Intake arrangement for internal combustion engine

Patent · Tue Dec 02 04:00:00 EST 1986

OSTI ID:7226218

Hatamura, K; Asanomi, K

An intake arrangement is described for an internal combustion engine having a combustion chamber including a cylinder having an axial and a lateral direction and a cylinder head, comprising: first and second intake ports for supplying intake gases into the combustion chamber, which open into the combustion chamber; intake valves for opening and closing the intake ports, respectively; a main intake passage having a centerline constituting a main-axis; a shutter valve for opening and closing the main intake passage, which is provided in the main intake passage; the shutter valve being adapted to be held in a closed state when the amount of intake gases is small and to be opened when the amount of intake gases is increased; a throttle valve in the main intake passage upstream of the shutter valve with respect to a direction of flow of gases towards the combustion chamber; the main intake passage being branched, at a branch point disposed downstream of the shutter valve, into first and second branch intake passages such that the first and second branch intake passages are, respectively, connected to the first and second intake ports; the first and second branch intake passages being on opposite sides of the center line; and means for causing a swirling flow of the gases in a circumferential direction of the combustion chamber comprising an auxiliary intake passage.

• Assignee: Mazda Motor Corp., Hiroshima
• Patent Number(s): US 4625687
• OSTI ID: 7226218
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
COMBUSTION CHAMBERS
CONTROL EQUIPMENT
CYLINDERS
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
GAS FLOW
HEAT ENGINES
INTAKE STRUCTURES
INTERNAL COMBUSTION ENGINES
MECHANICAL STRUCTURES
VALVES
VORTEX FLOW