CN113844254A

CN113844254A - Natural gas automobile

Info

Publication number: CN113844254A
Application number: CN202110977972.6A
Authority: CN
Inventors: 缪宣和; 莫伟树; 许忠杰; 毛德龙; 曾宪民; 韦福锦; 余方; 胡先锋; 黄东杰
Original assignee: Dongfeng Liuzhou Motor Co Ltd
Current assignee: Dongfeng Liuzhou Motor Co Ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2021-12-28

Abstract

The invention discloses a natural gas automobile which comprises a gas tank mounting rack and a gas tank, wherein the gas tank mounting rack is arranged on an automobile chassis and extends along the front-back direction; the gas pitcher is located the gas pitcher mounting bracket, the gas pitcher is used for being connected with automobile engine's air intake manifold. According to the natural gas automobile provided by the invention, the gas tank mounting frame is arranged on the automobile chassis, so that the gas tank is mounted on the automobile chassis, the volume of the gas tank can be correspondingly increased, the gas tank can store more fuel gas, the driving mileage of the natural gas automobile after single inflation is increased, and the inflation times are reduced.

Description

Natural gas automobile

Technical Field

The invention relates to the technical field of new energy automobiles, in particular to a natural gas automobile.

Background

At present, the gas pitcher of the natural gas car of system of reforming is generally installed in the trunk, installs the gas pitcher in the trunk, has taken the storing space of trunk on the one hand, makes the customer can't place all the other article in the trunk, and on the other hand is limited because of the space of trunk, and the volume of gas pitcher can be restricted to the trunk, and the gas that leads to the small storable of volume of gas pitcher is few, and then restricts the driving mileage of natural gas car, need gas filling many times when driving mileage is longer, makes the customer easily produce mileage anxiety.

Disclosure of Invention

The invention mainly aims to provide a natural gas automobile, and aims to solve the problems that a gas tank of the natural gas automobile is arranged in a trunk, so that the volume of the gas tank is small, and the gas which can be stored is less.

In order to achieve the above object, the present invention provides a natural gas vehicle, including:

the air tank mounting rack is arranged on the automobile chassis and extends along the front-back direction; and the number of the first and second groups,

and the gas tank is arranged on the gas tank mounting frame and is used for being connected with an air inlet manifold of an automobile engine.

Optionally, the gas tank mounting brackets are provided with two, the gas tanks are provided with two, and the gas tanks are correspondingly mounted on the two gas tank mounting brackets.

Alternatively, two of the gas tank mounts are arranged symmetrically with respect to a center line of the automobile chassis in the left-right direction.

Optionally, the gas pitcher mounting bracket includes spacing arm, spacing arm is including dismantling the first spacing arm and the spacing arm of second of connection, first spacing arm with the spacing arm of second encloses jointly and closes and form spacing hole, the gas pitcher is located spacing downthehole, first spacing arm is equipped with the installation department, the installation department be used for with longeron on the vehicle chassis is connected.

Optionally, a rubber pad is arranged in the limiting hole.

Optionally, the limiting arms are provided in a plurality, and the limiting arms are arranged at intervals in the front-back direction.

Optionally, a heat shield is provided on a side of the gas tank mount remote from the vehicle chassis.

Optionally, the natural gas car still includes exhaust system, exhaust system includes along exhaust head pipe assembly, preceding exhaust silencer and the back exhaust silencer that the fore-and-aft direction laid in proper order, exhaust head pipe assembly with connect through first blast pipe between the preceding exhaust silencer, preceding exhaust silencer with connect through the second blast pipe between the back exhaust silencer, first blast pipe has along fore-and-aft direction first pipeline section, bellows section and the second pipeline section of connecting in order, first pipeline section the bellows section with the second pipeline section is connected in order, the bellows section extends along left right direction.

Optionally, in the front-to-back direction, the corrugated pipe section is obliquely arranged gradually close to the second pipe section, the second pipe section is provided with a straight line section extending in the front-to-back direction, an included angle between the corrugated pipe section and the straight line section is a, and a is greater than or equal to 90 degrees and less than or equal to 105 degrees.

Optionally, exhaust system still includes limit structure, limit structure includes fixed plate, damping pad and gag lever post, the fixed plate with the gas pitcher mounting bracket is connected, the damping pad with the fixed plate is connected, the one end of gag lever post with preceding exhaust muffler is connected, the other end with the damping pad is connected.

According to the technical scheme, the natural gas automobile comprises a gas tank mounting frame and a gas tank, wherein the gas tank mounting frame is arranged on an automobile chassis and extends along the front-back direction; the gas pitcher is located the gas pitcher mounting bracket, the gas pitcher is used for being connected with automobile engine's air intake manifold. Through set up on vehicle chassis the gas pitcher mounting bracket, in order to incite somebody to action the gas pitcher is installed on vehicle chassis, but corresponding increase the volume of gas pitcher makes the gas pitcher can save more gas, and then makes the gas automobile single gas filled driving mileage increase, reduces and aerifys the number of times.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a natural gas vehicle provided by the present invention;

FIG. 2 is a partial structural view of FIG. 1 (without the heat shield installed);

FIG. 3 is a schematic structural view of the gas tank mount of FIG. 1;

fig. 4 is a partially enlarged view of a in fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Natural gas automobile	33	Rear exhaust muffler
1	Gas tank mounting rack	341	First pipe section
				11	First limiting arm	342	Corrugated pipe section
111	Mounting part	343	Second pipe section
				12	Second limiting arm	343a	Straight line segment
13	Limiting hole	35	Second exhaust pipe
				14	Heat shield	36a	Fixing plate
2	Gas tank	36b	Vibration damping pad
				31	Exhaust front pipe assembly	36c	Limiting rod
32	Front exhaust silencer

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In view of this, the invention provides a natural gas automobile, wherein the gas tank mounting rack is arranged on an automobile chassis to mount the gas tank on the automobile chassis, so that the volume of the gas tank can be correspondingly increased, the gas tank can store more fuel gas, the driving mileage of the natural gas automobile during single inflation is increased, and the inflation times are reduced. As shown in fig. 1 to 4, the present invention provides an embodiment of a natural gas vehicle.

As shown in fig. 1 to 4, a natural gas automobile 100 according to the present invention includes a gas tank mount 1 and a gas tank 2, the gas tank mount 1 is provided on an automobile chassis, and the gas tank mount 1 extends in a front-rear direction; the gas tank 2 is arranged on the gas tank mounting frame 1, and the gas tank 2 is used for being connected with an air inlet manifold of an automobile engine.

In the technical scheme of the invention, the natural gas automobile 100 comprises the gas tank mounting rack 1 and the gas tank 2, wherein the gas tank mounting rack 1 is arranged on an automobile chassis, and the gas tank mounting rack 1 extends along the front-back direction; the gas tank 2 is arranged on the gas tank mounting frame 1, and the gas tank 2 is used for being connected with an air inlet manifold of an automobile engine. Through set up on vehicle chassis gas pitcher mounting bracket 1, in order to incite somebody to action gas pitcher 2 is installed on vehicle chassis, but corresponding increase the volume of gas pitcher 2 makes gas pitcher 2 can save more gas, and then makes the gas automobile 100 single inflatable driving mileage increase, reduces and aerifys the number of times.

In the present embodiment, as shown in fig. 1, two gas tank mounting frames 1 are provided, and two gas tanks 2 are correspondingly mounted to the two gas tank mounting frames 1. Through setting up two gas pitcher mounting bracket 1 and two gas pitcher 2 provides sufficient gas for automobile engine, and then increases natural gas car 100's single inflatable driving mileage reduces and aerifys the number of times, improves customer satisfaction.

Specifically, in the present embodiment, as shown in fig. 1 and 2, two of the gas tank mounts 1 are arranged symmetrically with respect to the center line of the vehicle chassis in the left-right direction. Through will two gas tank mounting bracket 1 is in chassis center line symmetrical arrangement in the left and right sides orientation, and then make two gas tank 2 is in chassis center line symmetrical arrangement in the left and right sides orientation to the load that makes left and right sides automobile tire bear is even, can avoid the unilateral tire loss too fast, balances whole car load simultaneously, with the safety of guaranteeing to drive under the relatively poor condition of road conditions.

The gas tank 2 is mounted on the automobile chassis through the gas tank mounting frame 1. In this embodiment, as shown in fig. 1 and 2, the gas tank mounting bracket 1 includes spacing arm, spacing arm is including dismantling the first spacing arm 11 and the spacing arm 12 of second of connection, first spacing arm 11 with the spacing arm 12 of second encloses jointly and closes and form spacing hole 13, gas tank 2 is located in spacing hole 13, first spacing arm 11 is equipped with installation department 111, installation department 111 be used for with last longeron of vehicle chassis is connected. The gas pitcher 2 is installed in spacing hole 13, first spacing arm 11 with the spacing arm 12 of second is right the gas pitcher 2 carries on spacingly, in order to incite somebody to action the gas pitcher 2 is fixed on the gas pitcher mounting bracket 1, the gas pitcher mounting bracket 1 is installed on vehicle chassis, and then makes the gas pitcher 2 is installed in vehicle chassis.

In order to avoid collision friction between the limiting arm and the gas tank 2, a protective structure is arranged. In this embodiment, a rubber pad is disposed in the limiting hole 13. The limiting arm comprises a first limiting arm 11 and a second limiting arm 12, wherein the first limiting arm 11 and the second limiting arm 12 can be provided with one of the rubber pads or both the rubber pads, so that the first limiting arm 11 and the second limiting arm 12 jointly enclose and form a protective layer in the limiting hole 13, the gas tank 2 is stably and reliably mounted on an automobile chassis, collision friction between the first limiting arm 11 and/or the second limiting arm 12 and the gas tank 2 is avoided, and the service life of the gas tank 2 is prolonged.

Specifically, in this embodiment, as shown in fig. 3, a plurality of the limiting arms are provided, and the plurality of limiting arms are arranged at intervals in the front-rear direction. By providing a plurality of the stopper arms to form a plurality of stopper points on the gas tank mounting bracket 1, the gas tank 2 is more reliably fixed on the gas tank mounting bracket 1, which contributes to improving the stability of the installation of the gas tank 2.

The gas tank 2 is fixedly arranged on an automobile chassis through the gas tank mounting frame 1, and the gas tank mounting frame is provided with a protection device. In this embodiment. As shown in fig. 1 and 3, a heat shield 14 is provided on the side of the gas tank mounting bracket 1 remote from the vehicle chassis. Thermal shield 14 is located on the spacing arm 12 of second, thermal shield 14 covers and establishes gas pitcher 2 keeps away from one side of vehicle chassis, thermal shield 14 includes along the bottom plate that the fore-and-aft direction extends and certainly two curb plates that the left and right sides of bottom plate upwards extended, the bottom plate with two curb plates enclose jointly and close and form opening appearance chamber up, gas pitcher 2 is located hold the intracavity. Through keep away from gas pitcher mounting bracket 1 one side on the chassis of car sets up separate heat exchanger 14 makes gas pitcher 2 avoids receiving external heat evil to influence, is simultaneously to vehicle chassis on gas pitcher 2 protects, prevents to drive a vehicle the in-process gas pitcher 2 receives the collision, improves natural gas car 100 driving safety.

Specifically, in the present embodiment, as shown in fig. 1 and 2, the natural gas automobile 100 further includes an exhaust system, the exhaust system includes a front exhaust pipe assembly 31, a front exhaust muffler 32, and a rear exhaust muffler 33, which are sequentially arranged in the front-rear direction, the front exhaust pipe assembly 31 and the front exhaust muffler 32 are connected by a first exhaust pipe, the front exhaust muffler 32 and the rear exhaust muffler 33 are connected by a second exhaust pipe 35, the first exhaust pipe has a first pipe section 341, a bellows section 342, and a second pipe section 343, which are sequentially connected in the front-rear direction, the first pipe section 341, the bellows section 342, and the second pipe section 343 are sequentially connected, and the bellows section 342 extends in the left-right direction. The exhaust front pipe assembly 31, preceding exhaust silencer 32 and back exhaust silencer 33 front and back direction lay in proper order to with the waste gas that natural automobile produced is discharged and is carried out the amortization, first exhaust pipe is equipped with bellows section 342, bellows section 342 extends along left and right sides direction, can absorb the torsional vibration that the engine produced, avoids the exhaust lifting hook or the fracture of rubber lug of preceding exhaust silencer 32 become invalid to improve exhaust system reliability.

Specifically, in the present embodiment, as shown in fig. 1 and fig. 2, in the front-to-back direction, the bellows section 342 is disposed in an inclined manner gradually approaching the second tube section 343, the second tube section 343 has a straight line section 343a extending in the front-to-back direction, and an included angle between the bellows section 342 and the straight line section 343a is a, and 90 ° or more and a or less and 105 ° or less. The included angle between the bellows section 342 and the straight line section 343a is set to be greater than or equal to 90 ° and less than or equal to 105 °, so that the bellows section 342 can better absorb torsional vibration generated by an engine, and the reliability of an exhaust system is further improved.

The exhaust system is arranged on the automobile chassis along the front-back direction of the whole automobile, and the front exhaust silencer 32 is connected with the air tank mounting frame 1. In this embodiment, as shown in fig. 4, the exhaust system further includes a limiting structure, the limiting structure includes a fixing plate 36a, a damping pad 36b, and a limiting rod 36c, the fixing plate 36a is connected to the gas tank mounting bracket 1, the damping pad 36b is connected to the fixing plate 36a, one end of the limiting rod 36c is connected to the front exhaust muffler 32, and the other end is connected to the damping pad 36 b. The fixed plate 36a with gas tank mounting bracket 1 fixed connection, damping pad 36b with fixed plate 36a passes through the connecting piece and connects, be equipped with the through-hole on the damping pad 36b, the one end of gag lever post 36c with preceding exhaust muffler 32 fixed connection, the other end with the through-hole cooperation, with preceding exhaust muffler 32 with gas tank mounting bracket 1 is fixed. Preceding exhaust muffler 32 with distance between the gas pitcher mounting bracket 1 is less, and then shortens the length of gag lever post 36c makes preceding exhaust muffler 32 with gas pitcher mounting bracket 1 is fixed more reliably, just gag lever post 36c with gas pitcher mounting bracket 1 passes through damping pad 36b is connected, avoids gag lever post 36c with gas pitcher mounting bracket 1 produces resonance, causes the exhaust abnormal sound.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A natural gas automobile, comprising:

2. The natural gas automobile of claim 1, wherein there are two of the gas tank mounts, and two of the gas tanks are mounted to the two gas tank mounts.

3. The natural gas automobile of claim 2, wherein two of the gas tank mounts are arranged symmetrically with respect to a center line of the automobile chassis in the left-right direction.

4. The natural gas automobile of claim 1, wherein the gas tank mounting bracket comprises a limiting arm, the limiting arm comprises a first limiting arm and a second limiting arm which are detachably connected, the first limiting arm and the second limiting arm together enclose a limiting hole, the gas tank is arranged in the limiting hole, and the first limiting arm is provided with a mounting part which is used for being connected with a longitudinal beam on the automobile chassis.

5. The natural gas automobile of claim 4, wherein a rubber pad is disposed in the limiting hole.

6. The natural gas automobile as claimed in claim 4, wherein a plurality of the stopper arms are provided, and a plurality of the stopper arms are provided at intervals in the front-rear direction.

7. The natural gas automobile of claim 1, wherein a side of the tank mount remote from the automobile chassis is provided with a heat shield.

8. The natural gas automobile according to claim 1, further comprising an exhaust system including a front exhaust pipe assembly, a front exhaust muffler and a rear exhaust muffler arranged in this order in a front-rear direction, the front exhaust pipe assembly and the front exhaust muffler being connected by a first exhaust pipe, the front exhaust muffler and the rear exhaust muffler being connected by a second exhaust pipe, the first exhaust pipe having a first pipe section, a bellows section and a second pipe section connected in this order in the front-rear direction, the bellows section extending in a left-right direction.

9. The natural gas vehicle of claim 8, wherein the bellows section is disposed obliquely in a front-to-rear direction so as to gradually come close to the second section, the second section having a straight section extending in a front-to-rear direction, and an angle between the bellows section and the straight section is A, and 90 ° A to 105 °.

10. The natural gas automobile of claim 8, wherein the exhaust system further comprises a limiting structure, the limiting structure comprising a fixing plate, a vibration damping pad, and a limiting rod, the fixing plate being connected to the gas tank mounting bracket, the vibration damping pad being connected to the fixing plate, one end of the limiting rod being connected to the front exhaust muffler, and the other end being connected to the vibration damping pad.