초록 ▼

A solenoid valve comprising a magnetic drive having at least two parallel coils which are arranged with their end faces lying between two spaced apart magnetic yoke plates, a stationary magnetic plug and an axially movable magnetic core each being arranged in each coil which together with the magnet

A solenoid valve comprising a magnetic drive having at least two parallel coils which are arranged with their end faces lying between two spaced apart magnetic yoke plates, a stationary magnetic plug and an axially movable magnetic core each being arranged in each coil which together with the magnetic yoke plates form a ferromagnetic circuit. At least one further magnetic element which is firmly connected to a respective yoke plate on two opposite ends is arranged between the magnetic plates.

대표청구항 ▼

1. A solenoid valve comprising a magnetic drive having two spaced apart magnetic yoke plates, at least two parallel coils having end faces and being arranged with their end faces to lie between the two spaced apart magnetic yoke plates,a stationary magnetic plug and an axially movable magnetic core

1. A solenoid valve comprising a magnetic drive having two spaced apart magnetic yoke plates, at least two parallel coils having end faces and being arranged with their end faces to lie between the two spaced apart magnetic yoke plates,a stationary magnetic plug and an axially movable magnetic core both being arranged in each coil, wherein the stationary magnetic plug and axially movable magnetic core within each coil, together with the magnetic yoke plates, forms a ferromagnetic circuit, andat least one further magnetic element having opposite ends, being firmly connected to a respective yoke plate on each of the opposite ends of the at least one further magnetic element, and being arranged between the magnetic yoke plates,wherein the magnetic element is configured as a magnetic plate, andwherein the magnetic plate has wedge-shaped thickened longitudinal edges extending over the entire length. 2. The solenoid valve according to claim 1, wherein the at least one magnetic element is arranged between the coils as viewed in an axial direction. 3. The solenoid valve according to claim 1, wherein the magnetic yoke plates are configured in a multilayered manner. 4. The solenoid valve according to claim 1, wherein two parallel magnetic yoke bolts are arranged between the magnetic yoke plates. 5. The solenoid valve according to claim 4, wherein the magnetic yoke plates have recesses, and wherein the ends of the two yoke bolts protrude in the recesses within the magnetic yoke plates. 6. A solenoid valve comprising a magnetic drive having two spaced apart magnetic yoke plates, at least two parallel coils having end faces and being arranged with their end faces to lie between the two spaced apart magnetic yoke plates,a stationary magnetic plug and an axially movable magnetic core both being arranged in each coil, wherein the stationary magnetic plug and axially movable magnetic core within each coil, together with the magnetic yoke plates, forms a ferromagnetic circuit, andat least one further magnetic element having opposite ends, being firmly connected to a respective yoke plate on each of the opposite ends of the at least one further magnetic element, and being arranged between the magnetic yoke plates, andwherein at least one of the magnetic yoke plates has an axial gap between the coils as viewed in an axial direction for minimizing a possibly present stray flux to the adjacent coil and wherein two parallel magnetic yoke bolts are arranged between the magnetic yoke plates and wherein the gap extends from a longitudinal edge of the yoke plate and partially extends about at least one of the two parallel magnetic yoke bolts as viewed in an axial direction. 7. The solenoid valve according to claim 6, further comprising a fluid housing, wherein the magnetic drive is connected to the fluid housing comprising two actuating elements which are each actuated by a magnetic core associated therewith. 8. The solenoid valve according to claim 7, wherein the fluid housing has recesses, and that the movable magnetic cores project through the recesses into the fluid housing to move the actuating elements. 9. A solenoid valve comprising a magnetic drive having two spaced apart magnetic yoke plates, at least two parallel coils having end faces and being arranged with their end faces to lie between the two spaced apart magnetic yoke plates, a stationary magnetic plug and an axially moveable magnetic core both being arranged in each coil, wherein the stationary magnetic plug and axially movable magnetic core within each coil, together with the magnetic yoke plates, forms a ferromagnetic circuit, and at least one further magnetic element having opposite ends, being firmly connected to a respective yoke plate on each of the opposite ends of the at least one further magnetic element, and being arranged between the magnetic yoke plates and, wherein at least one of the magnetic yoke plates has an axial gap between the coils as viewed in an axial direction for minimizing a possibly present stray flux to the adjacent coil, and, wherein at least one of the magnetic yoke plates has two gaps extending from opposite longitudinal edges of the magnetic yoke plate and extending along the magnetic element to then approach each other. 10. The solenoid valve according to claim 9, wherein the gaps have an L-shaped geometry. 11. A solenoid valve comprising a magnetic drive having two spaced apart magnetic yoke plates, at least two parallel coils having end faces and being arranged with their end faces to lie between the two spaced apart magnetic yoke plates,a stationary magnetic plug and an axially movable magnetic core both being arranged in each coil, wherein the stationary magnetic plug and axially movable magnetic core within each coil, together with the magnetic yoke plates, forms a ferromagnetic circuit, andat least one further magnetic element having opposite ends, being firmly connected to a respective yoke plate on each of the opposite ends of the at least one further magnetic element, and being arranged between the magnetic yoke plates,wherein the magnetic yoke plates are stamped sheet stacks, andwherein at least one of the magnetic yoke plates has an axial gap between the coils and wherein the gap is axially not continuous and extends only through some sheet metal layers.