CN1027553C - Fan auto-clutched automobile water pump - Google Patents
Fan auto-clutched automobile water pump Download PDFInfo
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- CN1027553C CN1027553C CN 89106615 CN89106615A CN1027553C CN 1027553 C CN1027553 C CN 1027553C CN 89106615 CN89106615 CN 89106615 CN 89106615 A CN89106615 A CN 89106615A CN 1027553 C CN1027553 C CN 1027553C
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- Mechanical Operated Clutches (AREA)
Abstract
The present invention relates to an improvement of the existing automobile water pumps, which is not only a water pump, but also an automatic clutch for engine fans. The present invention is characterized in that a temperature sensor is arranged on the water pump, when water temperature in a pump cavity is increased, a temperature sensitive material in the temperature sensor expands caused by heat, so friction members between a pulley and the fan are applied with axial direction force and mutual press, and the fan rotates. The automatic clutch of automobile fans is one of four energy saving means of automobiles in foreign countries. According to the research of Chinese automobile scientific research departments, if all Chinese trucks can realize the automatic clutch of the fans, a plurality of hundred thousand of oil can be saved each year, and the present invention has the economic value of over a plurality of billion yuan.
Description
The present invention relates to the automobile engine cooling water pump technical field, a kind of have a new automobile water pump that makes cooling fan automatic clutch function.
Studying data at home and abroad shows, automobile engine power 5-10% consumes on fan, yet the time of actual demand fan work only is 5-15% to automobile under steam, face the energy in the world today day by day when the shortage, the oil consumption that the fan idle work is caused has to cause the very big attention of automotive industry, abroad unexpectedly the fan automatic clutch is classified as first of the truck four big conservation measuress.According to the mensuration of China automotive research department, the fuel saving ratio of east wind EQ140 automobile fan clutch is up to 8%.More than 70 ten thousand of the existing Dongfeng Automobile in the whole nation, as whole realization clutches, its year fuel-economizing is no less than 400,000 tons, and economic value reaches 1,000,000,000 yuan.
The prior art auto pump can only the pumping cooling water, and does not possess the function that makes the fan automatic clutch.In recent years, some producers introductions of foreign technology development fan clutches, wherein with the silicone oil formula for the most typical.This is the clutch of a kind of device between auto pump and fan, and bimetal coil temp-sensitive apparatus is regulated silicone oil automatically with extraneous gas flow temperature variation and entered flow in the active chamber on it, makes fan work by the shear action to silicone oil.The shortcoming of silicone oil formula clutch is: silicone oil easily leaks, the big and easy clay of bimetal coil technology difficulty and losing efficacy, the high and accurate control water temperature etc. of cost.
The objective of the invention is, provide a kind of not only boundary dimension and mounting type identical, and possess the motor car engine water pump of fan clutch function with raw water pump.
The scheme that realizes above-mentioned purpose is, being equipped with one at water pump spindle impeller end endoporus is heated and produces the temp-sensitive apparatus of expansive force, temperature sensing material in the temp-sensitive apparatus is the bigger material of a kind of thermal coefficient of expansion, it is contained in the body, seal in case stopping leak leaks by elastomer diaphragm, one catch bar is arranged in order to transmit the expansive force of temp-sensitive apparatus in the water pump spindle endoporus, between temp-sensitive apparatus and the friction pair clutch mechanism force storage device is arranged, wherein holding the power spring and holding the power bar is enclosed within on the catch bar successively, and the two ends circle that holds the power spring is bearing in the catch bar shaft shoulder respectively and holds on the power rod end surface, also has a shaft shoulder at the catch bar head, its both sides end face respectively with hold the power rod end surface and Returnning spring end circle joins, with holding power bar annular groove outside is that the footpath upwards has a positioning rod accordingly, and it snaps in the power of holding power burr groove and is realized by the compressive force of screw adjusted spring.
The another kind of scheme that realizes above-mentioned purpose is, three temp-sensitive apparatuss are arranged on the pump case, wherein temperature sensing material is the bigger material of a kind of thermal coefficient of expansion, it is contained in the body, seal in case stopping leak leaks by elastomer diaphragm, temp-sensitive apparatus is transmitted by the catch bar in the minor axis through hole by thermogenetic expansive force, and minor axis and body are coupled to one.One force storage device is arranged between temp-sensitive apparatus and the friction pair, its formation is axially to have a promotion dish, 3-6 only to be positioned at the power of holding bar in the belt pulley spoke, one side of bar respectively is with 3-6 and only holds power spring and Returnning spring, the opposite side that holds the power bar is connected with friction cone, radially have and hold the corresponding positioning rod spring of power rod outer surface annular groove, screw, positioning rod blocks the power of holding power burr groove and is realized by the pressure of screw adjusted spring.
When water temperature rose to a certain temperature in the pump chamber, it was heated and the expansive force that produces makes that friction pair combines then fan rotation between belt pulley and the fan hub.Otherwise after water temperature descended, the temperature sensing material volume dwindled gradually, and under action of reset spring, friction pair separates, then fan idle running.Because volumetric expansion or cooling volume contraction speed were slow when temperature sensing material was heated, thereby a force storage device is arranged, realize that the moment clutch is to significantly reduce the wearing and tearing of friction pair between temp-sensitive apparatus and clutch mechanism.
Advantage of the present invention: easy for installation, compact structure boundary dimension is little, cost is low, control water temperature accurately, the various vehicles of this exoadaptation.
Fig. 1. the embodiment of the invention one structure principle chart.
Fig. 2. the embodiment of the invention two structure principle charts.
Fig. 3. be a kind of structural type of temp-sensitive apparatus.
Fig. 4. for holding the force mechanisms schematic diagram.
With reference to Fig. 1, Fig. 3, Fig. 4, process through hole in the water pump spindle, the temp-sensitive apparatus of one expanded by heating is housed at water pump spindle impeller end endoporus, temperature sensing material in the temp-sensitive apparatus (2) is a wax, it is the bigger temperature sensing material of the swollen long coefficient of a kind of heat, it is contained in the body (copper sheathing) (1), by elastomer diaphragm (3) sealing against leakage.The expansive force that produces when temp-sensitive apparatus is heated is transmitted by the catch bar that places water pump spindle A endoporus (6).When the water temperature that enters pump chamber rises to a certain temperature, wax (2) melts and follows volumetric expansion, its expansive force is heaved diaphragm (3), evenly passes to catch bar for making expansive force, pressure oil (5) is arranged between diaphragm and catch bar and prevent the piston (8) that oil leaks from catch bar.Between temp-sensitive apparatus and friction clutch mechanism, a force storage device is arranged, wherein hold power spring (12) and hold power bar (11) and be enclosed within successively on the catch bar (6), the two ends circle that holds the power spring is bearing in the catch bar shaft shoulder respectively and holds on the power rod end surface, also has a shaft shoulder on the catch bar top, its both sides end face respectively with hold power rod end surface and Returnning spring (14) end circle and join, with hold power bar (11) annular groove outside and be accordingly, upwards there is positioning rod (17) in the footpath, and it blocks the power of holding power rod outer surface annular groove and is realized by screw (19) Regulation spring (18) compressive force.Therefore, when temp-sensitive apparatus is heated the generation expansive force, its catch bar (6) compresses simultaneously and holds power spring (12) and Returnning spring (14), when compressive force overcomes positioning rod (17) and blocks the power of annular groove, holding power bar (11) makes by " bullet " forward, positioning rod (17) is radially outer to be moved, and makes friction plate (21) combination through steel ball (16), and then fan rotates with belt pulley (7).Otherwise when water temperature descended, wax solidified gradually, volume-diminished, because positioning rod blocks and holds power burr groove, thereby hold spring and gradually catch bar is rolled back, to one regularly, Returnning spring will hold the power bar and push back cloud, positioning rod falls into and holds power burr groove, and then friction pair separates, fan idle running.Nut (13) Regulation spring (14) reposition force.
With reference to Fig. 2, Fig. 3, Fig. 4, three temp-sensitive apparatuss are arranged on the water pump shell, wherein the temperature-sensitive body contacts with cooling liquid in the pump chamber.Temperature sensing material is wax (2), is contained in the body (1), by elastomer diaphragm (3) sealing, pressure oil (5) and piston (8) is arranged successively between catch bar (6) in minor axis A through hole and the diaphragm.Minor axis A and body (1) connect one.One force storage device is arranged between temp-sensitive apparatus and the friction pair, and its formation is that a promotion dish (10) is axially arranged.3-6 only is positioned at the power of the holding bar (11) in the belt pulley spoke, and a side of bar respectively is with 3-6 and only holds power spring (12), and Returnning spring (14), and the opposite side and the friction cone (22a) that hold the power bar connect, and friction cone is moved axially with the power bar of holding.Radially have and hold the corresponding positioning rod of power rod outer surface annular groove (17) spring (18), screw (19).Between promotion dish (10) in the force storage device and the catch bar (6) in the temp-sensitive apparatus by a thrust-bearing B.Wax (2) fusing, volumetric expansion in the temp-sensitive apparatus when the pump chamber water temperature raises, rubber seal diaphragm (3) is heaved and compressive pressure oil (5), promote thereupon piston (8), and and then catch bar (6), bearing B, promotion dish (10) and spring (12) and (14), to a certain moment, the power masthead of holding is opened the positioning rod reach, so the friction cone of Lian Jieing (20a) combines with the conical surface of fan hub (21a) with it, then fan begins rotation.Otherwise, when water temperature descends, holding under the power spring action at Returnning spring, the power bar of holding resets, and the annular groove bar awl end that is positioned blocks it on, and friction pair separates, and then fan dallies.Fan hub (21a) is positioned on the water pump spindle (4) by bearing (9).
Claims (2)
1, a kind of automobile's pump with clutch for automatically starting fan is made up of pump case, bearing, impeller, belt pulley and fan hub, it is characterized in that:
A) in the water pump spindle A through hole is arranged;
B) being equipped with one at water pump spindle impeller end endoporus is heated and produces the temp-sensitive apparatus of expansive force, temperature sensing material in the temp-sensitive apparatus (2) is the bigger material of a kind of thermal coefficient of expansion, it is contained in the body (1), in case stopping leak leaks, a catch bar (6) is arranged by elastomer diaphragm (3) sealing in the water pump spindle A endoporus in order to transmit the expansive force of temp-sensitive apparatus;
C) between temp-sensitive apparatus and the friction pair clutch mechanism force storage device is arranged, wherein hold power spring (12) and hold power bar (11) and be enclosed within successively on the catch bar (6), and the two ends circle that holds the power spring is bearing in the catch bar shaft shoulder respectively and holds on the power rod end surface, also has a shaft shoulder at the catch bar head, its both sides end face respectively with hold power rod end surface and Returnning spring (14) end circle and join, with holding power (11) annular groove outside is that the footpath upwards has a positioning rod (17) accordingly, and it snaps in the power of holding power burr groove and is realized by the compressive force of screw (19) Regulation spring (18).
2, a kind of automobile's pump with clutch for automatically starting fan is made up of pump case, axle, bearing, impeller, belt pulley and fan hub, it is characterized in that:
A) three temp-sensitive apparatuss are arranged on the pump case, wherein temperature sensing material (2) is the bigger material of a kind of thermal coefficient of expansion, it is contained in the body (1), seal in case stopping leak leaks by elastomer diaphragm (3), temp-sensitive apparatus is transmitted by the catch bar (6) in the minor axis A through hole by thermogenetic expansive force, and minor axis A and body (1) are coupled to one;
B) temp-sensitive apparatus and friction pair this force storage device is arranged, its formation is axially to have a promotion dish (10), 3-6 only to be positioned at the power of holding bar (11) in belt pulley (7) spoke, one side of bar respectively is with 3-6 and only holds power spring (12) and Returnning spring (14), the opposite side that holds the power bar connects with friction cone (22a), radially have and hold the corresponding positioning rod of power rod outer surface annular groove (17) spring (18), screw (19), positioning rod blocks the power of holding power burr groove and is realized by the compressive force of screw (19) Regulation spring (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89106615 CN1027553C (en) | 1989-08-29 | 1989-08-29 | Fan auto-clutched automobile water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89106615 CN1027553C (en) | 1989-08-29 | 1989-08-29 | Fan auto-clutched automobile water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1049895A CN1049895A (en) | 1991-03-13 |
| CN1027553C true CN1027553C (en) | 1995-02-01 |
Family
ID=4856809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89106615 Expired - Fee Related CN1027553C (en) | 1989-08-29 | 1989-08-29 | Fan auto-clutched automobile water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027553C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305253A (en) * | 2011-03-01 | 2012-01-04 | 吴小杰 | Mechanical brake |
| CN102705059A (en) * | 2012-05-08 | 2012-10-03 | 徐向丽 | Mechanical automatic clutch cooling water pump for internal-combustion engine |
| CN103422966B (en) * | 2013-07-24 | 2015-07-08 | 三一重机有限公司 | Fan clutch and engineering machine |
| CN107956572B (en) * | 2017-12-06 | 2023-07-11 | 东风商用车有限公司 | Silicone oil fan clutch control device and control method thereof |
| CN113982737A (en) * | 2021-11-17 | 2022-01-28 | 李燕莉 | Automobile water pump |
-
1989
- 1989-08-29 CN CN 89106615 patent/CN1027553C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1049895A (en) | 1991-03-13 |
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| CF01 | Termination of patent right due to non-payment of annual fee |