Patent Number: 6,293,241

Title: Internal combustion engine with combustion heater

Abstract: In an internal combustion engine with a combustion heater for elevating a temperature of an engine related element, an object of the present invention is to provide a technique that may effectively performs temperature elevation of an exhaust gas purifying device. In order to attain this object, according to the present invention, the internal combustion engine having an exhaust gas purifying catalyst provided in an exhaust passage of the internal combustion engine, and a combustion heater comprising a combustion chamber and a heat exchange portion for transmitting to an engine related element heat held by burnt gas that has been burnt in said combustion chamber, characterized by including a first burnt gas discharging portion for discharging from the combustion heater the burnt gas which has passed through the heat exhcange portion, a second burnt gas discharging portion for discharging from the combustion heater the burnt gas which has not yet passed through the heat exchange portion, and a burnt gas passage controlling unit for supplying at least one of burnt gas discharged by the first burnt gas discharging portion and burnt gas discharged by the second burnt gas discharging portion to the exhaust gas purifying catalyst.

Inventors: Suzuki; Makoto (Mishima, JP)

Assignee: Toyota Jidosha Kabushiki Kaisha

International Classification: F01N 3/20 (20060101); F01N 9/00 (20060101); F02B 29/00 (20060101); F02M 31/16 (20060101); F02M 31/02 (20060101); F23N 1/02 (20060101); F01N 3/30 (20060101); F02M 25/07 (20060101); F02N 017/02 (); F02G 005/00 ()

Expiration Date: 09/25/2018