CN204200348U - A kind of engine-cooling system and filtrating equipment thereof - Google Patents

A kind of engine-cooling system and filtrating equipment thereof Download PDF

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Publication number
CN204200348U
CN204200348U CN201420464125.5U CN201420464125U CN204200348U CN 204200348 U CN204200348 U CN 204200348U CN 201420464125 U CN201420464125 U CN 201420464125U CN 204200348 U CN204200348 U CN 204200348U
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China
Prior art keywords
cooling liquid
filtrating equipment
liquid inlet
spool
pressure valve
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CN201420464125.5U
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杨栋
孙建伟
王启峰
冀丽琴
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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Abstract

The utility model provides a kind of engine-cooling system and filtrating equipment thereof, can according to the working state automatic on-off cooling liquid inlet of motor, ensure that in the process of replacing cooling water filter, cooling water does not outflow, and avoids befouling environment and waste, has saved cost.Described filtrating equipment comprises the filter seat with cooling liquid inlet and cooling liquid outlet, and the coolant clarifier be arranged in described filter seat, also comprise pressure valve, described pressure valve can be opened under the promotion of high-pressure coolant, and cooling liquid inlet described in shutoff and described cooling liquid outlet after pressure is released.When the engine operates, the water that water pump exports produces the pressure promoting pressure valve, to open, pressure valve to open cooling liquid inlet and outlet; When needing to change coolant clarifier, engine stop operation, now acts on the pressure Spontaneous release of pressure valve, then pressure valve is by cooling liquid inlet and cooling liquid outlet shutoff, prevents cooling water from outflowing, and avoids befouling environment and waste.

Description

A kind of engine-cooling system and filtrating equipment thereof
Technical field
The utility model relates to engine cooling technical field, particularly relates to a kind of filtrating equipment of engine-cooling system.The utility model also relates to a kind of engine-cooling system with above-mentioned filtrating equipment.
Background technique
Coolant clarifier is used for the impurity in filtering engine cooling liquid, can also add chemical composition, to improve the cooling liquid performance of motor in engine-cooling system simultaneously.Need after using a period of time to change coolant clarifier, to ensure its operational safety.
Filtrating equipment of the prior art does not install any device usually additional, and when changing coolant clarifier, cooling liquid inlet is in opening state, then cooling liquid easily outflows, and pollutes and wastes.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of filtrating equipment in a kind of embodiment of engine-cooling system in prior art; Fig. 2 is the structural representation of filtrating equipment in another kind of embodiment of engine-cooling system in prior art.
Filtrating equipment of the prior art comprises filter seat 1 ' and coolant clarifier 2 ', filter seat 1 ' adds a valve 11 ', valve 11 ' is equivalent to a switch, when engine maintenance maintains, manually operate and valve 11 ' is closed, then valve 11 ' is by cooling liquid inlet shutoff, to prevent cooling liquid from outwards flowing out when changing coolant clarifier 2 ', and the waste and pollution avoiding cooling liquid to outflow causing.
What is more important, when carrying out maintaining, necessary manually-operable valve 11 ', if operator forget carry out manually-operable, then valve 11 ' is inoperative, and cooling liquid inlet is still in opening state, causes cooling liquid to outflow.
And, when carrying out the replacing of coolant clarifier 2 ', usually filter seat 1 ' being abandoned altogether, causing whole replacement cost higher.
Therefore, how to design a kind of filtrating equipment of engine-cooling system, to realize the automatic on-off of cooling liquid inlet according to the situation of motor, in order to avoid cause cooling liquid to outflow when changing cooling water filter, thus it is cost-saving, avoiding befouling environment and waste, is the current technical issues that need to address of those skilled in the art.
Model utility content
The purpose of this utility model is to provide a kind of engine-cooling system and filtrating equipment thereof, can according to the working state automatic on-off cooling liquid inlet of motor, ensure that in the process of replacing cooling water filter, cooling water does not outflow, and avoids befouling environment and waste, has saved cost.
For solving the problems of the technologies described above, the utility model provides a kind of filtrating equipment of engine-cooling system, comprise the filter seat with cooling liquid inlet and cooling liquid outlet, and the coolant clarifier be arranged in described filter seat, also comprise pressure valve, described pressure valve can be opened under the promotion of high-pressure coolant, and cooling liquid inlet described in shutoff and described cooling liquid outlet after pressure is released.
Filtrating equipment of the present utility model is provided with pressure valve, this pressure valve can be opened under the promotion of high-pressure coolant, then when the engine operates, the cooling liquid that water pump exports can produce the pressure promoting pressure valve, pressure valve is opened, to open cooling liquid inlet and cooling liquid outlet, filtrating equipment of the present utility model is normally used; When coolant clarifier changed by needs, namely motor stops operation, and now acts on the pressure Spontaneous release of pressure valve, then pressure valve is by cooling liquid inlet and cooling liquid outlet shutoff, prevents cooling water from outflowing, and avoids befouling environment and waste.Visible, pressure valve of the present utility model its keying of Stress control by providing time engine operated, to adjust the open/close states of cooling liquid inlet and outlet at job state according to motor, without the need to manual operation, automaticity is higher, avoids artificial incorrect operation or forgets the various problems operating and bring.
Preferably, the spool extended before and after described pressure valve comprises and the Compress Spring being connected to described spool rear, described spool is with cooling liquid inlet described in its front end shutoff, and its rear has the barrier portion of cooling liquid outlet described in shutoff, and middle part has the contracting section that sectional area is less than described barrier portion.
The spool of pressure valve can extend front and back, and connect Compress Spring in the wings, then when not reaching predetermined pressure, spool is resisted against cooling liquid inlet by Compress Spring, and with the barrier portion shutoff cooling liquid outlet at its rear, the replacing of coolant clarifier now can be completed; When motor normal operation, the high pressure water that water pump exports acts on cooling liquid inlet, and then promotes spool backward, compresses Compress Spring further, spool is departed from and contacts with the sealing of cooling liquid inlet, opened by cooling liquid inlet; Meanwhile, the contracting section in the middle part of spool moves to the position corresponding with cooling liquid outlet, and the sectional area due to contracting section is less than barrier portion, so time cooling liquid outlet also corresponding unlatching.
Adopt said structure, can be realized the synchronous sealed of cooling liquid inlet and cooling liquid outlet by a pressure valve, its structure is simple, and it is more convenient to use, and improves operating efficiency.
Preferably, described filter seat also comprises the outlet flow be communicated with described cooling liquid outlet, stretches out, so that outlet flow described in described barrier portion shutoff before described spool is backward through described outlet flow.
Can also outlet flow be set, cooling liquid outlet can be delivered to the cooling water after filtration on the one hand to discharge, on the other hand can also by barrier portion barrier in outlet flow, the shutoff to cooling liquid outlet is realized by shutoff outlet flow, the reliability of its sealing is higher, the structure of filter seat itself can also be utilized to realize the sealing of cooling liquid inlet and cooling liquid outlet by a spool, simplify the structure of pressure valve.
Preferably, described barrier portion is arranged in cylindric, and its external diameter is more than or equal to the bore of described outlet flow, with outlet flow described in shutoff.
Preferably, the front end of described spool has and can seal the frustum of fitting with described cooling liquid inlet.
Preferably, described filter seat also has the inlet channel be communicated with described cooling liquid inlet, and the sidewall of described frustum can seal with the opening of described inlet channel fits.
The front end of pressure valve can also be set to frustum, to realize sealing with cooling liquid inlet better; And frustum can also its sidewall and inlet channel seal, and further increases sealing reliability, avoids cooling water outwards to be flowed out by inlet channel.
Preferably, the installation cavity extended before and after described filter seat is also provided with, described Compress Spring is connected with its rear end and described installation cavity, and described spool intercalation in described installation cavity, and can move forward and backward along described installation cavity.
On the one hand, installation cavity can improve certain leading role to Compress Spring, ensures the motion credibility of spool; On the other hand, by spool intercalation in installation cavity, the effect of protection spool can be played.
Preferably, described pressure valve also comprises valve seat, and described valve seat is screwed onto the rear end of described installation cavity; The two ends of described Compress Spring are connected with described valve seat and described barrier portion respectively, and flexible in the region that can limit at both; Described valve seat and described barrier portion all have the cavity holding described Compress Spring.
Can be positioned Compress Spring and spool by valve seat, to realize being connected with the reliable of filter seat.
The utility model also provides a kind of engine-cooling system, comprises the filtrating equipment described in above-mentioned any one.
Because engine-cooling system of the present utility model comprises the filtrating equipment described in above-mentioned any one, therefore the technique effect that the filtrating equipment described in above-mentioned any one produces all is applicable to engine-cooling system of the present utility model, repeats no more herein.
Preferably, described filter seat is shaped on engine body, and its structure is simple, is convenient to the independent replacing of coolant clarifier, avoids filter seat to change the waste of generation together, saved cost.
Accompanying drawing explanation
Fig. 1 Fig. 1 is the structural representation of filtrating equipment in a kind of embodiment of engine-cooling system in prior art;
Fig. 2 is the structural representation of filtrating equipment in another kind of embodiment of engine-cooling system in prior art;
Fig. 3 provides by the utility model the filtrating equipment of engine-cooling system in a kind of embodiment, and pressure valve is in the cross-sectional view of closed state;
The pressure valve that Fig. 4 is filtrating equipment shown in Fig. 3 is in the cross-sectional view of opening state.
In Fig. 1-2:
1 ' filter seat, 11 ' valve, 2 ' coolant clarifier
In Fig. 3-4:
1 filter seat, 11 cooling liquid inlets, 12 cooling liquid outlets, 13 outlet flow, 14 inlet channel, 15 installation cavitys, 2 coolant clarifiers, 3 pressure valve, 31 spools, 311 barrier portions, 312 contracting sections, 313 frustums, 32 Compress Springs, 33 valve seats, 4 adapters, 5 seal washers
Embodiment
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 3 and Fig. 4, Fig. 3 provides by the utility model the filtrating equipment of engine-cooling system in a kind of embodiment, and pressure valve is in the cross-sectional view of closed state; The pressure valve that Fig. 4 is filtrating equipment shown in Fig. 3 is in the cross-sectional view of opening state.
In a kind of embodiment, engine-cooling system of the present utility model comprises the filtrating equipment filtered cooling water, to filter the impurity in cooling liquid.
The filtrating equipment of engine-cooling system provided by the utility model comprises coolant clarifier 2 and filter seat 1, and coolant clarifier 2 is arranged in filter seat 1, and is connected with engine body by filter seat 1.Wherein, filter seat 1 comprises cooling liquid inlet 11 and cooling liquid outlet 12, the cooling liquid of engine-cooling system flows in coolant clarifier 2 via cooling liquid inlet 11, after coolant clarifier 2 filters, is discharged by the cooling liquid outlet 12 in filter seat 1.Filtrating equipment of the present utility model also comprises pressure valve 3, and this pressure valve 3 can be opened under a predetermined, and shutoff cooling liquid inlet 11 and cooling liquid outlet 12 after pressure is released, to prevent cooling liquid from outflowing, be convenient to the replacing carrying out coolant clarifier 2.
When completing the replacing of coolant clarifier 2, when needing to filter, the cooling liquid exported by water pump acts on cooling liquid inlet 11, and then promote pressure valve 3, when the pressure that pressure valve 3 is born reaches scheduled pressure value, pressure valve 3 is opened, and then discharge cooling liquid inlet 11 and cooling liquid outlet 12, both are made to be in opening state, then cooling liquid flows through cooling liquid inlet 11, coolant clarifier 2 and cooling liquid outlet 12 successively, backward outer outflow is filtered, whole engine-cooling system normal operation through coolant clarifier 2.
In the utility model, the cracking pressure (i.e. described predetermined pressure) of pressure valve 3 is provided by high-pressure coolant, and the cooling liquid that namely water pump exports produces larger surge pressure, and this pressure acts on pressure valve 3, can be promoted to open; When water pump quits work, cooling liquid no longer acts on pressure valve 3, and the pressure namely acting on pressure valve 3 stops operation and automatically discharges along with motor and water pump, and pressure valve 3 now can by cooling liquid inlet 11 and cooling liquid outlet 12 shutoff.
Those skilled in the art are to be understood that, the control mode of pressure valve 3 is various, the pressure being not limited to utilize the cooling liquid of cooling liquid inlet 11 to produce controls, pressure valve 3 can also be set to the motor-operated control valves such as solenoid valve, then it is connected with motor or water pump signal, to control its open/close states according to the handling situations of motor, to open and close cooling liquid inlet 11 and cooling liquid outlet 12.
Pressure valve 3 is specifically as follows one-way valve, can be included in the spool 31 that fore-and-aft direction extends and the Compress Spring 32 being connected to spool 31 rear, then, under the elastic-restoring force effect of Compress Spring 32, promote spool 31 with its front end shutoff cooling liquid inlet 11; The rear of spool 31 also has the barrier portion 311 for shutoff cooling liquid outlet 12, and middle part has the contracting section 312 that sectional area is less than barrier portion 311.Under nature, Compress Spring 32 promotes spool 31 and moves forward, and is supported the front end of spool 31 and fits in cooling liquid inlet 11, and promotes barrier portion 311 and move to the position corresponding with cooling liquid outlet 12, so that the cold liquid outlet 12 of barrier portion 311 shutoff, as shown in Figure 3.When the cooling liquid that water pump exports acts on cooling liquid inlet 11, this pressure is delivered to spool 31, and produce the predetermined pressure promoting spool 31 and move, then move after spool 31, further compression Compress Spring 32, the front end of spool 31 and cooling liquid inlet 11 are disengaged, and then cooling liquid inlet 11 is discharged; Simultaneously, move after the relative cooling liquid outlet 12 in barrier portion 311, contracting section 312 in the middle part of spool 31 moves to the position corresponding with cooling liquid outlet 12, barrier portion 311 and cooling liquid outlet 12 disengage, sectional area due to contracting section 312 is less than barrier portion 311, therefore cooling liquid outlet 12 can be discharged, as shown in Figure 4.
Described front and back with the flow direction of cooling liquid for reference, the direction that filter seat 1 is provided with cooling liquid inlet 11 is front, accordingly, after the direction arranging cooling liquid outlet 12 is, spool 31 extends at fore-and-aft direction and refers to that spool 31 is extended by the direction of cooling liquid inlet 11 towards cooling liquid outlet 12.
Visible, the spool 31 of pressure valve 3 can extend at fore-and-aft direction, then get final product shutoff simultaneously by a spool 31 or open cooling liquid inlet 11 and cooling liquid outlet 12, its structure is simple, it is more convenient to use, and without the need to arranging special controlling component, the pressure relying on cooling liquid inlet 11 place to produce and controllable valve core 31 automatic on-off.During due to engine operation, cooling liquid can be carried to cooling liquid inlet 11, therefore the automatic unlatching of spool 31 can be realized, when the engine is not operating, water pump stops carrying cooling liquid to cooling liquid inlet 11, and the pressure now acting on spool 31 disappears automatically, spool 31 is self-closed under the spring-back force effect of Compress Spring 32, without the need to manual operation, that is, spool 31 can realize automatic on-off according to the working state of motor.
Compared with manually operated valve of the prior art, pressure valve 3 of the present utility model can according to the working state automatic on-off of motor, there is not the problem forgetting switch valve, certainly because forgetting that operation or misoperation cause cooling water to outflow, waste and environmental pollution would not be avoided yet.
In addition, a spool 31 realizes the keying of cooling liquid inlet 11 and cooling liquid outlet 12 simultaneously, makes the structure of whole pressure valve 3 more compact, effectively can utilize the space of filter seat 1; And pressure valve 3 is convenient to the care and maintenance of motor according to the structural type of engine synchronization action.
Certainly, also can arrange an one-way valve respectively at cooling liquid inlet 11 and cooling liquid outlet 12, namely pressure valve 3 can comprise two separate one-way valves, during engine operation, the cracking pressure of each one-way valve of the stress structure that cooling liquid produces, to make cooling system normally work; When coolant clarifier 2 changed by needs, kill engine, now each one-way valve can, by the cooling liquid inlet 11 corresponding with it and cooling liquid outlet 12 shutoff, avoid cooling liquid to outflow.The concrete structure of one-way valve can with reference to arranging above.Obviously, realize the keying of cooling liquid inlet 11 and cooling liquid outlet 12 when two one-way valves are set without using a spool, then can realize both keyings respectively, improve the independence of operation.
Further, filter seat 1 can comprise the outlet flow 13 be communicated with cooling liquid outlet 12, and the outlet of this outlet flow 13 and coolant clarifier 2, then the cooling liquid after filtering is delivered to cooling liquid outlet 12 by outlet flow 13, and then discharges.Spool 31 can backward through outlet flow 13 before stretch out, and then with barrier portion 311 shutoff outlet flow 13, to realize the shutoff to cooling liquid outlet 12.
Arranging on the one hand for the conveying of cooling liquid provides circulation passage of outlet flow 13, is convenient to cooling liquid to be delivered to cooling liquid outlet 12 from coolant clarifier 2; On the other hand, because the setting position of outlet flow 13 is comparatively flexible, substantially the longitudinal direction of whole filter seat 1 is run through, now can by spool 31 directly through outlet flow 13, with by the shutoff realized the keying of outlet flow 13 cooling liquid outlet 12 and unlatching, its structure is more simple, arranges more flexible, substantially not by the restriction of cooling liquid outlet 12 present position.
Further, barrier portion 311 can be set to cylindric, and its external diameter is more than or equal to the bore of outlet flow 13, then when barrier portion 311 as in outlet flow 13 time, by its shutoff, and can ensure sealing.
Outlet flow 13 also can be set to circular pipe, then the round column structure in barrier portion 311 can cooperatively interact with outlet flow 13, ensures the sealing reliability of all directions; When carrying out the replacing of coolant clarifier 2, cooling liquid is avoided to flow out from cooling liquid outlet 12 and outlet flow 13.
Further again, the front end of spool 31 can arrange frustum 313, fits to realize sealing with cooling liquid inlet 11, improves the reliability be tightly connected.
Meanwhile, can also arrange inlet channel 14 in filter seat 1, this inlet channel 14 can be communicated with cooling liquid inlet 11, and the sidewall of frustum 313 can seal with the opening of inlet channel 14 and fits; When spool 31 with its frustum 313 by cooling liquid inlet 11 shutoff time, the sidewall of frustum 313 is formed to seal with inlet channel 14 and contacts, effectively prevent cooling water from outwards being flowed out by cooling liquid inlet 11 and inlet channel 14, to carry out the replacing of coolant clarifier 2.
Particularly, frustum 311 can be the cone column structure that external diameter is cumulative from front to back; Certainly, also can be set to cylindric by the front end of spool 31, the part only contacted with cooling liquid inlet 11 at it arranges chamfering, to form the joint of cone column, can ensure the reliability sealed equally; Or, the front end of spool 31 can be set to baffle-like structure, or the catch that some fore-and-aft directions are arranged successively, only the baffle plate of forefront or catch are arranged to seal with cooling liquid inlet 11 cone structure contacted, to simplify its structure, as shown in Figure 3 and Figure 4.
On the basis of the above, filter seat 1 can also arrange installation cavity 15, installation cavity 15 extends at fore-and-aft direction, then by spool 31 intercalation in installation cavity 15, and can to move forward and backward along installation cavity 15; The rear end of Compress Spring 32 can be fixedly connected with installation cavity 15, then Compress Spring 32 can promote spool 31 and moves forward, so that spool 31 is with its front end shutoff cooling liquid inlet 11; When water pump conveying cooling liquid is to cooling liquid inlet 11, spool 31 under the promotion of cooling liquid after move, further compression Compress Spring 32, to open cooling liquid inlet 11.
Pressure valve 3 can also comprise valve seat 33, and valve seat 33 spiral is connected to the rear end of installation cavity 15; The two ends of Compress Spring 32 can be fixedly connected with barrier portion 311 with valve seat 33 respectively, flexible in the region that then Compress Spring 32 can limit at valve seat 33 and barrier portion 311, that is, valve seat 33 and barrier portion 311 have certain gap at fore-and-aft direction, so that Compress Spring 32 dilatation; Valve seat 33 and barrier portion 311 all have the cavity holding Compress Spring 32, to retrain Compress Spring 32, Compress Spring 32 are stretched in the longitudinal direction, and then it is movable to promote spool 31.
In addition, filtrating equipment of the present utility model can also comprise adapter 4, one end of this adapter 4 is connected with coolant clarifier 2 spiral, and the other end is connected with filter seat 1 spiral, and the two ends of adapter 4 respectively with the outlet flow 13 of filter seat 1 and the outlet of coolant clarifier 2.On the one hand, adapter 4 can realize filter seat 1 and be connected with the reliable of coolant clarifier 2, and on the other hand, the cooling water after coolant clarifier 2 can being filtered is delivered to outlet flow 13, can carry out water conservancy diversion to cooling liquid.
Usually, the outlet of coolant clarifier 2 is arranged therebetween, adapter 4 can be arranged on the centre of coolant clarifier 2, and by the longitudinal extension of outlet flow 13 along filter seat 1, cooling liquid linearly to be carried, reduces resistance; Obviously, outlet flow 13 also can be arranged on the neutral position of filter seat 1.
For improving sealing reliability further, can also arrange seal washer 5 between filter seat 1 and coolant clarifier 2, as shown in Figure 3 and Figure 4, seal washer 5 can be set to rectangular configuration, to improve sealing.
In addition, in engine-cooling system of the present utility model, can also filter seat 1 be shaped on engine body, so that when carrying out engine maintenance and maintenance, coolant clarifier 2 is changed separately, not only simplify process, can also be cost-saving, avoid filter seat 1 to abandon together with coolant clarifier 2.
Or filter seat 1 and other Element Designs such as oil filter body, machine oil cooler housing can be integrated, its level of integration is higher, needs during care and maintenance to change coolant clarifier 2, reduce cost.
As shown in Figure 4, when the engine operates, in the cooling liquid overwhelming majority inflow engine body that water pump pumps, pressure valve 3 is pushed open by pressure that sub-fraction produces by water pump backward, cooling liquid enters filter seat 1 from cooling liquid inlet 11, entered in coolant clarifier 2 by the opening on cooling filter 2 afterwards, filtered the rear outlet along coolant clarifier 2 and flow to cooling liquid outlet 12 through adapter 4, outlet flow 13, externally pipeline flows back to water pump afterwards; Meanwhile, also flow back to water pump after the cooling liquid entering motor completes cooling, then the cooling liquid entering motor and the cooling liquid entering filtrating equipment are converged at the refluxing opening place of water pump, finally flow back to water pump.
That is, engine-cooling system of the present utility model, filtrating equipment is cooled to two cover systems in parallel with motor, substantially can not have an impact to the cooling of motor.
It should be noted that, engine-cooling system is comparatively complicated, and as space is limited, be only illustrated its filtrating equipment herein, other parts please refer to prior art, repeat no more herein.
Above engine-cooling system provided by the utility model and filtrating equipment thereof are described in detail.Apply specific case herein to set forth principle of the present utility model and mode of execution, the explanation of above embodiment just understands core concept of the present utility model for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.

Claims (10)

1. the filtrating equipment of an engine-cooling system, comprise the filter seat (1) with cooling liquid inlet (11) and cooling liquid outlet (12), and the coolant clarifier (2) be arranged in described filter seat (1), it is characterized in that, also comprise pressure valve (3), described pressure valve (3) can be opened under the promotion of high-pressure coolant, and cooling liquid inlet described in shutoff (11) and described cooling liquid outlet (12) after pressure is released.
2. filtrating equipment as claimed in claim 1, it is characterized in that, described pressure valve (3) comprises the spool (31) that front and back extend and the Compress Spring (32) being connected to described spool (31) rear, described spool (31) is with cooling liquid inlet (11) described in its front end shutoff, its rear has the barrier portion (311) of cooling liquid outlet described in shutoff (12), and middle part has the contracting section (312) that sectional area is less than described barrier portion (311).
3. filtrating equipment as claimed in claim 2, it is characterized in that, described filter seat (1) also comprises the outlet flow (13) be communicated with described cooling liquid outlet (12), stretch out before described spool (31) is backward through described outlet flow (13), so that outlet flow (13) described in described barrier portion (311) shutoff.
4. filtrating equipment as claimed in claim 3, is characterized in that, described barrier portion (311) is arranged in cylindric, and its external diameter is more than or equal to the bore of described outlet flow (13), with outlet flow described in shutoff (13).
5. filtrating equipment as claimed in claim 2, it is characterized in that, the front end of described spool (31) has and can seal the frustum (313) of fitting with described cooling liquid inlet (11).
6. filtrating equipment as claimed in claim 5, it is characterized in that, described filter seat (1) also has the inlet channel (14) be communicated with described cooling liquid inlet (11), and the sidewall of described frustum (313) can seal with the opening of described inlet channel (14) fits.
7. filtrating equipment as claimed in claim 2, it is characterized in that, the installation cavity (15) extended before and after described filter seat (1) is also provided with, described Compress Spring (32) is connected with its rear end and described installation cavity (15), described spool (31) intercalation in described installation cavity (15), and can move forward and backward along described installation cavity (15).
8. filtrating equipment as claimed in claim 7, it is characterized in that, described pressure valve (3) also comprises valve seat (33), and described valve seat (33) is screwed onto the rear end of described installation cavity (15); The two ends of described Compress Spring (32) are connected with described valve seat (33) and described barrier portion (311) respectively, and flexible in the region that can limit at both; Described valve seat (33) and described barrier portion (311) all have the cavity holding described Compress Spring (32).
9. an engine-cooling system, is characterized in that, comprises the filtrating equipment described in any one of the claims 1-8.
10. engine-cooling system as claimed in claim 9, it is characterized in that, described filter seat (1) is shaped on engine body.
CN201420464125.5U 2014-08-15 2014-08-15 A kind of engine-cooling system and filtrating equipment thereof Active CN204200348U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104196615A (en) * 2014-08-15 2014-12-10 潍柴动力股份有限公司 Engine cooling system and filtering device thereof
CN114673575A (en) * 2022-03-17 2022-06-28 东风汽车集团股份有限公司 Oil cooler and control method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104196615A (en) * 2014-08-15 2014-12-10 潍柴动力股份有限公司 Engine cooling system and filtering device thereof
CN114673575A (en) * 2022-03-17 2022-06-28 东风汽车集团股份有限公司 Oil cooler and control method thereof
CN114673575B (en) * 2022-03-17 2023-11-24 东风汽车集团股份有限公司 Engine oil cooler and control method thereof

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