CN215949636U - Water pump, engine assembly and operation machine - Google Patents
Water pump, engine assembly and operation machine Download PDFInfo
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- CN215949636U CN215949636U CN202122085566.7U CN202122085566U CN215949636U CN 215949636 U CN215949636 U CN 215949636U CN 202122085566 U CN202122085566 U CN 202122085566U CN 215949636 U CN215949636 U CN 215949636U
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Abstract
The utility model provides a water pump, an engine assembly and an operation machine, wherein the water pump comprises: a pump housing and a thermostat; the pump shell is provided with a first interface, a second interface, a third interface and a fourth interface, wherein the first interface is used for being connected with the water inlet pipe, the second interface is used for being connected with the water inlet of the radiator, the third interface is used for being connected with the water outlet of the radiator, and the fourth interface is used for being connected with the engine; the thermostat is arranged at the first interface; the first interface, the second interface and the fourth interface are communicated; the third interface is communicated with the fourth interface; the thermostat can selectively enable the first interface to be communicated with the second interface or the fourth interface. According to the utility model, the pressure balance type thermostat is integrated, so that the thermostat can adjust the flow according to the temperature of the medium flowing into the pump shell, the requirement of large flow is met, and the impact of the medium on the valve is reduced.
Description
Technical Field
The utility model relates to the technical field of engineering machinery, in particular to a water pump, an engine assembly and an operating machine.
Background
At present, with the upgrading of diesel engine technology, the requirements on the performance and the structure of the diesel engine are also improved. In order to solve the problems that the traditional engine cylinder body is complex in structure, large in size, high in maintenance difficulty, not beneficial to manufacturing and mounting of an engine and the like, a thermostat and a water pump are integrated, but the conventional integrated thermostat is usually in a water inlet straight-through type, is small in water flow and is suitable for small-displacement engines.
SUMMERY OF THE UTILITY MODEL
The utility model provides a water pump, which is used for solving or improving the defect that after a thermostat is integrated in the prior art, the water pump has small water flow and can only be suitable for a small-displacement engine.
The utility model also provides an engine assembly.
The utility model also provides a working machine.
According to a first aspect of the present invention, there is provided a water pump comprising: a pump housing and a thermostat;
the pump shell is provided with a first interface, a second interface, a third interface and a fourth interface, wherein the first interface is used for being connected with a water inlet pipe, the second interface is used for being connected with a water inlet of a radiator, the third interface is used for being connected with a water outlet of the radiator, and the fourth interface is connected with an engine;
the thermostat is arranged at the first interface;
wherein the first port, the second port and the fourth port are in communication;
the third interface is communicated with the fourth interface;
the thermostat can selectively enable the first interface to be communicated with the second interface or the fourth interface.
According to one embodiment of the utility model, the thermostat comprises: the valve comprises a valve seat, a valve body and an induction assembly;
the valve seat is arranged corresponding to the first interface and is connected with the pump shell;
the valve body is movably connected with the valve seat through the induction assembly, so that the first interface can be selectively communicated with the second interface or the fourth interface;
wherein, a first water through port is arranged on the valve body;
the first interface can be selectively communicated with the fourth interface through the first water through port.
Specifically, the present embodiment provides an implementation manner in which a thermostat includes a valve seat, a valve body, and a sensing assembly, where a first port and a fourth port are communicated to form a first circulation path, the first port, a second port, a third port, and the fourth port are communicated to form a second circulation path, and the sensing assembly adjusts a connection position of the valve body and the valve seat, so that the first port can selectively communicate with the second port or the fourth port, that is, the first circulation path and the second circulation path are switched.
Further, in the first circulation path, after the medium enters the first connection port, the medium passes through the first water passage port provided in the valve body and flows into the engine through the fourth connection port.
In addition, in the second circulation passage, after the medium enters the first interface, because the temperature is higher than the preset temperature, the induction assembly adjusts the relative position between the valve body and the valve seat, so that a gap is generated between the valve body and the valve seat, the medium flows out through the gap between the valve body and the valve seat, flows into the radiator from the second interface for heat dissipation, flows back to the pump shell from the third interface, and finally flows into the engine from the fourth interface after being cooled.
In a possible embodiment, the pump case is further provided with a sealing ring and a boss, the sealing ring is sleeved on the outer periphery of the valve body along the movement direction of the valve body, the boss corresponds to one surface of the valve body provided with the first water through opening, and when the sensing assembly drives the valve body to act, the surface of the valve body provided with the first water through opening is abutted against the boss, so that the first water through opening is closed, namely the first circulation passage is closed.
In this embodiment, the boss and the seal ring are not more specifically limited, and for this part, in practical applications, reference may be made to the related art design, and for the setting of closing the first water passage port by abutting the boss against the valve body, reference may be made to the related art.
According to one embodiment of the utility model, the inductive component comprises: the elastic part, the guide pillar and the induction part;
the elastic part is arranged between the valve seat and the valve body and is respectively connected with the valve seat and the valve body;
the guide post penetrates through the elastic part, is connected with the valve body and is used for guiding the moving direction of the valve body;
the sensing part is arranged at the far end of the guide post, which is opposite to the valve body, and is used for sensing the temperature of the medium entering the first interface;
the induction part is heated to expand, and the valve body is pushed to be separated from the valve seat through the guide pillar;
when the valve body is separated from the valve seat, the first port is communicated with the second port;
when the valve body is combined with the valve seat, the first port is communicated with the fourth port.
Particularly, this embodiment provides an embodiment that response subassembly includes elasticity portion, guide pillar and response portion, and the pressure balance of thermostat has been guaranteed in the setting of elasticity portion, and the setting of guide pillar has then realized adjusting the in-process in first circulation water route and second circulation water route at the response portion, moves according to the guide direction of guide pillar, guarantees the separation of valve body and disk seat.
According to an embodiment of the present invention, the sensing part includes: wax pills, rubber tubes and inductors;
the wax pill is arranged at the far end of the guide post opposite to the valve body;
the rubber tube is sleeved outside the wax pill;
the induction body is sleeved outside the rubber tube;
wherein the wax pellets expand upon heating.
Particularly, this embodiment provides an embodiment that response portion includes wax ball, rubber tube and inductor, through setting up the inductor sensitive to the temperature to and the wax ball of thermal expansion, realized giving the wax ball back with the temperature transmission when the inductor, the wax ball inflation, and realize separating valve body and disk seat through the guide pillar, the medium flows out from the clearance between valve body and the disk seat, and the medium realizes 360 even outflows, and water flow is big, rivers are little to the valve impact, operate steadily.
According to an embodiment of the utility model, the thermostat further comprises: the end cover is connected with the pump shell corresponding to the first interface and used for fixing the valve seat;
and the circumferential side wall of the end cover is provided with a second water through opening, and the second water through opening is used for being connected with the water inlet pipe.
Specifically, the present embodiment provides an implementation manner of an end cover disposed corresponding to the first port, where the end cover is disposed to facilitate connection of the valve seat and the pump casing, and to facilitate communication between the external connection pipe and the first port through the second water passage.
It should be noted that the screw can pass through the end cover and the valve seat in sequence and be matched with the screw hole on the pump shell, so that the valve seat is fixed through the end cover, and devices inside the thermostat are protected through the end cover.
According to one embodiment of the utility model, a fifth interface is arranged on the pump shell and is used for being communicated with the urea heating water return passage.
Specifically, the embodiment provides an implementation manner of a fifth interface communicated with a urea heating water return passage, and the pump shell is communicated with the urea heating water return passage, so that a waterway interface is increased, and the universality of the water pump is improved.
According to one embodiment of the utility model, a sixth port is arranged on the pump shell and is used for being communicated with a cooling water return passage of the urea nozzle.
Specifically, the present embodiment provides an implementation of a sixth interface communicated with a urea nozzle cooling water return passage, and the pump casing is communicated with the urea nozzle cooling water return passage, so that the waterway interface is increased, and the universality of the water pump is increased.
According to one embodiment of the utility model, a seventh interface is arranged on the pump shell and is used for being communicated with the warm air return water passage.
Specifically, the embodiment provides an implementation manner of the seventh interface communicated with the warm air return water passage, and the pump shell is communicated with the warm air return water passage, so that the waterway interface is increased, and the universality of the water pump is improved.
According to an embodiment of the utility model, the pump further comprises a pulley connected to the pump housing, wherein the pulley is a poly-v wheel.
Specifically, the belt wheel connected with the pump shell is set to be a multi-wedge wheel, so that the effects of high transmission power, stable operation and the like are achieved.
According to a second aspect of the present invention, there is provided an engine assembly, comprising an engine, a radiator, a water inlet pipe and a water pump as described above, wherein the first port is connected to the water inlet pipe, the second port is connected to the water inlet of the radiator, the third port is connected to the water outlet of the radiator, and the fourth port is connected to the engine.
According to a third aspect of the present invention, there is provided a work machine having a water pump as described above, or an engine assembly as described above.
One or more technical solutions in the present invention have at least one of the following technical effects: according to the water pump, the engine assembly and the operation machine, the pressure balance type thermostat is integrated, so that the thermostat can adjust the flow according to the temperature of a medium flowing into a pump shell, the requirement of large flow is met, and meanwhile, the impact of the medium on a valve is reduced.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is one of the schematic views of the assembly of the water pump provided by the present invention;
FIG. 2 is a second schematic view of the assembly of the water pump according to the present invention;
FIG. 3 is a third schematic view showing the assembly of the water pump according to the present invention;
fig. 4 is a fourth schematic diagram illustrating the assembly relationship of the water pump according to the present invention.
FIG. 5 is a fifth schematic view of the assembly of the water pump according to the present invention;
FIG. 6 is a sixth schematic view showing the assembly of the water pump according to the present invention;
FIG. 7 is an enlarged schematic view of section A of FIG. 6;
fig. 8 is a schematic view showing the assembly relationship of the thermostat in the water pump according to the present invention.
Reference numerals:
10. a pump housing; 11. A first interface; 12. A second interface;
13. a third interface; 14. A fourth interface; 15. A fifth interface;
16. a sixth interface; 17. A seventh interface; 18. A boss;
20. a thermostat; 21. A valve seat; 22. A valve body;
221. a first water passage port; 23. An inductive component; 231. An elastic portion;
232. a guide post; 233. A sensing part; 234. Wax pills;
235. a hose; 236. An inductor; 24. An end cap;
241. a second water vent; 30. And (4) a sealing ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Fig. 1 to 6 are one to six schematic views illustrating the assembly relationship of the water pump according to the present invention. The pump shell 10 is made of metal through casting, and after the casting is finished, a first connector 11, a second connector 12, a third connector 13, a fourth connector 14, a fifth connector 15, a sixth connector 16 and a seventh connector 17 are machined on the pump shell 10.
It should be noted that, when the pump body is matched with the component, a corresponding sealing structure is further included, and the present invention is not limited too much, and in practical application, reference may be made to related arrangements in the field.
Fig. 7 is an enlarged view of a portion a of fig. 6, fig. 8 is a view showing an assembly relationship of the thermostat 20 in the water pump according to the present invention, fig. 7 and 8 mainly show the components inside the thermostat 20, the present invention mainly provides the structures of the valve seat 21, the valve body 22, the first water passage 221, the second water passage 241, the elastic portion 231, the guide post 232, the wax pill 234, the rubber tube 235, the inductor 236, etc., in practical products, however, the structure also includes a corresponding sealing structure, a supporting structure, a positioning structure and the like, and the specific arrangement of the structures, in practical applications, with reference to the related designs, the present invention primarily includes sensing the temperature of the medium via the sensor 236, and the guide post 232 is pushed to move by the expansion of the wax pill 234, the guide post 232 drives the valve body 22 to move, further, the valve body 22 and the valve seat 21 are separated from each other, and the first circulation passage and the second circulation passage are switched.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In embodiments of the utility model, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In some embodiments of the present invention, as shown in fig. 1 to 8, the present solution provides a water pump comprising: a pump housing 10 and a thermostat 20; a first connector 11, a second connector 12, a third connector 13 and a fourth connector 14 are arranged on the pump shell 10, the first connector 11 is used for being connected with a water inlet pipe, the second connector 12 is used for being connected with a water inlet of a radiator, the third connector 13 is used for being connected with a water outlet of the radiator, and the fourth connector 14 is used for being connected with an engine; the thermostat 20 is arranged at the first interface 11; the first interface 11, the second interface 12 and the fourth interface 14 are communicated; the third port 13 is communicated with the fourth port 14; the thermostat 20 can selectively make the first port 11 communicate with the second port 12 or the fourth port 14.
In detail, the utility model provides a water pump, which is used for solving or improving the defect that after a thermostat is integrated in the prior art, the water pump has small water flow and can only be suitable for a small-displacement engine, and the thermostat can adjust the flow according to the temperature of a medium flowing into a pump shell 10 by integrating a pressure balance type thermostat, so that the requirement of large flow is met, and the impact of the medium on a valve is reduced.
In some possible embodiments of the utility model, the thermostat 20 comprises: a valve seat 21, a valve body 22 and a sensing assembly 23; the valve seat 21 is arranged corresponding to the first connector 11 and is connected with the pump shell 10; the valve body 22 is movably connected with the valve seat 21 through a sensing assembly 23, so that the first port 11 can be selectively communicated with the second port 12 or the fourth port 14; wherein, the valve body 22 is provided with a first water passage port 221; when the first port 11 can selectively communicate with the fourth port 14, the first port 11 communicates with the fourth port 14 through the inner cavity of the valve body 22 and the first water passage port 221.
Specifically, the present embodiment provides an implementation manner that the thermostat 20 includes a valve seat 21, a valve body 22, and a sensing assembly 23, where the first port 11 and the fourth port 14 are communicated to form a first circulation path, the first port 11, the second port 12, the third port 13, and the fourth port 14 are communicated to form a second circulation path, and the sensing assembly 23 adjusts a connection position of the valve body 22 and the valve seat 21, so that the first port 11 can selectively communicate with the second port 12 or the fourth port 13, that is, the first circulation path and the second circulation path are switched.
The first circulation path is a small circulation path, i.e., the medium passes through the first connection port 11, the valve seat 21, the inner cavity of the valve body 22, and the first water passage port 221 in this order, and finally flows into the fourth connection port 14.
The second circulation path is a large circulation, that is, the medium passes through the first port 11, the valve seat 21, the inner cavity of the valve body 22, the gap between the valve seat 21 and the valve body 22, the second port 12, the radiator, the third port 13 in sequence, and finally flows into the fourth port 14.
Further, in the first circulation path, after the medium enters the first connection port 11, the medium passes through the first water passage port 221 provided in the valve body 22 and flows into the engine through the fourth connection port 14.
In addition, in the second circulation path, after the medium enters the first port 11, since the temperature is higher than the preset temperature, the sensing assembly 23 adjusts the relative position between the valve body 22 and the valve seat 21, so that a gap is generated between the valve body 22 and the valve seat 21, the medium flows out through the gap between the valve body 22 and the valve seat 21, flows into the radiator from the second port 12 to dissipate heat, flows back to the pump shell 10 from the third port 13, and finally flows into the engine from the fourth port 14 after being cooled.
In a possible embodiment, the valve body 22 is flared towards the valve seat 21, in order to divert the medium flowing into the restriction to the first water passage 211, and at the same time to open and close the passage between the first port 11 and the fourth port 14 by means of a projection of the circumferential edge of the flared structure.
In a possible embodiment, the pump casing 10 is further provided with a sealing ring 30 and a boss 18, the sealing ring 30 is sleeved on the outer periphery of the valve body 22 along the moving direction of the valve body 22, the boss 18 corresponds to the surface of the valve body 22 provided with the first water passage opening 221, when the sensing assembly 23 drives the valve body 22 to act, the surface of the valve body 22 provided with the first water passage opening 221 is abutted against the boss 18, and the first water passage opening 221 is closed, namely the first circulation passage is closed.
Note that, in the present embodiment, the boss 18 and the seal ring 30 are not more specifically limited, and for this part, in practical applications, reference is made to a design related to the art, and for an arrangement in which the boss 18 abuts against the valve body 22 and the first water passage port 221 is closed, reference is made to a related art.
In some possible embodiments of the utility model, the sensing assembly 23 comprises: an elastic part 231, a guide post 232 and a sensing part 233; the elastic part 231 is disposed between the valve seat 21 and the valve body 22 and is connected to the valve seat 21 and the valve body 22, respectively; the guide post 232 passes through the elastic part 231 and is connected with the valve body 22 for guiding the moving direction of the valve body 22; the sensing part 233 is disposed at a distal end of the guide post 232 opposite to the valve body 22, and is used for sensing the temperature of the medium entering the first port 11; wherein, the sensing part 233 expands when heated, and pushes the valve body 22 to separate from the valve seat 21 through the guide post 232; when the valve body 22 is separated from the valve seat 21, the first port 11 is communicated with the second port 12; when the valve body 22 is combined with the valve seat 21, the first port 11 communicates with the fourth port 14.
Specifically, the present embodiment provides an embodiment in which the sensing assembly 23 includes an elastic part 231, a guide post 232, and a sensing part 233, the elastic part 231 is provided to ensure pressure balance of the thermostat 20, and the guide post 232 is provided to ensure separation of the valve body 22 from the valve seat 21 by moving according to a guide direction of the guide post 232 during adjustment of the first and second circulation water paths by the sensing part 233.
In some possible embodiments of the present invention, the sensing part 233 includes: wax pills 234, rubber tubes 235 and inductors 236; the wax pill 234 is arranged at the far end of the guide post 232 relative to the valve body 22; the rubber tube 235 is sleeved outside the wax pill 234; the inductor 236 is sleeved outside the rubber tube 235; wherein the wax pellet 234 expands upon heating.
Specifically, the embodiment provides an embodiment that the sensing part 233 comprises the wax pill 234, the rubber tube 235 and the sensing body 236, and by providing the sensing body 236 sensitive to temperature and the wax pill 234 expanded by heating, after the sensing body 236 transmits the temperature to the wax pill 234, the wax pill 234 expands, the valve body 22 is separated from the valve seat 21 by the guide post 232, the medium flows out from a gap between the valve body 22 and the valve seat 21, the medium uniformly flows out at 360 degrees, the water flow is high, the impact of the water flow on the valve is small, and the operation is stable.
In some possible embodiments of the utility model, the thermostat 20 further comprises: the end cover 24 is connected with the pump shell 10 corresponding to the first connector 11 and used for fixing the valve seat 21; wherein, the circumferential side wall of the end cover 24 is provided with a second water through opening 241, and the second water through opening 241 is used for being connected with a water inlet pipe.
In particular, the present exemplary embodiment provides an embodiment of the end cap 24, which is arranged in correspondence with the first port 11, the end cap 24 being arranged, on the one hand, to facilitate the connection of the valve seat 21 with the pump housing 10 and, on the other hand, to enable the external connection to communicate with the first port 11 via the second water passage opening 241.
It should be noted that the screws may pass through the end cover 24 and the valve seat 21 in sequence, and cooperate with screw holes on the pump casing 10, so as to fix the valve seat 21 by the end cover 24, and protect devices inside the thermostat 20 by the end cover 24.
In some possible embodiments of the utility model, a fifth port 15 is provided on the pump casing 10, and the fifth port 15 is used for communicating with the urea heating water return passage.
Specifically, the present embodiment provides an implementation of the fifth interface 15 communicated with the urea heating water return passage, and the pump casing 10 is communicated with the urea heating water return passage, so that the waterway interface is increased, and the universality of the water pump is increased.
In some possible embodiments of the utility model, a sixth port 16 is provided on the pump housing 10, the sixth port 16 being adapted to communicate with the urea nozzle cooling water return passage.
Specifically, the present embodiment provides an implementation of the sixth interface 16 communicating with the urea nozzle cooling water return passage, and by communicating the pump casing 10 with the urea nozzle cooling water return passage, the waterway interface is increased, and the versatility of the water pump is increased.
In some possible embodiments of the utility model, the pump casing 10 is provided with a seventh interface 17, and the seventh interface 17 is used for communicating with the warm air return water passage.
Specifically, the present embodiment provides an implementation of the seventh interface 17 communicated with the warm air return passage, and the pump housing 10 is communicated with the warm air return passage, so that the waterway interface is increased, and the universality of the water pump is increased.
In some possible embodiments of the present invention, a pulley is further included that is connected to the pump housing 10, wherein the pulley is a poly-v wheel.
Specifically, the pulley connected to the pump housing 10 is a multi-wedge pulley, so that the effects of high transmission power, smooth operation and the like are achieved.
In some embodiments of the present invention, the present invention provides an engine assembly having an engine, a radiator, a water inlet pipe and a water pump as described above, wherein the first port 11 is connected to the water inlet pipe, the second port 12 is connected to the water inlet of the radiator, the third port 13 is connected to the water outlet of the radiator, and the fourth port 14 is connected to the engine.
In some embodiments of the utility model, the present disclosure provides a work machine having a water pump as described above, or an engine assembly as described above.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "a manner," "a particular manner," or "some manner" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or manner is included in at least one embodiment or manner of an embodiment of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or mode. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or modes. Furthermore, various embodiments or modes described in this specification, as well as features of various embodiments or modes, may be combined and combined by those skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are merely illustrative of the present invention and are not to be construed as limiting the utility model. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.
Claims (10)
1. A water pump, comprising: a pump housing and a thermostat;
the pump shell is provided with a first interface, a second interface, a third interface and a fourth interface, wherein the first interface is used for being connected with a water inlet pipe, the second interface is used for being connected with a water inlet of a radiator, the third interface is used for being connected with a water outlet of the radiator, and the fourth interface is used for being connected with an engine;
the thermostat is arranged at the first interface;
wherein the first port, the second port and the fourth port are in communication;
the third interface is communicated with the fourth interface;
the thermostat can selectively enable the first interface to be communicated with the second interface or the fourth interface.
2. A water pump according to claim 1, wherein the thermostat comprises: the valve comprises a valve seat, a valve body and an induction assembly;
the valve seat is arranged corresponding to the first interface and is connected with the pump shell;
the valve body is movably connected with the valve seat through the induction assembly, so that the first interface can be selectively communicated with the second interface or the fourth interface;
wherein, a first water through port is arranged on the valve body;
the first interface can be selectively communicated with the fourth interface through the first water through port.
3. A water pump as claimed in claim 2, wherein the induction assembly comprises: the elastic part, the guide pillar and the induction part;
the elastic part is arranged between the valve seat and the valve body and is respectively connected with the valve seat and the valve body;
the guide post penetrates through the elastic part, is connected with the valve body and is used for guiding the moving direction of the valve body;
the sensing part is arranged at the far end of the guide post, which is opposite to the valve body, and is used for sensing the temperature of the medium entering the first interface;
the induction part is heated to expand, and the valve body is pushed to be separated from the valve seat through the guide pillar;
when the valve body is separated from the valve seat, the first port is communicated with the second port;
when the valve body is combined with the valve seat, the first port is communicated with the fourth port.
4. The water pump according to claim 3, wherein the induction portion includes: wax pills, rubber tubes and inductors;
the wax pill is arranged at the far end of the guide post opposite to the valve body;
the rubber tube is sleeved outside the wax pill;
the induction body is sleeved outside the rubber tube;
wherein the wax pellets expand upon heating.
5. The water pump of claim 2, wherein the thermostat further comprises: the end cover is connected with the pump shell corresponding to the first interface and used for fixing the valve seat;
and the circumferential side wall of the end cover is provided with a second water through opening, and the second water through opening is used for being connected with the water inlet pipe.
6. The water pump according to any one of claims 1 to 5, wherein a fifth port is arranged on the pump shell and is used for being communicated with a urea heating water return passage.
7. The water pump according to any one of claims 1 to 5, wherein a sixth port is provided in the pump housing, and the sixth port is used for communicating with a cooling water return passage of the urea nozzle.
8. The water pump according to any one of claims 1 to 5, wherein a seventh port is arranged on the pump shell and is used for being communicated with the warm air return water passage.
9. An engine assembly comprising an engine, a radiator, a water inlet pipe and a water pump according to any one of claims 1 to 8, wherein the first port is connected to the water inlet pipe, the second port is connected to the radiator water inlet, the third port is connected to the radiator water outlet, and the fourth port is connected to the engine.
10. A work machine having a water pump as claimed in any one of claims 1 to 8 or an engine assembly as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122085566.7U CN215949636U (en) | 2021-08-31 | 2021-08-31 | Water pump, engine assembly and operation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122085566.7U CN215949636U (en) | 2021-08-31 | 2021-08-31 | Water pump, engine assembly and operation machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215949636U true CN215949636U (en) | 2022-03-04 |
Family
ID=80430963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122085566.7U Active CN215949636U (en) | 2021-08-31 | 2021-08-31 | Water pump, engine assembly and operation machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215949636U (en) |
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2021
- 2021-08-31 CN CN202122085566.7U patent/CN215949636U/en active Active
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