Invention Grant
- Patent Title: Seat valve with electromagnetic actuation
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Application No.: US15700596Application Date: 2017-09-11
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Publication No.: US10393280B2Publication Date: 2019-08-27
- Inventor: Wolfgang Petri , Thomas Lütz , Stefan Pilz
- Applicant: Thomas Magnete GmbH
- Applicant Address: DE Herdorf
- Assignee: Thomas Magnete GmbH
- Current Assignee: Thomas Magnete GmbH
- Current Assignee Address: DE Herdorf
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: DE102016011058 20160912
- Main IPC: F16K15/18
- IPC: F16K15/18 ; F16K17/06 ; F16K11/048 ; F16K31/06

Abstract:
A seat valve with electromagnetic actuation combines, in one device, the functions of a seat valve, of a pressure-limiting valve and optionally also of one or more check valves. Furthermore, the switching noise of the seat valve function is reduced. In a de-energized state of an electromagnet, a fluid flow from a port P to a port TNC occurs only if a pressure difference between the ports P and TNC exceeds a limit value of ΔpG, wherein the force of the specified pressure difference overcomes the force of a spring and therefore pushes a first sealing body out of a first sealing seat, and in the energized state of the electromagnet, a fluid flow from port P to port TNC occurs even in the case of a pressure difference less than ΔpG if the force of the electromagnet together with the force of the pressure difference between the ports P and TNC overcomes the force of the spring, wherein the sum of the specified forces pushes the first sealing body out of the first sealing seat. The seat valve may be used in hydraulic brake systems of vehicles, also in vehicle gear mechanisms or in hydraulic drives.
Public/Granted literature
- US20180073649A1 Seat Valve With Electromagnetic Actuation Public/Granted day:2018-03-15
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