Crankcase vapor purification device

Details Crankcase vapor purification device Crankcase vapor purification device

2011-03-29

2011-03-29

McMahon, M. (Department: 3783)

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

Reexamination Certificate

active

07913677

ABSTRACT:
A vapor purifier for oil recovery from and cleansing of deleterious matter carried by oil vapors in a crankcase of an internal combustion-type engine generally includes a coil member that can separate the oil from the vapors by passing the vapors over and/or through the coil member. As the vapors impinge upon the surface(s) of the coil member, oil in the blow-by vapors condenses thereon. The vapor purifier can include a flow equalization member to maintain a normal engine intake manifold pressure for driving modes of the engine. As a result, the vapor purifier of the present invention can maintain the air to fuel stoichiometric ratio of the engine system. Additional components, such as filters and/or disks can also be included in the vapor purifier to promote oil recovery and cleansing of deleterious matter from the vapors, which act as a host for the deleterious matter.

REFERENCES:
patent: 3616779 (1971-11-01), Newkirk
patent: 5564401 (1996-10-01), Dickson
patent: 5586996 (1996-12-01), Manookian, Jr.
patent: 6279555 (2001-08-01), Crowell et al.
patent: 7677228 (2010-03-01), Manookian, Jr.
patent: 2005/0092309 (2005-05-01), Bedkowski et al.

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