CN211314381U

CN211314381U - Engine and automobile

Info

Publication number: CN211314381U
Application number: CN201922254546.0U
Authority: CN
Inventors: 张海燕; 李丕茂; 于姗姗; 周荣强
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-08-21
Anticipated expiration: 2029-12-16

Abstract

The utility model belongs to the technical field of vehicle, a engine and car are disclosed. The engine includes: a combustion chamber; a first piston assembly slidably disposed within the combustion chamber; and the second piston assembly is arranged in the combustion chamber in a sliding manner, the second piston assembly and the first piston assembly are symmetrically arranged relative to the combustion chamber, and the second piston assembly and the first piston assembly form an inverted V-shaped structure. According to the engine, the second piston assembly and the first piston assembly are symmetrically arranged relative to the combustion chamber, stress is uniform, and structural stability is good. Form the structure of falling V-arrangement through setting up second piston assembly and first piston assembly, compare with prior art adoption piston horizontal arrangement mode, first piston assembly, second piston assembly adopt the lubricated mode of injection, and lubricating oil accessible action of gravity effectively flows back, guarantees first piston assembly, second piston assembly's lubrication and cooling effect.

Description

Engine and automobile

Technical Field

The utility model relates to a vehicle technical field especially relates to an engine and car.

Background

Currently, engines typically employ a horizontally opposed free piston arrangement. As shown in fig. 1, since the piston 100 is horizontally arranged, it is difficult for the oil required for lubricating and cooling the piston 100 to circulate effectively, and it is difficult for the piston 100 to achieve effective lubricating and cooling, so that the engine with the horizontally opposite pistons 100 cannot operate normally for a long time, and the reliability is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an engine and car, lubricating oil can effectively flow back, the lubrication and the cooling of the piston of being convenient for.

To achieve the purpose, the utility model adopts the following technical proposal:

an engine, comprising:

a combustion chamber;

a first piston assembly slidably disposed within the combustion chamber;

and the second piston assembly is arranged in the combustion chamber in a sliding mode, the second piston assembly and the first piston assembly are symmetrically arranged relative to the combustion chamber, and the second piston assembly and the first piston assembly form an inverted V-shaped structure.

Preferably, both ends of the combustion chamber are open.

Preferably, the combustion chamber includes a first chamber and a second chamber that communicate with each other, the first piston assembly is slidably disposed in the first chamber, and the second piston assembly is slidably disposed in the second chamber.

Preferably, the axis of the first chamber and the axis of the second chamber are arranged at an included angle.

Preferably, the first piston assembly comprises a first piston rod and a first piston connected to each other, and the first piston is slidably disposed in the first chamber.

Preferably, the first piston is of a wedge-shaped configuration.

Preferably, a side of the first piston facing the second chamber is disposed perpendicular to a horizontal plane.

Preferably, the piston type generator further comprises a first generator and a second generator, wherein the first generator is connected to the first piston assembly, and the second generator is connected to the second piston assembly.

Preferably, the piston assembly further comprises a first resetting mechanism and a second resetting mechanism, wherein the first resetting mechanism is used for resetting the first piston assembly, and the second resetting mechanism is used for resetting the second piston assembly.

In order to achieve the purpose, the utility model also provides an automobile, including foretell engine.

The utility model has the advantages that:

the utility model provides an engine, second piston assembly and first piston assembly set up for the combustion chamber symmetry, and the atress is even, and structural stability is good. Form the structure of falling V-arrangement through setting up second piston assembly and first piston assembly, compare with prior art adoption piston horizontal arrangement mode, first piston assembly, second piston assembly adopt the lubricated mode of injection, and lubricating oil accessible action of gravity effectively flows back, guarantees first piston assembly, second piston assembly's lubrication and cooling effect.

The utility model also provides an automobile, including above-mentioned engine. The main parts of the engine are consistent with the prior art, the realizability is good, the technical complexity is low, the processing and manufacturing difficulty is reduced, the technical continuity is good, and the improved production cost is low.

Drawings

FIG. 1 is a schematic illustration of a prior art engine configuration;

fig. 2 is a schematic structural diagram of the engine of the present invention.

In the figure:

100. a piston;

1. a combustion chamber; 2. a first piston assembly; 3. a second piston assembly; 4. a first generator; 5. a second generator; 6. a first reset mechanism; 7. a second reset mechanism;

11. a first chamber; 12. a second chamber;

21. a first piston rod; 22. a first piston;

31. a second piston rod; 32. a second piston.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The embodiment provides an engine, which is suitable for the field of automobiles, in particular to a light range-extending type electric automobile. As shown in fig. 2, the engine comprises a combustion chamber 1, a first piston assembly 2, a second piston assembly 3, a first generator 4 and a second generator 5, wherein air and fuel can be introduced into the combustion chamber 1, the combustion chamber 1 is a place for combusting the air and the fuel, both ends of the combustion chamber 1 are both of an open structure, and the first piston assembly 2 and the second piston assembly 3 are respectively arranged at the open ends of both sides of the combustion chamber 1 in a sliding manner. The second piston assembly 3 and the first piston assembly 2 are symmetrically arranged with respect to the combustion chamber 1, and the second piston assembly 3 and the first piston assembly 2 form an inverted V-shaped structure.

The air and the fuel are fully mixed in the combustion chamber 1 and then combust, the gas force generated by the combustion of the fuel mixture respectively pushes the first piston assembly 2 and the second piston assembly 3 to relatively slide along the combustion chamber 1, the first generator 4 is respectively connected with the first piston assembly 2 and the first external execution element, the mechanical energy generated by the fuel mixture on the first piston assembly 2 is converted into electric energy for controlling the driving of the first external execution element, the second generator 5 is respectively connected with the second piston assembly 3 and the second external execution element, and the mechanical energy generated by the fuel mixture on the second piston assembly 3 is converted into electric energy for controlling the driving of the second external execution element. It is understood that the generators of the first generator 4 and the second generator 5 have two modes of motor driving and generator generating, and the present embodiment utilizes the generator mode.

In the engine provided by the embodiment, the second piston assembly 3 and the first piston assembly 2 are symmetrically arranged relative to the combustion chamber 1, so that the stress is uniform, and the structural stability is good. Form the structure of falling V-arrangement through setting up second piston assembly 3 and first piston assembly 2, compare with prior art adoption piston horizontal arrangement mode, first piston assembly 2, second piston assembly 3 adopt the lubricated mode of injection, and lubricating oil accessible action of gravity effectively flows back, guarantees first piston assembly 2, second piston assembly 3's lubricated and cooling effect.

Further, in order to facilitate the formation of the inverted V-shaped structure by the second piston assembly 3 and the first piston assembly 2, as shown in fig. 2, the combustion chamber 1 includes a first chamber 11 and a second chamber 12 which are communicated with each other, and an axis of the first chamber 11 and an axis of the second chamber 12 are arranged at an included angle, so that a vertex angle of the combustion chamber 1 is a right angle or an obtuse angle. A first piston assembly 2 is slidably disposed in the first chamber 11, the first chamber 11 providing a moving space for the first piston assembly 2, a second piston assembly 3 is slidably disposed in the second chamber 12, and the second chamber 12 providing a moving space for the second piston assembly 3.

The first piston assembly 2 comprises a first piston rod 21 and a first piston 22 connected to each other, the first piston rod 21 passes through the first generator 4, and the first piston 22 is slidably disposed in the first chamber 11. In order for the gas force generated by the combustion to directly push the first piston 22 to move in the axial direction of the first chamber 11, optionally the first piston 22 is of a wedge-shaped structure, in this way the gas force can be split into two force components, a component F1 in the axial direction of the first piston rod 21 and a component F2 perpendicular to the axial direction of the first piston rod 21, wherein the component F1 pushes the first piston 22 to slide along the first chamber 11. Preferably, the side of the first piston 22 facing the second chamber 12 is arranged perpendicular to the horizontal plane, so that the gas force generated by combustion acts on the first piston 22 to a greater extent, reducing energy losses.

In order to play a guiding effect on the movement of the first piston assembly 2, the engine further comprises a first sleeve, the first sleeve is arranged on the outer side of the combustion chamber 1, the first sleeve is positioned on one side close to the first cavity 11, the first piston rod 21 and the first generator 4 are arranged inside the first sleeve in a sliding mode, the first sleeve plays a role in dust prevention and protection, meanwhile, the guiding effect can be played on the first piston rod 21 and the first generator 4, and the stability in the moving process is guaranteed.

In order to ensure that the working process is continuously carried out, the engine further comprises a first resetting mechanism 6, and the first resetting mechanism 6 is used for resetting the first piston assembly 2. The first reset mechanism 6 can be a reset spring, two ends of the reset spring can respectively abut against the first piston rod 21 and other parts in the engine, the first piston rod 21 moves towards the direction far away from the combustion chamber 1 and compresses the reset spring under the driving of the first piston 22, and after the power generation of the first generator 4 is completed, the first piston rod 21 is pushed to drive the first piston 22 to reset under the self-recovery acting force of the compressed reset spring so as to perform the next working cycle. Simple structure, the working process is incessant, and production efficiency is higher. It is understood that the present embodiment does not limit the specific form of the first restoring mechanism 6, and the restoring of the first piston assembly 2 is within the protection range.

The second piston assembly 3 comprises a second piston rod 31 and a second piston 32 which are connected with each other, the second piston rod 31 passes through the second generator 5, and the second piston 32 is slidably arranged in the second chamber 12. In order for the gas force generated by the combustion to directly push the second piston 32 to move in the axial direction of the second chamber 12, the second piston 32 may alternatively be of a wedge-shaped construction, in such a way that the gas force may be split into a force component F3 in the axial direction of the second piston rod 31 and a force component F4 perpendicular to the axial direction of the second piston rod 31, wherein the force component F3 pushes the second piston 32 to slide along the second chamber 12. Preferably, the side of the second piston 32 facing the first chamber 11 is arranged perpendicular to the horizontal plane, so that the gas force generated by combustion acts on the second piston 32 to a greater extent, reducing energy losses.

In order to play a guiding effect on the movement of the second piston assembly 3, the engine further comprises a second sleeve, the second sleeve is arranged on the outer side of the combustion chamber 1, the second sleeve is located on one side close to the second chamber 12, the second piston rod 31 and the second generator 5 are arranged inside the second sleeve in a sliding mode, the second sleeve plays a role in dust prevention and protection, meanwhile, the guiding effect can be played on the second piston rod 31 and the second generator 5, and the stability in the moving process is guaranteed.

In order to ensure that the working process is continuously carried out, the engine also comprises a second resetting mechanism 7, and the second resetting mechanism 7 is used for resetting the second piston assembly 3. The second reset mechanism 7 may be a reset spring, two ends of the reset spring can respectively abut against the second piston rod 31 and other components in the engine, the second piston rod 31 moves in a direction away from the combustion chamber 1 and compresses the reset spring under the driving of the second piston 32, and after the power generation of the second generator 5 is completed, the second piston rod 31 is pushed to drive the second piston 32 to reset under the self-recovery acting force of the compressed reset spring, so as to perform the next working cycle. Simple structure, the working process is incessant, and production efficiency is higher. It is understood that the present embodiment does not limit the specific form of the second restoring mechanism 7, and the restoring of the second piston assembly 3 is within the protection range.

Optionally, in order to ensure the synchronism of the first piston assembly 2 and the second piston assembly 3 in the reciprocating motion, optionally, a first synchronizing member is arranged on the first piston rod 21, a second synchronizing member is arranged on the second piston rod 31, the first synchronizing member and the second synchronizing member are respectively electrically connected to a controller, the controller may be a PLC single chip, and the controller sends a control signal to the first synchronizing member and the second synchronizing member to regulate and control the moving speed of the first piston rod 21 and the second piston rod 31, so as to ensure the synchronism of the first piston assembly 2 and the second piston assembly 3 in the reciprocating motion.

Optionally, the first resetting mechanism 6 and the first resetting mechanism 7 may be cylinders or oil cylinders, when air and fuel are fully mixed in the combustion chamber 1 and then combust, the first resetting mechanism 6 and the first resetting mechanism 7 are only connected and do not drive the first piston rod 21 and the second piston rod 312, after power generation is completed, the first resetting mechanism 6 drives the first piston 22 through the first piston rod 21 to realize resetting, the second resetting mechanism 7 drives the second piston 32 through the second piston rod 31 to realize resetting, and the controller is electrically connected to the first resetting mechanism 6 and the first resetting mechanism 7 respectively for controlling the moving speed and the extending amount of the cylinders or the oil cylinders.

The embodiment also provides an automobile comprising the engine. The main parts of the engine are consistent with the prior art, the realizability is good, the technical complexity is low, the processing and manufacturing difficulty is reduced, the technical continuity is good, and the improved production cost is low.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to 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.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. An engine, comprising:

a combustion chamber (1);

a first piston assembly (2) slidably disposed within the combustion chamber (1);

the second piston assembly (3) is arranged in the combustion chamber (1) in a sliding mode, the second piston assembly (3) and the first piston assembly (2) are symmetrically arranged relative to the combustion chamber (1), and the second piston assembly (3) and the first piston assembly (2) form an inverted V-shaped structure.

2. An engine according to claim 1, characterized in that both ends of the combustion chamber (1) are of open construction.

3. An engine according to claim 1, characterized in that said combustion chamber (1) comprises a first chamber (11) and a second chamber (12) communicating with each other, said first piston assembly (2) being slidingly arranged in said first chamber (11) and said second piston assembly (3) being slidingly arranged in said second chamber (12).

4. An engine according to claim 3, characterized in that the axis of the first chamber (11) and the axis of the second chamber (12) are arranged at an angle.

5. An engine according to claim 4, characterized in that the first piston assembly (2) comprises a first piston rod (21) and a first piston (22) connected to each other, the first piston (22) being slidably arranged in the first chamber (11).

6. An engine according to claim 5, characterized in that the first piston (22) is of wedge-shaped construction.

7. An engine according to claim 6, characterized in that the side of the first piston (22) facing the second chamber (12) is arranged perpendicular to the horizontal plane.

8. An engine according to claim 1, characterized in that it further comprises a first generator (4) and a second generator (5), said first generator (4) being connected to said first piston assembly (2) and said second generator (5) being connected to said second piston assembly (3).

9. The engine according to claim 1, characterized in that it further comprises a first return mechanism (6) and a second return mechanism (7), said first return mechanism (6) being used for the return of said first piston assembly (2) and said second return mechanism (7) being used for the return of said second piston assembly (3).

10. A vehicle comprising an engine as claimed in any one of claims 1 to 9.