Longitudinally-adjustable connecting rod with cylinder-piston unit with rotational locking

An anti-rotation, connecting rod technology, applied to the second connecting rod, the connecting rod of the joint, can solve the problems of expensive cylinder hole sealing and high production cost, and achieve the effect of minimizing the remaining gap and avoiding waste

Active Publication Date: 2020-02-14
IWIS MOTORSYSTEME GMBH & CO KG +1
View PDF36 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Independent of the cross-sectional profile of the piston and cylinder, the disadvantage of this type of anti-twist is high production costs and expensive sealing of the cylinder bore

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
  • Longitudinally-adjustable connecting rod with cylinder-piston unit with rotational locking
  • Longitudinally-adjustable connecting rod with cylinder-piston unit with rotational locking
  • Longitudinally-adjustable connecting rod with cylinder-piston unit with rotational locking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] exist figure 1An internal combustion engine (gasoline engine) 1 is schematically illustrated in . The internal combustion engine 1 has three cylinders 2.1, 2.2 and 2.3, in each cylinder a reciprocating piston 3.1, 3.2, 3.3 moves up and down. Furthermore, the internal combustion engine 1 includes a crankshaft 4 which is rotatably mounted via crankshaft bearings 5.1, 5.2, 5.3, 5.4. Crankshaft 4 is connected to associated reciprocating pistons 3.1, 3.2 and 3.3 via connecting rods 6.1, 6.2 and 6.3, respectively. For each connecting rod 6.1, 6.2 and 6.3, the crankshaft 4 has an eccentrically arranged crankshaft journal 7.1, 7.2 and 7.3. The large connecting rod eyelets 8.1, 8.2 and 8.3 of the connecting rods 6.1, 6.2, 6.3 are respectively supported on the associated crankshaft journals 7.1, 7.2 and 7.3. The small connecting rod eyelets 9.1, 9.2 and 9.3 of the connecting rods 6.1, 6.2, 6.3 are respectively supported on the piston pins 10.1, 10.2 and 10.3 and are thus pivot...

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 relates to a longitudinally-adjustable connecting rod for an internal combustion engine. The rod comprises a first connecting rod part, a second connecting rod part and at least one cylinder-piston unit for controlling the first connecting rod part relative to the second connecting rod part. The cylinder-piston unit comprises a housing with a cylinder bore, an adjusting piston that can be longitudinally moved in the cylinder bore, at least one pressure chamber provided in the cylinder bore, and a rotation-lock device. The rotation-lock device for fixing the angular position of the piston pin to the crankshaft journal is arranged on the first connecting rod part and extends with at least one securing arm in the longitudinal direction along a guide on the second connecting rodpart. The invention also relates to an internal combustion engine comprising said type of longitudinally-adjustable connecting rod and to the use of said type of cylinder-piston unit for a longitudinally-adjustable connecting rod of an internal combustion engine.

Description

technical field [0001] The invention relates to a length-adjustable connecting rod for an internal combustion engine with a first connecting rod part, a second connecting rod part and at least one cylinder-piston unit for adjusting the first connecting rod part relative to the second connecting rod part. A connecting rod part, wherein the cylinder-piston unit comprises: a housing with a cylinder bore, an adjusting piston arranged longitudinally movable in the cylinder bore, at least one pressure chamber arranged in the cylinder bore, and an anti-twist. The invention also relates to an internal combustion engine with such a length-adjustable connecting rod and to the use of a cylinder-piston unit for a length-adjustable connecting rod for an internal combustion engine. Background technique [0002] The thermal efficiency of an internal combustion engine, especially a gasoline engine, depends on the compression ratio ε, ie the ratio of the total volume before compression to 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
Patent Type & Authority Applications(China)
IPC IPC(8): F02B75/04
CPCF02B75/045F02D15/02F15B15/1414F16C7/06
Inventor 斯蒂芬尼·雷姆凯·阿伦斯麦特·黑勒佐尔坦·里巴
Owner IWIS MOTORSYSTEME GMBH & CO KG
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