High pressure mixing head and reactive component injection valve

Abstract From the Canadian patent

A high pressure mixing head for mixing at least two reactive components for reaction injection molding or reinforced reaction injection molding processes, and a reactive component injection valve for such high pressure mixing head. The mixing head comprises a mixing head body having an elongated mixing chamber with a first metering plunger therein, said mixing chamber communicating with an elongated quieting chamber disposed substantially normal to said mixing chamber, said mixing chamber having at least one inlet port through which a reactive component is injected by a reactive component injection valve. The quieting chamber has a second clean-out plunger therein. The first metering …