Patent ID: 8584707
Filing Date: 2013-11-19
Classification: F01N,F16K,G01M,Y10T

Abstract:
1. A dosing manifold assembly comprising: a manifold body comprising a supply passage, an output passage, and a return passage; a first valve assembly connected to the manifold body, the first valve assembly comprising: a valve body including: an armature positioned at least partially in the first chamber, wherein the armature is configured to seal against the first valve seat when the first valve assembly is closed, and to move away from the first valve seat to allow fluid to pass through the control port and to the output passage when the first valve assembly is open; and a valve device positioned in the second chamber, and having a moveable portion positioned adjacent to the supply port to selectively admit fluid into the second chamber and past the first valve seat when the first valve assembly is open; wherein the valve body further defines at least one orifice between the supply port and the first valve seat, the orifice being in fluid communication with the return passage and configured for venting fluid that leaks past the valve device to the return passage when the first valve assembly is closed; the first valve assembly further comprises: wherein the output passage is configured to output fluid from the first valve assembly to a hydraulic component external to the manifold body; and the manifold body further comprises a detection passage configured to receive fluid from the hydraulic component external to the manifold body.