CN2918748Y - Internal combustion engine thermal fan clutch - Google Patents
Internal combustion engine thermal fan clutch Download PDFInfo
- Publication number
- CN2918748Y CN2918748Y CN 200620012110 CN200620012110U CN2918748Y CN 2918748 Y CN2918748 Y CN 2918748Y CN 200620012110 CN200620012110 CN 200620012110 CN 200620012110 U CN200620012110 U CN 200620012110U CN 2918748 Y CN2918748 Y CN 2918748Y
- Authority
- CN
- China
- Prior art keywords
- fan
- magnetic
- disc
- magnetic conductive
- hub
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a cooling fan clutch for an internal combustion engine, which comprises a fan shaft, a shape memory alloy spring, a magnetic conductive disc, a driving disc, a return spring, a fan hub, a magnetic pole, a plurality of bearings and so on. The hub, the driving disc and the magnetic conductive disc are orderly arranged on the fan shaft. The working principle is that when the temperature of the air flow behind the radiator of the internal combustion engine is lower than the setting temperature, the magnetic conductive disc is covered at the exterior of the magnetic pole, forming a closed magnetic circuit with the magnetic pole. The magnetic force between the magnetic pole on the driving disc and a magnetic conductive bump on the fan hub is very small, and the fan speed is low. When the temperature is higher than the setting temperature, the return spring pushes the magnetic conductive disc to move left, a closed magnetic circuit is formed between the magnetic pole and the magnetic conductive bump on the fan hub, the magnetic force between the magnetic pole on the active disc and the magnetic conductive bump on the fan hub is higher, the fan speed is higher, the air quantity is larger, thus the objective of automatic change of the fan air quantity according to the cooling requirement of the internal combustion engine is achieved.
Description
Technical field
The utility model belongs to that vapour rubs and the accessory technical field.
Background technique
Internal-combustion engine all is equipped with radiation fan for strengthening the radiating effect of radiator; Fan consumes the 5-10% of power of IC engine approximately.Test shows that automobile needs the time of fan work less than 20% in driving process; Fan work does harm rather than good internal-combustion engine At All Other Times.Many for this reason internal-combustion engines are equipped with the fan of being with silicon oil filled fan clutch, and by the viscosity transferring power of silicone oil, the rotating speed of control fan to reduce power, the saving fuel oil that fan consumes, reduces fan noise.
But this fan clutch structure is comparatively complicated, causes power not transmit when silicone oil leaks, and makes the fan clutch cisco unity malfunction.The purpose of this utility model provides the novel fan clutch of a kind of simple structure, easily manufactured, reliable operation.
Summary of the invention
Structure of the present utility model is made up of fan shaft, driving disc, shape memory alloy spring, return spring, fan hub, magnetic pole, magnetic conductive disk, fan shaft, bearing etc.Wherein fan hub is that disc is loaded on the fan shaft by bearing, is shaped on magnetic conduction projection (also available magnetic pole replaces when fan power is big) on the fan hub; Driving disc is a disc, coheres somely to magnetic pole on its cylindrical, adopts interference fit to be loaded on the fan shaft; Magnetic conductive disk is a disc, be enclosed within on the fan shaft, outer rim annulus part and can endwisely slip along fan shaft between fan hub and driving disc, axial position is limited by shape memory alloy spring and return spring, and the spline pin is used to prevent that magnetic conductive disk from rotating relative to driving disc; Shape memory alloy spring is enclosed within on the positioning screwn of fan shaft left end (also can place between magnetic conductive disk and the driving disc), is used for temperature-sensitive and promotes magnetic conductive disk sliding to the right; Return spring is enclosed within and is positioned at the magnetic conductive disk right-hand member on the fan shaft, is used to promote magnetic conductive disk and slides left.
Working principle: during internal combustion engine, fan shaft rotates, and driving disc rotates with fan shaft; When the gas flow temperature behind the radiator was lower than setting temperature, shape memory alloy spring was in stretched condition, made magnetic conductive disk be in right position, and magnetic conductive disk outer rim annulus partly is enclosed within the magnetic pole outside, forms closed magnetic circuit with magnetic pole; On the driving disc on magnetic pole and the fan hub magnetic force between the magnetic conduction projection very little, therefore when driving disc rotated with fan shaft, the rotating speed of fan was low, air quantity is little.When the gas flow temperature behind the heat radiator of internal-combustion engine is higher than setting temperature, shape memory alloy spring shrinks, return spring promotes magnetic conductive disk and moves to left, and forms closed magnetic circuit between the magnetic conduction projection on magnetic pole and the fan hub at this moment, makes the magnetic force between driving disc magnetic pole and the fan hub magnetic conduction projection become big.Therefore when driving disc and fan shaft rotation, drive rotation speed of the fan and increase, air quantity strengthens; Heat radiation requires the purpose of change air quantity of fan automatically according to internal-combustion engine thereby reach.Because adopt shape memory alloy spring as control unit, its working life is very long, the reliability of fan clutch work is very high.
Description of drawings
Accompanying drawing is a tectonic maps of the present utility model, 1 positioning screwn, 2 fan shafts, 3 return springs, 4 driving discs, 5 magnetic conductive disks, 6 magnetic poles, 7 fan hubs, 8 fans, 9 magnetic conduction projections, 10 bearings, 11 construction bolt holes, 12 spline pins, 13 shape memory alloy springs among the figure.
Embodiment
The all available common process technology of part of the present utility model is made; Fan hub, driving disc, magnetic conductive disk, return spring are contained on the fan shaft in proper order, and shape memory alloy spring is placed on the positioning screwn that is screwed in the fan shaft left end, are loaded on the internal-combustion engine charging pump axle by the construction bolt hole.
Claims (1)
- A kind of internal-combustion engine radiation fan clutch, it is characterized in that: fan hub, driving disc, magnetic conductive disk are contained on the fan shaft in proper order; Wherein, fan hub is a disc, is loaded on the fan shaft by bearing, is shaped on the magnetic conduction projection on the fan hub; Driving disc is a disc, adopts interference fit to be loaded on the fan shaft, coheres some to magnetic pole on its cylindrical; Magnetic conductive disk is a disc, is enclosed within on the fan shaft, and can endwisely slips along fan shaft, and its outer rim annulus part is between fan hub magnetic conduction projection and driving disc magnetic pole; Shape memory alloy spring is enclosed within on the positioning screwn, is positioned at the magnetic conductive disk left end; Return spring is enclosed within on the fan shaft, is positioned at the magnetic conductive disk right-hand member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620012110 CN2918748Y (en) | 2006-04-18 | 2006-04-18 | Internal combustion engine thermal fan clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620012110 CN2918748Y (en) | 2006-04-18 | 2006-04-18 | Internal combustion engine thermal fan clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2918748Y true CN2918748Y (en) | 2007-07-04 |
Family
ID=38216565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620012110 Expired - Fee Related CN2918748Y (en) | 2006-04-18 | 2006-04-18 | Internal combustion engine thermal fan clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2918748Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508016A (en) * | 2016-02-19 | 2016-04-20 | 太仓钰丰机械工程有限公司 | Manually-locked temperature control fan clutch |
| CN105508017A (en) * | 2016-02-19 | 2016-04-20 | 太仓钰丰机械工程有限公司 | Simple fan clutch |
| CN108696096A (en) * | 2018-06-26 | 2018-10-23 | 江苏磁谷科技股份有限公司 | A kind of novel permanent magnetic coupler |
-
2006
- 2006-04-18 CN CN 200620012110 patent/CN2918748Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508016A (en) * | 2016-02-19 | 2016-04-20 | 太仓钰丰机械工程有限公司 | Manually-locked temperature control fan clutch |
| CN105508017A (en) * | 2016-02-19 | 2016-04-20 | 太仓钰丰机械工程有限公司 | Simple fan clutch |
| CN108696096A (en) * | 2018-06-26 | 2018-10-23 | 江苏磁谷科技股份有限公司 | A kind of novel permanent magnetic coupler |
| CN108696096B (en) * | 2018-06-26 | 2023-07-07 | 江苏磁谷科技股份有限公司 | Permanent magnet coupler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070704 |