Corrosion-resistant armature and valve for anti-lock brake systems

摘要

A valve for an anti-lock brake system, wherein the anti-lock brake system is configured for controlling flow of a fluid, includes a housing defining a cavity therein and having a longitudinal axis, a valve seat disposed within the cavity so as to define a first passage for the fluid, and an armature disposed within the cavity so as to at least partially define a second passage for the fluid. The armature is translatable with respect to the valve seat along the longitudinal axis and matable with the valve seat to seal off fluid communication between the first passage and the second passage. The armature defines a surface that is substantially resistant to corrosion from the fluid, and the surface is substantially free from a coating including zinc.

主权项

1. A valve for an anti-lock brake system, wherein the anti-lock brake system is configured for controlling flow of a fluid, the valve comprising:
a housing defining a cavity therein and an inlet therethrough, wherein said housing has:
a longitudinal axis;a first inner surface spaced apart from said longitudinal axis;a second inner surface disposed parallel to said first inner surface and defining said inlet, wherein said second inner surface is disposed between said first inner surface and said longitudinal axis;a shoulder surface interconnecting and disposed perpendicular to said first inner surface and said second inner surface;wherein said first inner surface, said second inner surface, and said shoulder surface define said cavity; a cylindrical valve seat disposed entirely within said cavity so as to define a first passage for the fluid; wherein said cylindrical valve seat has a first end disposed in contact with said second inner surface, a second end spaced apart from said first end and defining an outlet disposed entirely within said cavity, and an outer wall disposed in contact with said second inner surface and interconnecting said first end and said second end; wherein said shoulder surface is disposed between said first end and said second end such that said second end is longitudinally spaced apart from said shoulder surface along a first axis that is parallel to said longitudinal axis, and such that said second end is radially spaced apart from said first inner surface along a second axis that is perpendicular to said longitudinal axis; and an armature disposed within said cavity so as to at least partially define a second passage for the fluid; wherein said armature has a tip that is configured for mating with said second end at said outlet; wherein said armature is translatable with respect to said cylindrical valve seat along said longitudinal axis so that said tip mates with said second end entirely within said cavity to seal off fluid communication between said first passage and said second passage; wherein said armature has a surface that is substantially resistant to corrosion from the fluid; wherein said surface is free from a coating including zinc.