CN101793177A - Engine connecting rod structure - Google Patents
Engine connecting rod structure Download PDFInfo
- Publication number
- CN101793177A CN101793177A CN 201010136491 CN201010136491A CN101793177A CN 101793177 A CN101793177 A CN 101793177A CN 201010136491 CN201010136491 CN 201010136491 CN 201010136491 A CN201010136491 A CN 201010136491A CN 101793177 A CN101793177 A CN 101793177A
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- China
- Prior art keywords
- connecting rod
- small
- head end
- lubricating
- engine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention provides an engine connecting rod structure, wherein a connection lubricating structure is free from a connecting rod bushing or a liner, smooth tiny oil storage recesses are manufactured at inner surfaces of a large head end and a small head end of the connecting rod in order to form a lubricating oil storing structure, floating lubrication effect is generated by storing the lubricating oil to achieve the purpose of lubricating a crankshaft connecting rod, and the large head end and the small head end of the connecting rod are directly fit with the crankshaft connecting rod. By adopting the structure according to the invention, one process of manufacturing and assembling parts is left out while the lubricating effect of the connecting rod is ensured, the cost and quality risk of products are lowered, and simultaneously, the weight and size of the connecting rod are decreased and friction loss of the engine is lessend.
Description
Technical field
The present invention relates to the connecting rod technical field of internal-combustion engine, be specifically related to the improvement of the connecting rod lubrication structure of motor.
Background technique
The connecting rod of motor is bearing periodically variable bending and torsional load that inner air pressure, reciprocal inertia force and rotating inertia force in the cylinder cause in the operation process of motor.Wherein the major part of connecting rod, little head end are owing to work specific pressure height, and the Sliding velocity height is the harshest position of operating conditions in the internal-combustion engine, need be lubricated this two position.
Traditional connecting rod lubrication structure is to hold internal surface increase bearing shell to set up lubricated at connnecting rod big end end internal surface and microcephaly, used bearing shell all is the thin-wall part of interchangeable highi degree of accuracy multiple layer metal, require its material that enough fatigue strength should be arranged, good antifriction quality and corrosion resistance are arranged.Though this structure can effectively solve the lubrication problem of connecting rod, have more manufacturing, the assembly process of component from structure, increased the cost and the quality risk of product; And to the material of bearing shell with make and require to have increased product cost all than higher; The weight and the size of connecting rod are also increased thus, strengthen the rotary inertia of connecting rod.
Summary of the invention
The present invention is directed to the prior art above shortcomings, propose a kind of engine connecting rod structure, improve the design of its lubricating structure, reach the minimizing component, reduce manufacture difficulty, alleviate the purpose of connecting rod weight.
Technological scheme of the present invention is as follows:
A kind of engine connecting rod structure, described connecting rod one end is the connnecting rod big end end, an end is the connecting rod small end end.It is characterized in that: cancellation connecting rod bearing shell or lining in the connecting rod lubrication structure, internal surface manufacturing at described connnecting rod big end end and connecting rod small end end has smooth small oil storage pit respectively, form the structure of storage lubricant oil, produce the lubrication effect that floats by storing lubricant oil, reach the purpose of lubricated connecting bar and crankshaft, described connnecting rod big end end and connecting rod small end end directly cooperate with crank-shaft link neck.
Described small oil storage pit is random distribution at the internal surface of connnecting rod big end end and connecting rod small end end.
Adopt structure of the present invention, when guaranteeing the connecting rod lubrication effect,, reduce manufacturing, the assembly process of component, reduced the cost and the quality risk of product, also alleviated connecting rod weight simultaneously, reduced size, reduce the engine friction loss.
Description of drawings
Fig. 1 is a main schematic representation of the present invention;
Fig. 2 lubrication principle schematic representation of the present invention
Embodiment
Describe structure of the present invention in detail below in conjunction with accompanying drawing:
Referring to Fig. 1, the connecting rod lubrication structure of this motor is exactly to have cancelled bearing on traditional connecting rod lubrication structure, by at connnecting rod big end end 1, a large amount of smooth small oil storage pit 2 of connecting rod small end end 4 internal surface manufacturings, store lubricant oil and produce the lubrication effect that floats.The size of small oil storage pit 2 is preferably below the millimeter level.
As seen from Figure 2, after the connecting rod internal surface produces irregular small oil storage pit, between the internal surface of the connnecting rod big end end 1 of connecting rod 4 and connecting rod small end end 3 and crank-shaft link neck 6, there is oil droplet 5, small fluid storage back in a large amount of small oil storage pits forms microcavity floats crank-shaft link neck 6, produce the hydrodynamiclubrication effect, reach lubricated purpose.
Claims (2)
1. engine connecting rod structure, described connecting rod one end is connnecting rod big end end (1), an end is connecting rod small end end (3); It is characterized in that: the internal surface manufacturing at described connnecting rod big end end (1) and connecting rod small end end (3) has smooth small oil storage pit (2) respectively, forms the structure of storage lubricant oil; Described connnecting rod big end end (1) and connecting rod small end end (3) directly cooperate with crank-shaft link neck.
2. engine connecting rod structure according to claim 1 is characterized in that: described small oil storage pit (2) is random distribution at the internal surface of connnecting rod big end end (1) and connecting rod small end end (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010136491 CN101793177A (en) | 2010-03-30 | 2010-03-30 | Engine connecting rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010136491 CN101793177A (en) | 2010-03-30 | 2010-03-30 | Engine connecting rod structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101793177A true CN101793177A (en) | 2010-08-04 |
Family
ID=42586065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010136491 Pending CN101793177A (en) | 2010-03-30 | 2010-03-30 | Engine connecting rod structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101793177A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685803A (en) * | 2018-07-04 | 2020-01-14 | 伊希欧1控股有限公司 | Connecting rod with eccentric wheel adjusting device for internal combustion engine with variable compression ratio |
| CN112963341A (en) * | 2021-02-03 | 2021-06-15 | 上海聚力源流体科技有限公司 | Connecting rod for pump and assembling method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674237A (en) * | 1992-08-26 | 1994-03-15 | Toyota Motor Corp | Bearing structure for internal cobustion engine |
| CN1186172A (en) * | 1996-12-06 | 1998-07-01 | Lg电子株式会社 | Connection rod of hermetically sealed compressor |
| JPH11201166A (en) * | 1998-01-13 | 1999-07-27 | Daido Metal Co Ltd | Bearing bush for piston pin for connecting rod |
| CN1265179A (en) * | 1997-07-28 | 2000-08-30 | 大众汽车有限公司 | Connecting rod with tight friction-bearing layer |
| US20040228554A1 (en) * | 2003-05-15 | 2004-11-18 | Daido Metal Company Ltd. | Sliding member |
| EP1507088A1 (en) * | 2003-08-13 | 2005-02-16 | Nissan Motor Company, Limited | Structure for connecting piston to crankshaft |
| CN1920314A (en) * | 2006-09-16 | 2007-02-28 | 田泽华 | Crankshaft bush and connecting rod bush of internal combustion engine |
| WO2007031160A1 (en) * | 2005-09-09 | 2007-03-22 | Thyssenkrupp Automotive Ag | Bearing arrangement |
-
2010
- 2010-03-30 CN CN 201010136491 patent/CN101793177A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674237A (en) * | 1992-08-26 | 1994-03-15 | Toyota Motor Corp | Bearing structure for internal cobustion engine |
| CN1186172A (en) * | 1996-12-06 | 1998-07-01 | Lg电子株式会社 | Connection rod of hermetically sealed compressor |
| CN1265179A (en) * | 1997-07-28 | 2000-08-30 | 大众汽车有限公司 | Connecting rod with tight friction-bearing layer |
| JPH11201166A (en) * | 1998-01-13 | 1999-07-27 | Daido Metal Co Ltd | Bearing bush for piston pin for connecting rod |
| US20040228554A1 (en) * | 2003-05-15 | 2004-11-18 | Daido Metal Company Ltd. | Sliding member |
| EP1507088A1 (en) * | 2003-08-13 | 2005-02-16 | Nissan Motor Company, Limited | Structure for connecting piston to crankshaft |
| WO2007031160A1 (en) * | 2005-09-09 | 2007-03-22 | Thyssenkrupp Automotive Ag | Bearing arrangement |
| CN1920314A (en) * | 2006-09-16 | 2007-02-28 | 田泽华 | Crankshaft bush and connecting rod bush of internal combustion engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685803A (en) * | 2018-07-04 | 2020-01-14 | 伊希欧1控股有限公司 | Connecting rod with eccentric wheel adjusting device for internal combustion engine with variable compression ratio |
| CN112963341A (en) * | 2021-02-03 | 2021-06-15 | 上海聚力源流体科技有限公司 | Connecting rod for pump and assembling method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100804 |