, having a preferably tubular flat-body slide, wherein the flat-body slide (3; 103) is arranged as core between the pole piece (6) of a magnetic system which is polarized by at least one permanent magnet.
Claim 23
Dependent Claim
32 words
Magnetic valve according to claim 1, wherein the control edges of both frontal surfaces of the flat-body slide (103) cooperate with two control slots (119) which preferably operate inversely to each other.
Claim 24
Dependent Claim
32 words
Magnetic valve according to claim 22, wherein he control edges of both frontal surfaces of the flat-body slide (103) cooperate with two control slots (119) which preferably operate inversely to each other.
Claim 25
Dependent Claim
16 words
Magnetic valve according to claim 23, wherein the control slots (119) have circular concentric slot edges.
Claim 26
Dependent Claim
46 words
Magnetic valve according to claim 21, wherein the flat-body slide (3; 103) has throttle ring (23; 123) made from one of a poor magnetic conducting material and a non-conducting material and has a surrounding conducting element (24; 124) made from a material that is easily magnetized.
Claim 27
Dependent Claim
27 words
Magnetic valve according to claim 25, wherein the throttle ring (23; 123) projects beyond the two frontal surfaces of the conducting element (24; 124) that surrounds it.
Claim 28
Dependent Claim
59 words
Magnetic valve according to claim 19, wherein the flat-body slide (3; 103) is arranged between two parallel flux-conducting strips (4), the spacing of which from each other is adapted to the outside dimensions of the flat-body slide (3; 103) and the end sections of which are conductively connected with the pole pieces (6) by means of permanent magnets (5).
Claim 29
Dependent Claim
27 words
Magnetic valve according to claim 27, wherein the flux-conducting strips (4) are formed by the spacing elements holding the valve plate surfaces (2; 102) in parallel planes.
Claim 30
Dependent Claim
80 words
Magnetic valve according to claim 19, further including two detent pins (7) which connect the two valve plate (1; 102) with each other, form magnetically conductive legs from the two pole pieces (6) to a yoke (12) supporting at least one magnetic spool (14) and are provided with longitudinal bores (8) which communicate on one side with a connection (29) and on the other side with a channel (18) in the valve plate (1; 101) which is completely penetrated thereby.
Claim 31
Dependent Claim
37 words
Magnetic valve according to claim 29, wherein the pole pieces (6) are comprised of several overlapping sheets, one of which projects beyond the other sheets as a stop sheet on the side facing the flat-body slide (3;103).
Claim 32
Dependent Claim
18 words
Magnetic valve according to claim 2, wherein the flat-body slide is comprised of laminated layers of different materials.
Claim 33
Dependent Claim
26 words
Magnetic valve according to claim 27, wherein the flux-conducting strips (4) and permanent magnets (5) are made from a three-pole permanent magnet formed in one piece.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-08 | 1992-05-09 | 1992-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-08 | 1996-05-09 | 1996-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-08 | 2000-05-09 | 2000-11-08 | $7700.00 | Window Closed / Lapsed |