Unlock instant, AI-driven research and patent intelligence for your innovation.

Internal combustion engine

A technology for internal combustion engines and cooling fins, applied in mechanical equipment, engine components, machines/engines, etc., can solve problems such as cylinder deformation, cylinder miniaturization hindrance, weight increase, etc., to achieve the effect of suppressing deformation and suppressing damage to the appearance

Active Publication Date: 2020-10-09
HONDA MOTOR CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the case of an internal combustion engine having a substantially horizontal cylinder as in the aforementioned Japanese Patent Application Laid-Open No. 2009-235930, rainwater or the like tends to enter between a plurality of cooling fins on the cylinder.
In order to easily discharge the rainwater, etc., it is conceivable to thicken the base of the cooling fin, but this may lead to deformation of the cylinder, increase in weight, and hinder the miniaturization of the cylinder.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Internal combustion engine
  • Internal combustion engine
  • Internal combustion engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that directions such as front, rear, left, and right in the following description are the same as the directions for the vehicle described below unless otherwise specified. In addition, arrows FR indicating the front of the vehicle, arrows LH indicating the left of the vehicle, and arrows UP indicating the upward direction of the vehicle are shown at appropriate locations in the drawings used in the following description.

[0035] exist figure 1 In the illustrated motorcycle (straddle type vehicle) 101 , the frame 102 is integrally formed by joining various steel materials by welding or the like. The frame 102 has a single main pipe 108 extending rearward and downward from the head pipe 103 that supports the front wheel suspension system in a steerable manner, and the space between the head pipe 103 and the seat 109 for the occupant is set as a lower p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an internal combustion engine which can easily discharge rainwater and the like entering between cooling fins and can easily restrain deformation and weight increase of a cylinder. The internal combustion engine (1) is provided with: a crankcase that houses a crankshaft; a cylinder block (3a) protruding from the crankcase, the cylinder block (3a) being provided with a plurality of upper cooling fins (35) that rise upward from the upward-facing cylinder upper surface and are arranged at intervals in the arrangement direction along the cylinder upper surface. At least oneof the plurality of upper cooling fins (35) is provided with a communication part (40) which passes through the upper cooling fins (35) in the arrangement direction and communicates the spaces on bothsides in the arrangement direction with each other.

Description

technical field [0001] The present invention relates to internal combustion engines. Background technique [0002] Cooling fins are sometimes provided on cylinder blocks and cylinder heads of internal combustion engines mounted on vehicles such as motorcycles. For example, Japanese Unexamined Patent Application Publication No. 2009-235930 discloses a structure in which a plurality of cooling fins are provided on the upper wall of the cylinder block in an internal combustion engine having a substantially horizontal cylinder with an inclined posture of high front and low rear. In this configuration, each cooling fin provided on the upper wall of the cylinder block extends in the traveling direction of the motorcycle (vehicle front-rear direction). The plurality of cooling fins are arranged at intervals in the vehicle width direction on the upper wall of the cylinder block. [0003] However, in the case of an internal combustion engine having substantially horizontal cylinder...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/06
CPCF02F1/065F02F1/06
Inventor 原田诚上村拓真北田芳宏铃木达阳
Owner HONDA MOTOR CO LTD
PatSnap Eureka logo

PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.

X (Twitter)LinkedInYouTubeSubstack

© 2026 PatSnap. All rights reserved. 

Terms of Service

 | 

Privacy policy

 | 

Modern Slavery Act Transparency Statement