Electromagnetic valve
AssigneeRobert Bosch GmbH
InventorsHeinz Flaschar, Heinz Gand
Life of this patent
Estimating the term…
Abstract
The valve housing of an electromagnetic valve has a bore formed with a valve seat and a pair of fluid ports which communicate with the bore at opposite sides of the valve seat. A valve member is movable in the bore between first and second positions in which the valve member respectively engages and is spaced from the valve seat. The electromagnetic valve also includes an electromagnet which has a portion engageable with the valve member and which is movable between one position and another position in which it respectively permits and prevents movement of the valve member between said first and second positions thereof.
Claims12
An electromagnetic valve, comprising a valve housing having an elongated bore formed with a valve seat, said bore comprising a plurality of portions which successively decrease in cross-section in the direction of the elongation of said bore towards the interior of said valve housing so as to include a largest bore portion, a medium-sized bore portion and a smallest bore portion;
- a fluid inlet port and a fluid outlet port communicating with said bore at opposite sides of said valve seat, said fluid outlet port comprising a longitudinally-extending passage and a transverse passage communicating with said longitudinally-extending passage and extending in direction transversely of the elongation of said bore until said transverse passage reaches said medium-sized bore portion;
- a valve member movable in said bore between first and second positions in which it respectively engages and is spaced from said valve seat;
- and electromagnetic means having a portion engageable with said valve member and being movable between one position and another position in which it respectively permits and prevents movement of said valve member between said first and second positions thereof.
An electromagnetic valve, comprising a valve housing having an elongated bore formed with an open end and with a valve seat, said bore comprising a plurality of portions which successively decrease in cross-section in the direction of the elongation of said bore from said open end towards the interior of said valve housing;
- a fluid inlet port and a fluid outlet port communicating with said bore at opposite sides of said valve seat, said fluid outlet port comprising a longitudinally-extending passage and a transverse passage communicating with said longitudinally extending passage and extending in direction transversely of the elongation of said bore until said transverse passage reaches said bore intermediate said valve seat and said open end;
- a valve member movable in said bore between first and second positions in which it respectively engages and is spaced from said valve seat;
- and electromagnetic means having a portion engageable with said valve member and being movable between one position and another position in which it respectively permits and prevents movement of said valve member between said first and second positions.
An electromagnetic valve, comprising a one-piece valve housing having two opposite end faces, said housing having an elongated bore extending inwardly from one of said end faces and formed with a valve seat, said bore including a plurality of portions which successively decrease in cross-section in the direction of the elongation of said bore from said one end face towards the interior of said housing, said housing having a fluid inlet port and a fluid outlet port formed at the other end face of said housing and communicating with said bore at opposite sides of said valve seat, said bore and said inlet port and outlet port being formed in said one-piece housing;
- a valve member movable in said bore between first and second positions in which it respectively engages and is spaced from said valve seat;
- and electromagnetic means located in a casing having a mounting face in abutment with said one end face of said housing, said electromagnetic means having a portion engageable with said valve member and being movable between one position and another position in which it respectively permits and prevents movement of said valve member between said first and said second positions thereof.
Dependencies are inferred from the claim text.