CN215927581U

CN215927581U - Engine body and engine with same

Info

Publication number: CN215927581U
Application number: CN202121655447.4U
Authority: CN
Inventors: 孙晶晶; 孟令智; 王宝军
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-03-01
Anticipated expiration: 2031-07-20

Abstract

The utility model belongs to the technical field of engines, and provides an engine body and an engine with the same. The water jacket of the engine body is provided with the flow guide ribs, after cooling water enters the water jacket of the engine body from the water pump through the water inlet of the engine body, the cooling water close to the outer wall of the cylinder hole flows to the upper part of the cylinder hole along the direction of the ribs under the action of the flow guide ribs, so that the flow rate of the cooling water close to the upper part of the cylinder hole is increased, the flow speed is improved, the heat convection between the outer wall surface of the cylinder hole and the cooling water is accelerated, the upper wall surface of the cylinder hole is cooled better, and the reliability of a cylinder sleeve and a piston ring is improved.

Description

Engine body and engine with same

Technical Field

The utility model belongs to the technical field of engines, and particularly relates to an engine body and an engine with the engine body.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

In the prior art, engine body cooling water flows out of a water pump and enters an engine body water jacket through an engine body water inlet to cool the wall surface near a cylinder hole so as to reduce the temperature of the engine body and the cylinder sleeve. Because the temperature in the combustion chamber is higher, the temperature of the part of the cylinder sleeve contacted with the combustion chamber and the part of the upper part of the cylinder hole close to the combustion chamber are higher, and more heat is needed to be taken away by cooling water so as to achieve better cooling effect. Because the outer wall surface that current structure organism water jacket is close to the jar hole is smooth casting cylinder, under the unchangeable condition of water pump flow, the jar hole outer wall surface velocity of flow everywhere is more even, can't realize the better cooling in jar hole upper portion.

SUMMERY OF THE UTILITY MODEL

The utility model aims to at least solve the problem of poor cooling effect of the upper part of a cylinder sleeve in the prior art, and the aim is realized by the following technical scheme:

the utility model provides an engine body in a first aspect, which comprises a body, wherein a plurality of cylinder holes are formed in the body, a water jacket is arranged in the body and surrounds the cylinder holes, at least one flow guiding rib is arranged on the wall surface of the water jacket corresponding to the top of the cylinder holes, and the flow guiding rib is used for guiding cooling liquid to flow to the top of a cylinder sleeve.

The water jacket of the engine body is provided with the flow guide ribs, after cooling water enters the water jacket of the engine body from the water pump through the water inlet of the engine body, the cooling water close to the outer wall of the cylinder hole flows to the upper part of the cylinder hole along the direction of the ribs under the action of the flow guide ribs, so that the flow rate of the cooling water close to the upper part of the cylinder hole is increased, the flow speed is increased, the heat convection between the outer wall surface of the cylinder hole and the cooling water is accelerated, the upper wall surface of the cylinder hole is cooled better, the temperature is relatively lowered, the temperature of the upper part of the cylinder sleeve contacted with the cylinder sleeve is lowered, and the reliability of the cylinder sleeve and a piston ring is improved.

Meanwhile, under the condition that the flow of the water pump is not changed, the lower cooling water flow of the outer wall surface of the cylinder hole is relatively reduced, the water flow speed is reduced, the heat convection between the outer wall surface of the cylinder hole and the cooling water is slowed down, the lower wall surface of the cylinder hole is cooled to be poor, the temperature is relatively increased, the viscosity of nearby engine oil is reduced, and the effect of reducing friction work is achieved.

In addition, according to the engine body of the present invention, the following additional technical features may be provided:

in some embodiments of the utility model, the flow guiding ribs are shaped to rotate upward along the outer wall surface of the cylinder bore.

In some embodiments of the present invention, the flow guiding rib includes a main section and an end section in sequence along a flow direction of the cooling liquid, and the end section is arranged along a horizontal direction.

In some embodiments of the utility model, the water jacket is provided with two flow guiding ribs at intervals corresponding to the position of the top of each cylinder hole, and a flow guiding channel for guiding the cooling liquid to flow to the top of the cylinder hole is formed between the two flow guiding ribs.

In some embodiments of the utility model, the main section and the tail section smoothly transition.

In some embodiments of the present invention, two flow guiding ribs are disposed on two sides of each cylinder bore.

A second aspect of the utility model proposes an engine that includes an engine body that is the engine body proposed according to the first aspect of the utility model.

The engine provided by the second aspect of the present invention has the same advantages as the engine body provided by the first aspect of the present invention, and details are not repeated herein.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows a structural view of an engine body according to an embodiment of the utility model;

fig. 2 schematically shows a cross-sectional structure view along AA-AA of fig. 1.

The reference symbols in the drawings denote the following:

100: an engine body;

10: cylinder bore, 11: water jacket, 12: and (5) flow guiding ribs.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "second" and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, an element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "inner", "side", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1, in the figure, arrows outside the engine body indicate the water inlet and outlet directions of cooling water, and arrows at the diversion ribs 12 indicate the flowing direction of the cooling water in the water jacket 11, a first aspect of the present invention provides an engine body 100, which includes a body, a plurality of cylinder bores 10 are arranged on the body, a water jacket 11 is arranged in the body, the water jacket 11 is arranged around the cylinder bores 10, at least one diversion rib 12 is arranged on the wall surface of the water jacket 11 at a position corresponding to the top of the cylinder bore, and the diversion rib 12 is used for guiding the cooling water to flow to the top of the cylinder liner.

The water jacket 11 of the engine body 100 provided by the utility model is provided with the diversion rib 12, after cooling water enters the engine body water jacket 11 from a water pump through a water inlet of the engine body, the cooling water close to the outer wall of the cylinder hole 10 flows to the upper part of the cylinder hole 10 along the direction of the rib under the action of the diversion rib 12, so that the flow rate of the cooling water close to the upper part of the cylinder hole 10 is increased, the flow speed is increased, the heat convection between the outer wall surface of the cylinder hole 10 and the cooling water is accelerated, the upper wall surface of the cylinder hole 10 is better cooled, the temperature is relatively lowered, the temperature of the upper part of a cylinder sleeve contacted with the cylinder hole is lowered, and the reliability of the cylinder sleeve and a piston ring is improved.

Meanwhile, under the condition that the flow of the water pump is not changed, the lower cooling water flow of the outer wall surface of the cylinder hole 10 is relatively reduced, the water flow speed is reduced, the heat convection between the outer wall surface of the cylinder hole 10 and the cooling water is slowed down, the cooling of the lower wall surface of the cylinder hole 10 is poor, the temperature is relatively increased, the viscosity of nearby engine oil is reduced, and the effect of reducing friction work is achieved.

In some embodiments of the present invention, the flow guiding rib 12 is shaped to rotate upward along the outer wall surface of the cylinder bore 10, so that the cooling water rotates upward along the flow guiding rib 12 to enhance the cooling effect on the upper portion of the cylinder bore 10.

In some embodiments of the present invention, the flow guiding rib 12 sequentially includes a main section and a tail section along the flow direction of the coolant, and the tail section is disposed along the horizontal direction, so that the residence time of the cooling water at the upper portion of the cylinder bore 10 is prolonged, and the cooling effect of the upper portion of the cylinder bore 10 is further improved.

In some embodiments of the present invention, two flow guiding ribs 12 are spaced at a position of the water jacket 11 corresponding to the top of each cylinder bore 10, and a flow guiding channel for guiding the coolant to flow to the top of the cylinder bore 10 is formed between the two flow guiding ribs 12, so as to improve the cooling effect on the top of the cylinder bore 10.

In some embodiments of the utility model, the main section and the tail section are in smooth transition, thereby reducing the flow resistance of the cooling liquid and avoiding the formation of flow dead zones.

In some embodiments of the present invention, two flow guiding ribs 12 are disposed on two sides of each cylinder bore 10, preferably on two opposite sides, and the four flow guiding ribs 12 may be arranged in a staggered manner up and down, so that the coolant flowing effect is better.

A second aspect of the present invention proposes an engine, which includes an engine body 100, and the engine body 100 is the engine body 100 proposed according to the first aspect of the present invention.

The engine provided by the second aspect of the present invention has the same advantages as the engine body 100 provided by the first aspect of the present invention, and details thereof are not described herein.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The engine body is characterized by comprising a body, wherein a plurality of cylinder holes are formed in the body, a water jacket is arranged in the body and surrounds the cylinder holes, at least one flow guide rib is arranged on the wall surface of the water jacket corresponding to the top of the cylinder holes, and the flow guide rib is used for guiding cooling liquid to flow to the top of a cylinder sleeve.

2. The engine block of claim 1, wherein the flow guide rib is shaped to rotate upward along the outer wall surface of the cylinder bore.

3. The engine block of claim 2, wherein the flow guide rib comprises a main section and a tail section in sequence along a flow direction of the coolant, and the tail section is arranged along a horizontal direction.

4. The engine block as set forth in claim 1, wherein the water jacket is provided with two flow guiding ribs at intervals corresponding to positions of the top of each cylinder bore, and a flow guiding channel for guiding the flow of the coolant to the top of the cylinder bore is formed between the two flow guiding ribs.

5. The engine block of claim 3, wherein the main section and the tail section transition smoothly.

6. The engine block according to any one of claims 1 to 5, wherein two flow guiding ribs are provided on both sides of each cylinder bore.

7. An engine, characterized in that the engine comprises an engine block according to any one of claims 1 to 6.