CN213928566U - Cylinder and engine - Google Patents

Abstract

The utility model discloses a cylinder and engine, the cylinder includes: the cylinder body is provided with a cylinder hole, a first water channel cavity and a second water channel cavity, the first water channel cavity is arranged around the cylinder hole, the second water channel cavity is located on one side of the first water channel cavity, and the upper end of the second water channel cavity is communicated with the upper end of the first water channel cavity through a communication port. According to the air cylinder provided by the embodiment of the utility model, the first water channel cavity is matched with the second water channel cavity, so that the air cylinder has a double-layer water jacket structure, and the problem of cylinder hole deformation caused by poor cooling is effectively solved; the upper end through second water course chamber is passed through the intercommunication mouth with the upper end in first water course chamber and is communicate to quick, fully cool off the cylinder hole, especially can show the cooling effect that improves the high temperature region, avoid the too big piston air leakage increase that leads to of cylinder hole deflection, be favorable to improving the performance of engine.

Description

Cylinder and engine

Technical Field

The utility model relates to an engine technical field, more specifically relates to a cylinder and engine.

Background

The heat load is increased along with the increase of the power and the torque of the engine, the cooling becomes the key of the engine design, and the cylinder block water jacket is an important component of an engine cooling system and plays an important role in distributing cooling liquid and adjusting the temperature uniformity of the engine in the whole cooling system of the engine. The design of the water jacket of the cylinder block is related to the deformation degree of the engine cylinder block, and the Calculation Fluid Dynamics (CFD) performance and the temperature field distribution of a cooling system are influenced, so that the performance and the heat load of the engine are influenced.

In the related art, the water jacket of the engine cylinder block is generally designed as a single-layer water jacket, which easily causes poor cooling of a cylinder bore, and causes large deformation of the cylinder bore, increased air leakage of a piston and reduced engine performance due to overhigh temperature of a nose bridge region.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a cylinder, the cylinder has improved jar hole cooling effect, avoids jar hole to take place great deformation.

Another object of the present invention is to provide an engine having the above cylinder.

According to the utility model discloses cylinder, include: the cylinder body is provided with a cylinder hole, a first water channel cavity and a second water channel cavity, the first water channel cavity is arranged around the cylinder hole, the second water channel cavity is located on one side of the first water channel cavity, and the upper end of the second water channel cavity is communicated with the upper end of the first water channel cavity through a communication port.

According to the utility model discloses the cylinder through first water course chamber and the cooperation of second water course chamber, makes the cylinder have double-deck water jacket structure, effectively improves the problem of the jar hole deformation that causes because of the cooling is bad. The upper end through second water course chamber is passed through the intercommunication mouth with the upper end in first water course chamber and is communicate to quick, fully cool off the cylinder hole, especially can show the cooling effect that improves the high temperature region, avoid the too big piston air leakage increase that leads to of cylinder hole deflection, be favorable to improving the performance of engine.

In addition, the cylinder according to the above embodiment of the present invention may further have the following additional technical features:

according to the utility model discloses a cylinder, the cylinder hole is a plurality of along the first direction being arranged, first water course chamber includes a plurality ofly respectively around a plurality ofly the chamber section that cylinder hole and communicate each other, second water course chamber is followed first direction extends and passes through a plurality ofly intercommunication mouth one-to-one ground and a plurality of the upper end of chamber section communicates.

According to some embodiments of the present invention, the cylinder block further has a water inlet and a first water outlet, wherein the water inlet is communicated with the second water channel cavity, and the first water outlet is communicated with the first water channel cavity.

According to some embodiments of the utility model, the second water course chamber is located one side of second direction is followed to the first water course chamber, the water inlet is located keeping away from of second water course chamber one side of first water course chamber, first delivery port is located the first water course chamber is followed the opposite side of second direction.

According to some embodiments of the present invention, the water inlet is formed at a gas outlet side of the cylinder block, and the first water outlet is formed at a gas inlet side of the cylinder block.

According to some embodiments of the invention, the cylinder further comprises: the cylinder cover is covered on the cylinder body and is provided with a third water channel cavity which is communicated with the first water channel cavity and/or the second water channel cavity so that cooling liquid can enter the third water channel cavity.

According to some embodiments of the present invention, the cylinder block further has a second water outlet, the second water outlet communicates with the third water channel cavity, and the second water outlet is adjacent to the first water outlet.

According to some embodiments of the present invention, the cylinder block further has a fourth water channel cavity, the fourth water channel cavity communicates the third water channel cavity with the second water outlet, just the fourth water channel cavity is located facing away from the first water channel cavity one side of the second water channel cavity.

According to some embodiments of the invention, the cylinder further comprises: and the heat management module is connected with the first water outlet and the second water outlet and is used for adjusting the flow of the cooling liquid of the first water outlet and the flow of the cooling liquid of the second water outlet.

According to the utility model discloses engine, include according to the utility model discloses the embodiment the cylinder.

Additional aspects and advantages of the invention 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 invention.

Drawings

The above and additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an angle of a cylinder block according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at circle A;

fig. 3 is a schematic view of another angle of the cylinder block according to an embodiment of the present invention;

fig. 4 is a schematic view of an angle of a cylinder block water jacket structure according to an embodiment of the present invention;

fig. 5 is a schematic view of another angle of the cylinder block water jacket structure according to the embodiment of the present invention.

Reference numerals:

the air cylinder (10) is provided with a cylinder,

cylinder block 100, cylinder bores 101, first waterway chamber 102, chamber section 1021, second waterway chamber 103, fourth waterway chamber 106,

a communication port 200, a water inlet 201, a first water outlet 202, a second water outlet 203,

the water jacket structure (30) is,

the water jacket structure comprises a second water channel cavity water jacket structure 300, a first water channel cavity water jacket structure 301, a fourth water channel cavity water jacket structure 303, a water inlet water jacket structure 304, a second water outlet water jacket structure 305 and a first water outlet water jacket structure 306.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features, and "a plurality" means two or more, and the first feature may be "on" or "under" the second feature, and may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature therebetween, and the first feature being "on", "above" and "above" the second feature may include the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is higher in level than the second feature.

The following describes a cylinder 10 according to an embodiment of the present invention with reference to the drawings.

Referring to fig. 1 to 5, a cylinder 10 according to an embodiment of the present invention may include: a cylinder block 100.

Specifically, cylinder block 100 has cylinder bores 101, a first gallery chamber 102, and a second gallery chamber 103, first gallery chamber 102 being disposed around cylinder bores 101 to form a main water jacket, second gallery chamber 103 being located on one side of first gallery chamber 102 to form a sub water jacket, the main water jacket and sub water jacket constituting a double water jacket structure, forming a double cooling structure.

In order to show the specific structure of the water passage chamber more clearly, the water jacket structure 30 shown in fig. 4 and 5 is a spatial structure of each water passage chamber in the cylinder block 100. The first waterway cavity water jacket structure 301 represents a spatial structure in the first waterway cavity 102, i.e., a main water jacket, and the second waterway cavity water jacket structure 300 represents a spatial structure in the second waterway cavity 103, i.e., a sub water jacket.

Compare with single-deck water jacket structure in the correlation technique, the utility model discloses a double-deck water jacket structure can be fast, the higher region of abundant cooling temperature, effectively improved among the correlation technique the jar hole because of the bad problem that the deflection is big, the piston air leakage is big, the engine performance descends of cooling.

Further, as shown in fig. 2, the upper end of the second waterway chamber 103 communicates with the upper end of the first waterway chamber 102 through a communication port 200, so that the coolant in the second waterway chamber 103 can enter the first waterway chamber 102 from the upper end of the first waterway chamber 102. Here, the "upper end" refers to an end of the cylinder 10 that is upward in a vertical direction during normal use, for example, in an embodiment in which the cylinder 10 includes a cylinder block 100 and a cylinder head, the upper end of the first waterway chamber 102 refers to an end of the first waterway chamber 102 near the cylinder head, and the upper end of the second waterway chamber 103 refers to an end of the second waterway chamber 103 near the cylinder head.

During operation of cylinder 10, the temperature at the upper end position of cylinder bore 101 is higher than the temperature at the lower end position, particularly in the high temperature nose bridge region. The upper end through second water course chamber 103 communicates through intercommunication mouth 200 with the upper end in first water course chamber 102, makes the coolant liquid can be earlier with the regional heat transfer that carries out in the cylinder hole 101 upper end that the temperature is higher relatively, carries out the heat transfer with the cylinder hole 101 lower extreme region that the temperature is lower relatively again to showing and improving heat exchange efficiency, improving cooling effect, preventing that the effect that cylinder hole 101 warp is better.

According to the utility model discloses cylinder 10, through first water course chamber 102 and the cooperation of second water course chamber 103, make cylinder 10 have double-deck water jacket structure, effectively improve the problem that the jar hole 101 that causes because of the cooling is bad warp. The upper end of the second water channel cavity 103 is communicated with the upper end of the first water channel cavity 102 through the communication port 200, so that the cylinder hole 101 is cooled quickly and fully, especially, the cooling effect of a high-temperature area can be obviously improved, the increase of piston air leakage caused by the overlarge deformation of the cylinder hole 101 is avoided, and the performance of an engine is improved.

According to some embodiments of the present invention, as shown in fig. 1, cylinder bore 101 is plural, and plural cylinder bores 101 are arranged along a first direction, so that cylinder 10 forms an in-line multi-cylinder structure. For example, in fig. 1, four cylinder holes 101 are provided, and the cylinders 10 are formed in an inline four-cylinder structure.

Further, the first waterway chamber 102 includes a plurality of chamber sections 1021, the plurality of chamber sections 1021 are respectively disposed around the plurality of cylinder bores 101, and the plurality of chamber sections 1021 communicate with each other. For example, in the example shown in fig. 3 and 4, each of the chamber sections 1021 is composed of a plurality of circular arcs, and each of the circular arcs is connected to each other to form the first waterway chamber 102, which surrounds the cylinder bore 101. When cooling fluid enters the plurality of chamber sections 1021, it quickly surrounds the cylinder bore 101, accelerating the cooling of the cylinder 10. And the space between each cavity section 1021 and the hole wall of the cylinder hole 101 is equal, so that the cooling effect at each position in the circumferential direction of the cylinder hole 101 is more uniform. Of course, the structure of the first waterway chamber 102 including, but not limited to, the structure composed of a plurality of circular arcs shown in fig. 3, that is, the main water jacket including, but not limited to, the first waterway chamber water jacket structure 301 shown in fig. 4, is only required to satisfy the requirement that the first waterway chamber 102 be disposed around the cylinder bores 101.

Referring to fig. 1, the second gallery cavity 103 extends in the first direction, that is, in the arrangement direction of the plurality of cylinder bores 101, so that the second gallery cavity 103 can be matched with the first gallery cavity 102 to form a double-layered water jacket structure in a wider range, and the cooling effect of the plurality of cylinder bores 101 is more uniform. The first direction is shown with reference to a-a in fig. 1.

It should be noted that the extension of the second waterway chamber 103 in the first direction is to be broadly understood. In other words, the length of the second waterway cavity 103 extends generally in the first direction, but the second waterway cavity 103 may extend entirely in a straight line, and the second waterway cavity 103 may extend in at least one of a straight line, a curved line, a broken line, and the like. In other words, the wall surface of the second waterway cavity 103 may be any shape such as a plane, an arc surface, a folded surface, etc.

As shown in fig. 2, the second water channel cavity 103 is communicated with the upper ends of the plurality of cavity sections 1021 through the plurality of communication ports 200 in a one-to-one correspondence manner, so that the cooling liquid in the second water channel cavity 103 enters the plurality of cavity sections 1021 through the plurality of communication ports 200, respectively, and the uniformity of cooling the cylinder holes 101 by the cooling liquid in the plurality of cavity sections 1021 is improved.

According to some embodiments of the present invention, the cylinder block 100 further has a water inlet 201 and a first water outlet 202. The water inlet 201 is communicated with the second water channel cavity 103, and the first water outlet 202 is communicated with the first water channel cavity 102. Referring to fig. 1 and 3, the cooling liquid enters the second water channel chamber 103 through the water inlet 201, the second water channel chamber 103 enters the first water channel chamber 102 through the plurality of communication ports 200, and the cooling liquid flows from the first water channel chamber 102 to the first water outlet 202, so that a complete cooling path for cooling the cylinder block 100 is formed, and the cylinder holes 101 are sufficiently and rapidly cooled.

In some embodiments of the present invention, the second water channel cavity 103 is located on one side of the first water channel cavity 102 along the second direction, the second direction is different from the extending direction of the first direction, for example, the second direction can be the vertical direction of the first direction, the water inlet 201 is located on one side of the second water channel cavity 103 away from the first water channel cavity 102, and the first water outlet 202 is located on the other side of the first water channel cavity 102 along the second direction. As shown in fig. 1, the cooling liquid enters the second water channel cavity 103 through the water inlet 201, enters the first water channel cavity 102 through the communication port 200, and finally flows out through the first water outlet 202, so that the circulation of the cooling liquid in the water channel cavity is realized, and the cylinder holes 101 are rapidly and sufficiently cooled.

In some embodiments, the water inlet 201 is formed in the air outlet side of the cylinder block 100, and the first water outlet 202 is formed in the air inlet side of the cylinder block 100, as shown in fig. 1, the coolant enters the water channel cavity from the water inlet 201 in the air outlet side with a higher temperature, and then flows out from the first water outlet 202 in the air inlet side with a lower temperature, so that the coolant in the water channel cavity can exchange heat with the cylinder block 100 sufficiently, and the exhaust side cylinder hole 101 with a higher temperature can be cooled sufficiently and quickly.

In some embodiments, cylinder 10 further includes a cylinder head, which is disposed on cylinder block 100, and which has a third waterway chamber. In some embodiments, the third waterway chamber communicates with the first waterway chamber 102, so that the coolant flowing in from the water inlet 201 flows through the second waterway chamber 103 into the first waterway chamber 102, and a part of the coolant in the first waterway chamber 102 flows out from the first water outlet 202, and another part of the coolant enters the third waterway chamber to cool the cylinder head. In other embodiments, the third waterway chamber communicates with the second waterway chamber 103 so that the coolant flowing in from the water inlet 201 flows through the second waterway chamber 103 into the first waterway chamber 102 and the third waterway chamber, respectively, to cool the cylinder head and the cylinder block, respectively. In still other embodiments, the third water channel cavity is communicated with the first water channel cavity 102 and the second water channel cavity 103, the cooling liquid flowing from the water inlet 201 flows through the second water channel cavity 103 and flows into the first water channel cavity 102 and the third water channel cavity, respectively, and a part of the cooling liquid flowing into the first water channel cavity 102 flows out from the first water outlet 202, and another part of the cooling liquid enters the third water channel cavity to cool the cylinder head. In other words, the third waterway cavity communicates with the first waterway cavity 102 and/or the second waterway cavity 103 to enable the coolant to enter the third waterway cavity.

Above-mentioned multiple scheme all constitutes two cooling paths of a water inlet 201, can cool off cylinder head and cylinder block 100 fast respectively, is favorable to improving the cooling efficiency of cylinder head and cylinder block 100.

In some embodiments of the present invention, the cylinder block 100 further has a second water outlet 203, the second water outlet 203 communicates with the third water channel cavity, and the second water outlet 203 is disposed adjacent to the first water outlet 202. Referring to fig. 3, a part of the cooling liquid flowing into the second water jacket cavity 103 flows into the first water jacket cavity 102 and flows out from the first water outlet 202, and the other part of the cooling liquid flows into the third water channel cavity and flows out from the second water outlet 203, and the two water outlets are arranged together in a centralized manner, so that the temperature of the cooling liquid flowing out from the two water outlets can be known at the same time, and the cooling conditions of the two cooling paths can be known, so that the flow rate of the cooling liquid and the cooling temperatures of the two cooling paths can be accurately controlled according to the cooling conditions.

In some embodiments, the cylinder block 100 further has a fourth waterway chamber 106, the fourth waterway chamber 106 communicates the third waterway chamber with the second water outlet 203, and the fourth waterway chamber 106 is located on a side of the first waterway chamber 102 facing away from the second waterway chamber 103. As shown in fig. 3, the coolant flowing into the third waterway chamber can flow out from the second water outlet 203 through the fourth waterway chamber 106. The fourth water channel chamber 106 and the second water channel chamber 103 form auxiliary water jackets on two sides of the first water channel chamber 102, for example, as shown in fig. 5, the second water channel chamber water jacket structure 300 and the fourth water channel chamber water jacket structure 303 are respectively located on two sides of the first water channel chamber water jacket structure 301, so that the cooling liquid can uniformly flow around the cylinder hole 101, the cooling is uniform at each position in the circumferential direction of the cylinder hole 101, and the cooling effect is good.

For example, in some embodiments, the third water passage chamber includes a first chamber and a second chamber, wherein the first chamber is disposed around the cylinder hole 101, and a lower end opening of the first chamber communicates with an upper end opening of the first gas passage chamber, the second chamber is disposed on the other side of the first chamber along the second direction, and a lower end opening of the second chamber communicates with an upper end opening of the fourth water passage chamber 106, and the first chamber and the second chamber communicate with each other through a cylinder head communication port.

In some examples, the cylinder 10 further includes a thermal management module coupled to the first and second water outlets 202 and 203. The thermal management module is used for adjusting the flow rates of the cooling liquids at the first water outlet 202 and the second water outlet 203, so as to adjust the flow rates of the cooling liquids flowing through the first water channel cavity 102 and the third water channel cavity, and accurately control the flow rates of the cooling liquids according to the cooling conditions.

The cylinder 10 according to one embodiment of the present invention will be described in detail with reference to the accompanying drawings, it being understood that the following description is illustrative only and should not be construed as limiting the invention.

Fig. 4 and 5 show a spatial structure of a water channel cavity of the cylinder 10, that is, the water jacket structure 30 of the cylinder 10, wherein the water inlet water jacket structure 304 corresponds to a position of the water inlet 201, the second water channel cavity water jacket structure 300 corresponds to the second water channel cavity 103, the first water channel cavity water jacket structure 301 corresponds to the first water channel cavity 102, the fourth water channel cavity water jacket structure 303 corresponds to the fourth water channel cavity 106, the first water outlet water jacket structure 306 corresponds to the first water outlet 202, and the second water outlet water jacket structure 305 corresponds to the second water outlet 203.

As shown by arrows in fig. 4 and 5, the coolant enters the second waterway chamber jacket structure 300 from the water inlet jacket structure 304, and then flows into a plurality of positions of the first waterway chamber jacket structure 301 from the upper end through the plurality of communication ports 200, respectively, the plurality of positions corresponding to the plurality of cylinder holes 101, respectively. A part of the cooling liquid in the first water channel cavity water jacket structure 301 directly flows out from the first water outlet 202, so that the cylinder block 100 is cooled; the other part of the water enters the third water channel cavity, then flows into the fourth water channel cavity water jacket structure 303 from the third water channel cavity, and finally is discharged from the second water outlet 203, so that the cooling of the cylinder cover is realized.

According to the utility model discloses engine includes according to the utility model discloses the cylinder 10 of embodiment. Because according to the utility model discloses cylinder 10 has above-mentioned profitable technological effect, consequently according to the utility model discloses the engine, through first water course chamber 102 and the cooperation of second water course chamber 103, make cylinder 10 have double-deck water jacket structure, effectively improve because of the problem that the bad jar hole 101 that arouses of cooling warp. The upper end of the second water channel cavity 103 is communicated with the upper end of the first water channel cavity 102 through the communication port 200, so that the cylinder hole 101 is cooled quickly and fully, especially, the cooling effect of a high-temperature area can be obviously improved, the increase of piston air leakage caused by the overlarge deformation of the cylinder hole 101 is avoided, and the performance of an engine is improved.

Other constructions and operations of the engine and cylinder 10 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "specific embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A cylinder, comprising:

the cylinder body is provided with a cylinder hole, a first water channel cavity and a second water channel cavity, the first water channel cavity is arranged around the cylinder hole, the second water channel cavity is located on one side of the first water channel cavity, and the upper end of the second water channel cavity is communicated with the upper end of the first water channel cavity through a communication port.

2. The cylinder according to claim 1, wherein the cylinder holes are arranged in a plurality in a first direction, the first waterway chamber includes a plurality of chamber sections that surround the plurality of cylinder holes, respectively, and communicate with each other, and the second waterway chamber extends in the first direction and communicates with upper ends of the plurality of chamber sections through the plurality of communication ports in a one-to-one correspondence.

3. The cylinder of claim 1, wherein the cylinder block further has a water inlet and a first water outlet, wherein the water inlet is in communication with the second waterway chamber and the first water outlet is in communication with the first waterway chamber.

4. The cylinder according to claim 3, wherein the second water channel chamber is located on one side of the first water channel chamber in a second direction, the water inlet is located on one side of the second water channel chamber away from the first water channel chamber, and the first water outlet is located on the other side of the first water channel chamber in the second direction.

5. The cylinder of claim 3, wherein the water inlet is formed at an air outlet side of the cylinder block, and the first water outlet is formed at an air inlet side of the cylinder block.

6. The cylinder according to any one of claims 3-5, further comprising:

the cylinder cover is covered on the cylinder body and is provided with a third water channel cavity which is communicated with the first water channel cavity and/or the second water channel cavity so that cooling liquid can enter the third water channel cavity.

7. The cylinder of claim 6, wherein the cylinder block further has a second water outlet port in communication with the third waterway chamber, the second water outlet port being disposed adjacent the first water outlet port.

8. The cylinder of claim 7, wherein the cylinder block further has a fourth water channel cavity, the fourth water channel cavity communicates with the third water channel cavity and the second water outlet, and the fourth water channel cavity is located on a side of the first water channel cavity facing away from the second water channel cavity.

9. The cylinder of claim 7, further comprising:

and the heat management module is connected with the first water outlet and the second water outlet and is used for adjusting the flow of the cooling liquid of the first water outlet and the flow of the cooling liquid of the second water outlet.

10. An engine, characterized in that it comprises a cylinder according to any one of claims 1-9.

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