CN216381597U - Expansion tank and engine - Google Patents

Abstract

The utility model belongs to the technical field of engines, and discloses an expansion water tank and an engine, wherein the expansion water tank comprises a tank body and a water retaining piece, the bottom of the tank body is provided with a water outlet, the water outlet is used for communicating with a water inlet of an engine water pump, the water retaining piece is arranged in the tank body, the bottom of the water retaining piece is connected with the bottom of the tank body, the water retaining piece is used for forming a water storage space at the water inlet, the water inlet is positioned at the bottom of the water storage space, the top of the water storage space is provided with an opening, the side wall of the water storage space is formed by the water retaining piece or formed by the water retaining piece and the tank body, and the bottom wall of the water storage space is the bottom wall of the tank body. According to the expansion water tank provided by the utility model, the water blocking piece is arranged at the water outlet, and when the expansion water tank is inclined, a part of cooling liquid can be reserved in a water storage space surrounded by the water blocking piece due to the water blocking piece, so that an engine water pump can still suck the cooling liquid, the air is prevented from being sucked by the engine water pump, and the reliability of the water pump is improved.

Description

Expansion tank and engine

Technical Field

The utility model belongs to the technical field of engines, and particularly relates to an expansion water tank and an engine.

Background

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

The key factors influencing the cavitation of the water pump are that the pressure of the inlet of the water pump is low and air exists. In a closed-cycle cooling system, the expansion tank plays an important role in regulating the pressure at the inlet of the water pump: stabilize cooling system's pressure, guarantee that water pump inlet pressure is in stable level, can in time carry out the moisturizing for cooling system simultaneously, prevent that the water pump from inhaling the air.

The expansion water tank is generally arranged at the highest position of the engine, and the water supplementing position is the lowest point of the expansion water tank. In the diesel engine operation in-process, if the diesel engine inclination is too big, when expansion tank liquid level was in near lower liquid level, the coolant liquid was deposited in one side of expansion tank, and moisturizing mouth department lacks water, leads to the moisturizing function to lose, and the water pump import is with expansion tank's gaseous UNICOM, and the water pump is inhaled air, influences the reliability of system.

SUMMERY OF THE UTILITY MODEL

The utility model aims to at least solve the problem that the expansion water tank in the prior art is easy to suck air into an engine water pump in an inclined state to influence the reliability of a system, and the aim is realized by the following technical scheme:

the utility model provides an expansion water tank, which comprises a tank body and a water retaining piece, wherein a water outlet is formed in the bottom of the tank body and is used for communicating with a water inlet of an engine water pump, the water retaining piece is arranged in the tank body and is used for forming a water storage space above the water outlet, the top of the water storage space is open, and the side wall of the water storage space is formed by the water retaining piece or formed by the water retaining piece and part of the side wall of the tank body.

According to the expansion water tank provided by the utility model, the water blocking piece is arranged at the water outlet, and when the expansion water tank is inclined, a part of cooling liquid can be reserved in a water storage space surrounded by the water blocking piece due to the water blocking piece, so that an engine water pump can still suck the cooling liquid, the air is prevented from being sucked by the engine water pump, and the reliability of the water pump is improved.

In addition, the expansion tank according to the utility model may also have the following additional technical features:

in some embodiments of the utility model, the bottom of the water retaining member is hermetically connected with the bottom surface of the inner cavity of the box body.

In some embodiments of the utility model, the water blocking part comprises two straight plates, the straight plates are arranged along the width direction of the box body, and two ends of each straight plate are respectively abutted against the inner walls of two sides of the box body.

In some embodiments of the present invention, the water blocking member is an annular baffle plate, and the annular baffle plate is arranged around the water outlet.

In some embodiments of the utility model, a deep cavity and a shallow cavity are formed inside the box body, the depth of the deep cavity is greater than that of the shallow cavity, the bottom surface of the deep cavity is vertically below the bottom surface of the shallow cavity, the water outlet is arranged at the bottom of the deep cavity, and the water blocking member is arranged in the deep cavity

In some embodiments of the utility model, the height of the water stop is equal to the difference between the height of the deep cavity and the height of the shallow cavity.

In some embodiments of the present invention, the junction of the bottom surface of the deep cavity and the bottom surface of the shallow cavity transitions through a curved surface.

In some embodiments of the present invention, the expansion tank further comprises a pressure cap provided at the top of the tank body.

In some embodiments of the utility model, the pressure lid is disposed near a center of the top of the tank.

A second aspect of the utility model provides an engine having an expansion tank as set forth in the first aspect of the utility model.

The engine provided by the second aspect of the present invention has the same advantages as the expansion tank provided by the first aspect of the present invention, and details are not described 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 cross-sectional view of an expansion tank according to an embodiment of the utility model.

Fig. 2 schematically shows a partial structural view of an expansion tank according to an embodiment of the present invention.

The reference symbols in the drawings denote the following:

10: a box body and 11: water outlet, 12: water blocking member, 13: straight plate, 14: deep cavity, 15: shallow cavity, 16: pressure cover, 17: a water storage space.

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 "first," "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 and 2, the dotted line in fig. 1 is the liquid level of the coolant in the expansion tank when the expansion tank is inclined, in a first aspect of the present invention, an expansion tank is provided, which includes a tank 10 and a water blocking member 12, a water outlet 11 is provided at the bottom of the tank 10, the water outlet 11 is used for communicating with a water inlet of an engine water pump, the water blocking member 12 is provided inside the tank 10, the bottom of the water blocking member 12 is connected with the bottom of the tank 10, the water blocking member 12 is used for forming a water storage space 17 at the water outlet, the water inlet is located at the bottom of the water storage space 17, the top of the water storage space 17 is an opening, and the side wall of the water storage space 17 is formed by the water blocking member 12 or formed by the water blocking member 12 and part of the side wall of the tank 10.

It should be noted that the box 10 may be a square or a rectangular parallelepiped, which is not limited herein, the water blocking element 12 may be an annular baffle disposed around the water outlet 11, or may be two straight plates 13 having a width equal to that of the box 10, the water blocking element 12 maintains a certain height in the box 10, and the water blocking element 12 and the water outlet 11 have a certain interval, so that a certain amount of coolant can be stored therein.

According to the expansion water tank provided by the utility model, the water blocking piece 12 is arranged at the water outlet 11, and when the expansion water tank is inclined, a part of cooling liquid can be reserved in the water storage space 17 surrounded by the water blocking piece 12 due to the existence of the water blocking piece 12, so that an engine water pump can still suck the cooling liquid, the air is prevented from being sucked by the engine water pump, and the reliability of the water pump is improved.

Specifically, the water blocking member 12 includes two straight plates 13, the straight plates 13 extend along the width direction of the tank 10, two ends of the straight plates 13 are respectively abutted to two sides of the tank 10, the straight plates 13 can be connected with the tank 10 by welding, and the manufacturing cost is low.

In some embodiments of the present invention, a deep cavity 14 and a shallow cavity 15 are formed inside the tank body, the depth of the deep cavity 14 is greater than that of the shallow cavity 15, the bottom surface of the deep cavity 14 is located below the bottom surface of the shallow cavity 15 in the vertical direction, the water outlet 11 is arranged at the bottom of the deep cavity 14, and the water baffle 12 is arranged in the deep cavity 14, so that when the water tank is inclined, a certain amount of cooling liquid can be retained in the deep cavity 14.

In particular, the height of the water deflector 12 is equal to the difference between the height of the deep cavity 14 and the height of the shallow cavity 15, so that the volume of the water holding space 17 is sufficient to retain a certain amount of coolant, avoiding the pump emptying.

Preferably, the junction of the bottom surface of the deep cavity 14 and the bottom surface of the shallow cavity 15 is in arc transition, so that the reliability is good, and the circulation effect is good.

In some embodiments of the utility model, the expansion tank further comprises a pressure cap 16 provided at the top of the tank body, and the expansion tank is capable of releasing pressure through the pressure cap 16 when the internal pressure is excessive.

Specifically, the pressure cover 16 is disposed near the center of the top of the tank.

A second aspect of the utility model provides an engine having an expansion tank as set forth in the first aspect of the utility model.

The engine provided by the second aspect of the present invention has the same advantages as the expansion tank provided by the first aspect of the present invention, and details 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 (10)

1. The expansion water tank is characterized by comprising a tank body and a water retaining piece, wherein a water outlet is formed in the bottom of the tank body and is used for communicating with a water inlet of an engine water pump, the water retaining piece is arranged inside the tank body and is used for forming a water storage space above the water outlet, the top of the water storage space is open, and the side wall of the water storage space is formed by the water retaining piece or the water retaining piece and part of the side wall of the tank body.

2. The expansion tank as claimed in claim 1, wherein the bottom of the water blocking member is hermetically connected to the bottom surface of the inner chamber of the tank body.

3. The expansion tank as claimed in claim 1, wherein said water blocking member comprises two straight plates, said straight plates are arranged along the width direction of said tank body, and both ends of said straight plates are respectively abutted against the inner walls of both sides of said tank body.

4. The expansion tank as claimed in claim 1, wherein said water blocking member is an annular baffle plate, and said annular baffle plate is enclosed above said water outlet.

5. The expansion tank as claimed in claim 1, wherein the interior of the tank body is formed with a deep cavity and a shallow cavity, the depth of the deep cavity is greater than the depth of the shallow cavity, and the bottom surface of the deep cavity is located below the bottom surface of the shallow cavity in the vertical direction, the water outlet is provided at the bottom of the deep cavity, and the water blocking member is provided in the deep cavity.

6. The expansion tank as claimed in claim 5, wherein the height of the water blocking member is equal to the difference between the height of the deep chamber and the height of the shallow chamber.

7. The expansion tank as claimed in claim 5, wherein the junction of the bottom surface of the deep chamber and the bottom surface of the shallow chamber is transited by a cambered surface.

8. The expansion tank as claimed in any one of claims 1 to 7, further comprising a pressure cover provided on the top of the tank body.

9. The expansion tank as claimed in claim 8, wherein the pressure cover is provided near a central position of the top of the tank body.

10. An engine characterized by having an expansion tank according to any one of claims 1 to 9.

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