Extended stroke, high flow, valve and the assembly made therewith

A tire inflation system for a vehicle, comprising:

• a control unit having an internal fluid conduit in selective fluid communication with a wheel assembly;
• an extended stroke valve disposed in said control unit, wherein said extended stroke valve comprises:
• a hollow outer shaft having a first flange;
• a first biasing member surrounding said hollow outer shaft, wherein said first biasing member is disposed axially between said first flange and a radially inward protrusion defined by said control unit;
• an inner shaft having a second flange, wherein said inner shaft is at least partially disposed in said hollow outer shaft;
• a second biasing member disposed about said inner shaft, wherein said second biasing member is disposed axially between said second flange and a surface defined by said hollow outer shaft;
• a sealing member coupled with an end of said inner shaft opposed said second flange;
• a housing in fluid communication with said internal fluid conduit and said wheel assembly, wherein said housing comprises:
• a first chamber and a second chamber in selective fluid communication via a passage;
• a first port in fluid communication with said internal fluid conduit and said passage;
• a second port in fluid communication with said second chamber and said wheel assembly;
• and
• a vent to atmosphere;
• and
• wherein the extended stroke valve further comprises:
• a first position, wherein in said first position said second port is in fluid communication with said vent to atmosphere and said sealing member is in sealing engagement with a surface of said protrusion;
• and
• a second position, wherein in said second position said second port is in fluid communication with said first port.

A tire inflation system for a vehicle, comprising:

• a control unit having an internal fluid conduit in selective fluid communication with a wheel assembly;
• an extended stroke valve disposed in said control unit, wherein said extended stroke valve comprises:
• a hollow outer shaft having a first flange;
• a first biasing member surrounding said hollow outer shaft, wherein said first biasing member is disposed axially between said first flange and a radially inward protrusion defined by said control unit;
• an inner shaft having a second flange, wherein said inner shaft is at least partially disposed in said hollow outer shaft;
• a second biasing member disposed about said inner shaft, wherein said second biasing member is disposed axially between said second flange and a surface defined by said hollow outer shaft;
• a sealing member coupled with an end of said inner shaft opposed said second flange;
• a housing in fluid communication with said internal fluid conduit and said wheel assembly, wherein said housing comprises:
• a first chamber and a second chamber in selective fluid communication via a passage;
• a first port in fluid communication with said internal fluid conduit and said passage;
• a second port in fluid communication with said second chamber and said wheel assembly;
• and
• a vent to atmosphere;
• and
• wherein the extended stroke valve further comprises:
• a first position, wherein in said first position said second port is in fluid communication with said vent to atmosphere;
• and
• a second position, wherein in said second position said second port is in fluid communication with said first port and said sealing member is in sealing engagement with a surface of said housing between said second port and said vent to atmosphere.