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U.S. Department of Energy
Office of Scientific and Technical Information

Intake air heating apparatus

Patent ·
OSTI ID:6365372
This patent describes an intake air heating apparatus adapted to be positioned in the air intake passage of an intake manifold of an internal combustion engine. The apparatus comprises: a heater member of semiconductive ceramic material in the configuration of a grid having apertures for passing air therethrough between opposite sides thereof; spaced frame members supporting therebetween edge portions of the heater member; a pair of electric terminals fixed to at least one of the frame members; electrode lead members connected to the terminals and extending adjacent one side of the heater member; and metal plate members inserted between the heater member one side and the electrode lead members and making electrical contact therebetween.
Assignee:
Nippondenso Co., Ltd., Kariya and Toyota Jidosha Kabushiki Kaisha, Toyota
Patent Number(s):
US 4667644
OSTI ID:
6365372
Country of Publication:
United States
Language:
English