SPARK IGNITION TYPE ENGINE

Title:

SPARK IGNITION TYPE ENGINE

Document Type and Number:

Japanese Patent JP2023094739

Kind Code:

A

Abstract:

To provide a spark ignition type engine that has its startability improved.SOLUTION: A spark ignition type engine that comprises a main intake passage 1, a throttle valve 2 of the main intake passage 1, a bypass intake passage 3 bypassing the throttle valve 2, an ISC valve 4 of the bypass intake passage 3, and an electric controller 5 which adjusts the opening of the ISC valve 4 to control the engine rotating speed is so configured to crank the engine under the control of the electronic controller 5 with the ISC valve 4 throttled down to a cranking opening a predetermined quantity less than the full opening when starting the engine, so that intake negative pressure is generated on an intake downstream side 1b of the ISC valve 4.SELECTED DRAWING: Figure 1

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Inventors:

IGA MICHISUKE
TANAKA KAZUHIRO
HIROCHI MASANORI
OYAMA YOSHITOMO

Application Number:

JP2021210223A

Publication Date:

July 06, 2023

Filing Date:

December 24, 2021

Export Citation:

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Assignee:

KUBOTA KK

International Classes:

F02D41/06; F02D9/02; F02P5/145; F02P5/15

Attorney, Agent or Firm:

Shoji Suzue

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