Electromechanical Valve
AssigneeSo Elektronik AB
InventorPer-Ove Johansson
Life of this patent
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Abstract
An electromechanical valve includes, in a housing, a core of magnetic material surrounded by a coil to be supplied with excitation current, a valve seat attached to the housing with a space to the core, at least one outlet port in the valve seat and at least one inlet port communicating via the space, and a valve washer of magnetic material suspended in the space to close the outlet port in absence of excitation current to the coil, the valve washer cooperating with the core to open/close the outlet port when excitation current is supplied to the coil.
Claims23
An electromechanical valve, comprising in a housing:
- a core of magnetic material having a centrally extending portion surrounded by a coil to be supplied with excitation current;
- a valve seat attached to the housing with a space to the core;
- at least one centrally located outlet port in the valve seat and at least one inlet port communicating via the space;
- and
- a valve washer of magnetic material suspended in the space to close the outlet port in absence of excitation current to the coil, the valve washer cooperating with the core to open the outlet port when excitation current is supplied to the coil, and the valve washer being formed by multiple layers of electromagnetic material providing a spring force when the valve washer is compressed.
An electromechanical valve, comprising in a housing:
- a core of magnetic material surrounded by a coil to be supplied with excitation current;
- a valve washer of magnetic material arranged in a space between a valve seat and the core to open/close the valve in response to the excitation current supplied to the coil, wherein the valve washer is formed by multiple stacked plates providing a spring force when the valve washer is compressed, the plates being at least partially displaceable in relation to each other in at least one direction.
An electromechanical valve, comprising in a housing:
- a core of magnetic material surrounded by a coil to be supplied with excitation current;
- a valve seat attached to the housing with a space to the core;
- at least one outlet port in the valve seat and at least one inlet port communicating via the space;
- and
- a valve washer of magnetic material arranged in the space to open/close the valve in response to excitation current supplied to the coil, wherein the valve washer is formed by multiple stacked plates, the plates being secured to each other at one section of the plates.
An electromechanical valve, comprising in a housing:
- a core of magnetic material surrounded by a coil to be supplied with excitation current;
- a valve seat attached to the housing with a space to the core;
- at least one outlet port in the valve seat and at least one inlet port communicating via the space;
- and
- a valve washer of magnetic material arranged in the space to open/close the valve in response to excitation current supplied to the coil, wherein the valve washer is formed by multiple stacked plates, the plates being provided with radially oriented slits.
Dependencies are inferred from the claim text.