Patent · US Active

Electromagnetic valve

US10533678B2 · kind B2 · utility

2Cited by

1References

10Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Patrick Levien · Großenhain, DE
Felix Mayer · Männedorf, CH
Georg Maier · Weisendorf, DE

Key dates

Filing date	Dec 26, 2017
Grant date	Jan 14, 2020
Priority date	—
Expiry date	Dec 26, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K31/0696
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An electromagnetic valve has a valve chamber which has an inflow opening for supplying a liquid and an outlet for discharging the liquid. The valve includes a valve seat and a valve member that is assigned to the valve seat. The fluidic connection between the inflow opening and the outlet of the valve is interrupted when a valve seat is closed by the valve member. The valve member is held on an armature plate which is moved by an electromagnetic drive unit toward an end stop which is formed by a first stop surface. In order for the operative capability of the valve to be guaranteed in the case of wear on the end stop, the armature plate is assigned a second stop surface which upon a predefined wear on the first stop surface forms a downstream end stop.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.