Valve position sensor for a poppet fuel injector valve
OwnerGeorge D. Wolff, Michael S. Ziemackiinventors
Life of this patent
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Abstract
A poppet fuel injector valve includes a poppet valve which is positioned within a chamber in the injector and displaceable between open and closed positions. A passageway extends from an exterior surface of the injector into close proximity to the cavity in which the poppet valve is located. A valve position sensor is dimensioned to fit within the passageway and is displaceable into close proximity to the poppet valve. The valve position sensor generates an electrical output signal which corresponds to mechanical displacements of the poppet valve.
Claims37
A poppet fuel injector valve capable of receiving a magnetically sensitive valve position sensor, said valve and sensor comprising:
- (a) a poppet valve positioned within a chamber in said injector and displaceable between open and closed positions,
- (b) a passageway extending from an exterior surface or said injector into close proximity to the cavity in which said poppet valve is located, said passageway being dimensioned to receive a magnetically sensitive valve position sensor;
- (c) a magnetically sensitive valve position sensor slideable into and out of said passageway;
- (d) a magnet on the extremity of said valve adjacent said passageway;
- and wherein
- (e) said passageway extends sufficiently adjacent said chamber such that the positioning of said magnetically sensitive sensor at the extremity of said passageway permits said sensor to detect magnetic flux changes of said magnet, as said magnet moves with said valve between said open and closed positions.
A poppet fuel injector valve comprising:
- (a) a poppet valve positioned within a chamber in said injector and displaceable between open and closed positions;
- (b) a passageway extending from an exterior surface of said injector into close proximity, on the order of between 0.2 to 210 millimeters, to said poppet valve in said chamber;
- and
- (c) a valve position sensor dimensioned to fit within said passageway for generating an electrical output signal corresponding to mechanical displacements of said poppet valve as said poppet valve opens and closes.
A poppet fuel injector valve comprising:
- (a) a poppet valve positioned within a chamber in said injector and displaceable between open and closed positions;
- (b) a passageway extending from an exterior surface of said injector into close proximity to said poppet valve;
- and
- (c) a valve position sensor dimensioned to slide into and out of said passageway and displaceable into close proximity to said poppet valve for generating an electrical output signal corresponding to mechanical displacements of said poppet valve.
A poppet fuel injector valve, comprising:
- (a) a valve body having a fuel passageway therein for receiving pressurized fuel;
- (b) a poppet valve extending through said body for opening and closing said fuel passageway;
- (c) a sensor passageway extending through said valve body and axial with said valve;
- (d) a magnetically sensitive sensor dimensioned for sliding into and out of said sensor passageway;
- and
- (e) a magnet at the extremity of said valve adjacent the extremity of said sensor passageway.
Dependencies are inferred from the claim text.