Title:
MOUNTING STRUCTURE FOR FUEL INJECTION VALVE
Document Type and Number:
Japanese Patent JP2018172972
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a mounting structure for a fuel injection valve capable of suppressing a temperature rise in a nozzle and suppressing increase in cost of manufacture.SOLUTION: A mounting structure for a fuel injection valve comprises: an engine body 4 in which an injector mounting hole 26 communicating to a sub combustion chamber 24 is formed; a cylindrical member 30 which is inserted into the injector mounting hole 26; and an injector 31 inserted into the cylindrical member 30 and including a nozzle 31C which injects a fuel towards the sub combustion chamber 24. The cylindrical member 30 has a polygonal cross section including multiple side parts 30A and multiple corner parts 30B. A cross-sectional contour shape of a distal end closer to the sub combustion chamber 24 is formed smaller than a cross-sectional contour shape of a proximal end opposite to the sub combustion chamber 24. At the side of the proximal end, the corner parts 30B are abutted to an inner peripheral surface of the injector mounting hole 26 in a resilient manner and at the side of the distal end, the side parts 30A are abutted to an outer peripheral surface of the nozzle 31C in a resilient manner.SELECTED DRAWING: Figure 1
Inventors:
NAKANISHI KEITARO
Application Number:
JP2017069547A
Publication Date:
November 08, 2018
Filing Date:
March 31, 2017
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
F02M61/14
Attorney, Agent or Firm:
Patent business corporation Oshima patent office