Fuel intake system for a supercharged engine

Patent · Tue Jan 28 04:00:00 EST 1986

OSTI ID:5828027

Tadokoro, T; Okimoto, H; Matsuda, I

This patent describes a fuel intake system for a supercharged internal combustion engine having at least one engine cylinder. This system consists of a combination of the following: primary intake passage means for supplying at least a suction air to the combustion chamber; and auxiliary intake passage means including a supercharger for supplying at least a supercharged air to the combustion chamber. The supercharger is constituted by a displacement air pump, the displacement air pump having a suction port, an exhaust port and a working chamber and being operable to exert a substantially pulsating flow of air from the exhaust port in correspondence with change in volume of the working chamber. The supercharger has a drive for the displacement air pump from the engine and for supplying the supercharged air into the combustion chamber at least during the period in which the combustion chamber is held under the compression stroke. The supercharger has first and second pairs of suction and exhaust ports, the suction and exhaust ports of the first pair are in communication with respective passage portions of the auxiliary intake passage means, and further comprising secondary air supply passage means for supplying a secondary air to an exhaust system of the engine, the suction and exhaust ports of the second pair are in communication with respective passage portions of the secondary air supply passage.

• Assignee: Mazda Motor Corp., Hiroshima
• Patent Number(s): US 4566422
• OSTI ID: 5828027
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AIR FLOW
COMBUSTION CHAMBERS
COMPRESSION
COMPRESSORS
CYLINDERS
DESIGN
ENGINES
EXHAUST SYSTEMS
FLUID FLOW
FUEL SYSTEMS
GAS FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
PULSATIONS
PUMPS
SUPERCHARGERS