Patent ID: 6390569
Filing Date: 2002-05-21
Classification: B60T

Abstract:
A vehicle solenoid valve for a vehicle fluid system, comprising:a plunger housing establishing a first fluid communication path and a second fluid communication path; one and only one plunger ball within the housing; and a plunger slidably disposed relative to the plunger housing, the plunger contacting the plunger ball, the plunger being movable between a de-energized configuration, wherein fluid communication through the first fluid communication path is permitted and fluid communication through the second fluid communication path is blocked by the plunger ball, an energized configuration, wherein fluid communication through the first fluid communication path is blocked by the plunger ball and fluid communication through the second fluid communication path is permitted, and a pressure relief configuration, wherein, while the valve is energized, fluid pressure on the plunger ball surpasses a predetermined pressure level to overcome an opposing magnetic force on the plunger and permit fluid communication through the first fluid communication path.