Engine heater and method

Details Engine heater and method Engine heater and method

2007-12-11

2007-12-11

Wolfe, Jr., Willis R. (Department: 3747)

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

C123S568200, C060S605200

Reexamination Certificate

active

11435483

ABSTRACT:
An apparatus includes an exhaust gas recirculation (EGR) cooler (111) fluidly communicating with an intake system (117) and an exhaust system (109) of an engine (100). An EGR valve (113) is in fluid communication with the EGR cooler (111). A turbocharger turbine (103) has an inlet in fluid communication with the exhaust system (109) and an outlet in fluid communication with a vehicle exhaust system (177). A bypass valve (115) is in fluid communication with the EGR cooler (111) and the outlet of the turbine (103). A cooling system (200) includes a heater supply passage (222) and a heater return passage (224). A vehicle heater (220) is in fluid communication with the cooling system (200), wherein a flow path of coolant is defined between the EGR cooler (111), the heater supply passage (222), the heater (220), the heater return passage (224), and the engine (100).

REFERENCES:
patent: 6003315 (1999-12-01), Bailey
patent: 6138649 (2000-10-01), Khair et al.
patent: 7032577 (2006-04-01), Rosin et al.
patent: 7168419 (2007-01-01), Rosin et al.
patent: 7195006 (2007-03-01), Khair et al.
patent: 2001323844 (2001-11-01), None

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