Document Type and Number:
Japanese Patent JPWO2021161553
Kind Code:
A1
Abstract:
This sub-chamber spark ignition engine comprises a main chamber (21), a sub-chamber (22) sectioned by the main chamber (21) and a dividing wall (23), a plurality of communication paths (24) provided to the dividing wall (23), a fuel injection valve furnished in a wall section of the main chamber (21), and a spark plug (18) that ignites an air-fuel mixture in the sub-chamber (22), the flames formed in the sub-chamber (22) by the ignition of the air-fuel mixture in the sub-chamber (22) being emitted into the main chamber (21) via the communication paths (24) to ignite the air-fuel mixture in the main chamber (21), wherein the communication paths (24) include swirl-flow-generating communication paths (24c) that are formed at an angle inclined relative to the center direction of the sub-chamber (22) and that generate a swirl flow in the sub-chamber (22) through compressed air from the main chamber (21), and a fuel inflow communication path (24a) that is formed at a different angle than the swirl-flow-generating communication paths (24c) in relation to the center direction of the sub-chamber (22) and that supplies fuel into the sub-chamber (22) from the main chamber (21) side.
Application Number:
JP2022500215A
Publication Date:
August 19, 2021
Filing Date:
July 01, 2020
Export Citation:
Domestic Patent References:
| JPS57173524A | 1982-10-25 | |||
| JP2004204835A | 2004-07-22 | |||
| JP2006144648A | 2006-06-08 |