Patent ID: 8082907

Claim:
An air/oil separating PCV apparatus for an engine, comprising: a housing having an upper portion and a lower portion, said portions extending in a substantially lateral direction and configured to closeably mate to define an air intake tract therein, said housing including: at least one intake manifold connection provided on said housing and configured for connecting to an engine air intake manifold for air flow communication with said air intake tract; and a cyclone mist separator assembly received into said housing, said assembly having at least one separator cyclone to separate oil from engine blow-by gases, each cyclone having an axis of symmetry, said cyclones having: a tangential air inlet in communication with blow-by gases from an interior of said engine; an air outlet; and a protruding scavenge oil outlet member having a drain aperture therethrough; an oil reservoir defined in said mating housing portions and configured to receive oil from said separator cyclones; a one way oil drain valve interposed between an oil drain of said reservoir and an oil reservoir outlet connection on said housing leading to said engine interior, said drain valve preventing reverse flow of gases from said engine into said reservoir; a oil reservoir cap received into said housing and sized and configured to cover a top portion of said oil reservoir, said cap having at least one cap seal interface member, each seal interface member having a receptacle aperture sized and configured to insertably receive a portion of said oil outlet member therein, wherein said oil outlet members are in communication with an interior of said oil reservoir to deliver oil to said reservoir; and at least one seal member, each seal member received onto an outside surface of said oil outlet members and configured to seal between said oil outlet members and said receptacle apertures; wherein said housing portions are configured and adapted to be tooled in a vertical direction substantially perpendicular to said lateral direction of extension of said housing portions.