Leaked fuel gas return-flow structure for engine

An engine and gas technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of reduced engine lubrication performance, increased engine size, easy occurrence of sand sintering, etc., to achieve improved sealing performance, improved lubrication performance, The effect of preventing sand sintering

Inactive Publication Date: 2003-10-08
SUZUKI MOTOR CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the leaking gas cannot flow back smoothly
This causes the following disadvantages: The oil quality drops sharply and the lubricating performance of the engine decreases
This causes the following disadvantages: the volume of the cylinder block is increased to generate a large number of casting holes and the quality of the raw material is poor
This results in the following disadvantages: These pins are prone to sand sintering
Also, since the surface pressure on the cylinder head gasket is concentrated next to the cylinder block side bolt holes, no surface pressure can be developed between the adjacent cylinder head mounting bolts
This

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
  • Leaked fuel gas return-flow structure for engine
  • Leaked fuel gas return-flow structure for engine
  • Leaked fuel gas return-flow structure for engine

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0050] The embodiments of the present invention will be described in detail below with reference to the drawings.

[0051] figure 1 with 2 The first embodiment is shown. in figure 1 with 2 Among them, 2 is the engine; 4 is the cylinder block; 6 is the cylinder head; 8 is the crankshaft; 10 is the connecting rod; 12 is the piston; 14 is the camshaft; 16 is the combustion chamber; 18 is the air inlet; 20 is the air outlet; 22 is the crankcase; 24 is the oil tank; 26 is the cylinder front cover; 28 is the intake manifold; 30 is the intake passage; 32 is the throttle valve; 34 is the air outlet manifold; 36 is the air cleaner.

[0052] The cylinder head 6 is fastened on the top surface of the cylinder block 4 by a plurality of first and second cylinder head mounting bolts 40-1 and 40-2 via a cylinder head gasket 38. These bolts 40-1 and 40-2 pass through the first and second cylinder head side bolt holes 42-1 and 42-2 in the cylinder head 6 and then pass through the cylinder head m...

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

A blowby gas-returning structure for an engine which is adapted to provide smooth returning of a blowby gas, and to provide a light-weight or compact engine. The blowby gas-returning structure is provided with passage-forming object or wall in order to continue blowby gas passages without interruption. Further, the cylinder block may be provided with void space sections which share space with the blowby gas passages and the cylinder head-mounting bolt holes. In addition, the blowby gas passage in the cylinder head may be disposed offset substantially midway along the length thereof.

Description

technical field [0001] This application is a divisional application of the patent application with the application number 97120232.X, the application date being October 29, 1997, and the title being "leakage gas return structure of engine". [0002] The invention relates to a leaking gas return structure of an engine, in particular to a leaking gas return structure of an engine which can smoothly return the leaking gas. Background technique [0003] In the engine, gas leaks from the combustion chamber into the crankcase through the gap between the piston and the cylinder liner. The main component of the leakage gas is the unburned gas containing a large amount of hydrocarbon (HC), which needs to flow back into the combustion chamber for reburning. For this purpose, a blowby gas recirculation system is used, in which, as is known, the flow rate control valve (PCV valve) is driven with the intake manifold pressure of the intake system as the loading state of the engine, so th...

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
IPC IPC(8): F01M13/00F01M13/02F02B75/18F02B75/20F02F1/00F02F7/00
CPCF02F7/006F01M13/022F02B2075/1816F02B2275/18F01M13/028F02B75/20
Inventor 笠原智
Owner SUZUKI MOTOR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap