PASSIVE RE-INDUCTION APPARATUS, SYSTEM, AND METHOD FOR RECIRCULATING EXHAUST GAS IN GASOLINE AND DIESEL ENGINES
First Claim
1. An exhaust gas re-induction apparatus, comprising:
- an oxygen sensor receiver portion structured to receive an oxygen sensor apparatus at a first opening; and
an exhaust gas redirection portion that is swivelly coupled to the oxygen sensor receiver portion, and structured to receive an exhaust gas re-circulation conduit apparatus at a second opening, wherein the exhaust gas redirection portion is structured to swivel relative to the oxygen sensor receiver portion so that the exhaust gas re-circulation conduit apparatus is rotatable relative to the oxygen sensor apparatus.
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Accused Products
Abstract
An exhaust gas re-induction apparatus and system. The exhaust gas re-induction apparatus is coupled to an exhaust system or catalytic converter of an engine. The exhaust gas re-induction apparatus includes an oxygen sensor substitute apparatus having an exhaust gas diffusion chamber disposed therein, and an exhaust gas interface housing to receive the oxygen sensor substitute apparatus. A recirculation conduit connects the exhaust gas re-induction apparatus to an air inlet of an engine. The oxygen sensor substitute apparatus includes a coupling section to attach the oxygen sensor substitute apparatus in place of an oxygen sensor apparatus. The oxygen sensor substitute apparatus also includes an exhaust gas dispersion section having a plurality of orifices for dispersing exhaust gas. The exhaust gas re-induction apparatus and the recirculation conduit have always-open passages in which the exhaust gas is recirculated to the engine at different rates depending essentially on the operating speed of the engine.
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Citations
20 Claims
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1. An exhaust gas re-induction apparatus, comprising:
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an oxygen sensor receiver portion structured to receive an oxygen sensor apparatus at a first opening; and an exhaust gas redirection portion that is swivelly coupled to the oxygen sensor receiver portion, and structured to receive an exhaust gas re-circulation conduit apparatus at a second opening, wherein the exhaust gas redirection portion is structured to swivel relative to the oxygen sensor receiver portion so that the exhaust gas re-circulation conduit apparatus is rotatable relative to the oxygen sensor apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An exhaust gas passive re-induction system, comprising:
an exhaust gas re-induction apparatus coupled to at least one of (a) an exhaust system and (b) a catalytic converter of an engine and structured to receive exhaust gas, sense an oxygen content within the exhaust gas, and recirculate the exhaust gas to an air inlet of the engine, wherein the exhaust gas re-induction apparatus includes; an oxygen sensor receiver portion structured to receive an oxygen sensor apparatus at a first opening; and an exhaust gas redirection portion that is swivelly coupled to the oxygen sensor receiver portion, and structured to receive an exhaust gas re-circulation conduit apparatus at a second opening, wherein the exhaust gas redirection portion is structured to swivel relative to the oxygen sensor receiver portion so that the exhaust gas re-circulation conduit apparatus is rotatable relative to the oxygen sensor apparatus. - View Dependent Claims (15, 16, 17, 18)
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19. A method for passively recirculating exhaust gas in an engine, the method comprising:
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removing an oxygen sensor apparatus from at least one of (a) an exhaust system and (b) a catalytic converter of an engine; inserting an oxygen sensor substitute apparatus in place of the oxygen sensor apparatus; disposing an oxygen sensor receiver portion around a portion of the oxygen sensor substitute apparatus; coupling the oxygen sensor apparatus to the oxygen sensor receiver portion; swivelly coupling an exhaust gas redirection portion to the oxygen sensor receiver portion around a portion of the oxygen sensor substitute apparatus; disposing a fastener on an end portion of the oxygen sensor substitute apparatus; coupling a gas re-circulation conduit apparatus to the exhaust gas redirection portion and to an air inlet of an engine; and swiveling the exhaust gas redirection portion relative to the oxygen sensor receiver portion so that the gas re-circulation conduit apparatus rotates relative to the oxygen sensor apparatus. - View Dependent Claims (20)
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Specification