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US 8,944,405 B2Granted
Solenoid valve plate
AssigneeSchaeffler Technologies AG & Co. KG
InventorsDebora Manther, Peter Stegmann, Jens Hoppe
Life of this patent
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Abstract
An electromagnetic hydraulic valve or solenoid having an electric plug, housing, magnetic coil, armature and armature pin, valve body and associated valve seat and valve plate and associated valve seat, the valve plate axially retained, but, freely floating laterally within the housing, such that the valve plate and valve plate seat is movable to align with the valve body and valve body seat.
Claims14
An electromagnetic hydraulic valve for an internal combustion engine comprising;
- an electromagnet comprising;
- a hollow cylindrical magnet housing or yoke ring;
- an electric plug contact;
- at least one hollow cylindrical coil winding inserted inside the magnet housing;
- a hydraulic valve comprising;
- a perforated hollow cylindrical valve housing connected at one end to the magnet housing;
- a hollow cylindrical armature inserted through the coil winding and axially movable according to a magnetic field generated by the coil winding;
- a pin inserted through a center of the armature;
- a valve body having a valve seat at one end;
- a valve plate having a valve seat at one end;
- the valve plate seat and valve body seat axially aligned and facing one another;
- the pin fixedly inserted through the armature and adapted to axially move the valve body;
- the valve plate seated against at least one axial retention means on a lower end of the valve plate, and having a loose fit inside the hollow cylindrical center of the valve housing, the valve plate laterally movable to align with the valve body seat along an entire circumference of the abuttable valve seats.
10 more elements
Dependencies are inferred from the claim text.