PURPOSE: To improve the heating efficiency of mixtured gas to be supplied form a carburetor and perform efficient vaporization of liquidified fuel under non-vaporized conditions.
CONSTITUTION: This device is provided with a pair of radiation boards 11, 12 fitted to the inner circumferential wall part of intake pipe 2 which connects the intake passage of carburetor to the intake port of cylinder of an engine, through flange parts 11b, 12B formed integrally with plate parts 11A, 12A, and a PTC heat emmitting element 15 being pressure contacted with the upper faces of the flange parts 11B, 12B of the flanges 11, 12 of the radiation boards and generating heat with current supply from a battery. The plate parts 11A, 12A constituting the respective radiation boards 11, 12 are disposed at the positions where mixed gas or liquidified guel in the intake pipe 2 flows maximum, and the flange parts 11B, 12B constituting the respective radiation plates 11, 12 are partially protruded in the inward direction of the intake pipe 2.
KATO HIDESUMI
KAWAMURA KAZUHIRO
