JPH0721421U - Vehicles with CNG engine - Google Patents

Abstract

(57) [Abstract] [Purpose] To mount a CNG cylinder securely, save space, and improve fuel efficiency. [Structure] CNG cylinders 35 and 36 are mounted in a frame inner space 30 formed by a cross member 10 that connects frames and a rear end support member 20 that connects end portions of the frames, and holes provided in the cross member 10 Discharge ports 35a,
36a is fitted and one end surfaces 35b and 36b are attached to the cross member 10
Butt and fix it.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle equipped with a CNG engine in which fuel is supplied from a compressed natural gas cylinder, and more particularly to an improvement in technology for mounting the compressed natural gas cylinder in the vehicle.

[0002]

[Prior art]

 In addition to diesel engines that use light oil as fuel, there are CNG engines that use compressed natural gas (CNG) as fuel, and there are vehicles equipped with such CNG engines. Here, in a vehicle equipped with a CNG engine, it is necessary to mount a CNG cylinder corresponding to a fuel tank. Conventionally, as shown in FIG. 3, a CNG cylinder is installed between the cab 51 and the loading platform 52 in the vertical direction. A plurality of cylinders 53 are mounted on top of each other, or the cylinders 53 are mounted on the side surface of the body frame 55 as shown in FIG.

[0003]

[Problems to be solved by the device]

 However, since the weight of the cylinder is heavy and it is necessary to prevent the cylinder from popping out of the vehicle in the event of a collision, in the conventional method of mounting the CNG cylinder, the mounting frame of the cylinder is solid. It had a simple frame structure. As a result, the weight of the vehicle increases more than necessary to reduce fuel consumption, and a space for installing a cylinder mounting frame becomes necessary. As a result, the luggage loading space becomes small, and the limited space available for the vehicle. There is a fear that you will not be able to use effectively.

The present invention has been made in view of the above circumstances, and in a vehicle equipped with a CNG engine that supplies fuel from a CNG cylinder, space can be saved when the CNG cylinder is installed, and a collision can be achieved. It is an object of the present invention to provide a vehicle with a CNG engine that prevents the cylinder from popping out of the vehicle even when the time is up.

[0005]

[Means for Solving the Problems]

 Therefore, in the present invention, in a vehicle equipped with a CNG engine that supplies fuel from a CNG cylinder, the CNG cylinder is disposed in the inner space formed by the body frame, and the members forming the body frame are The cylinder has an abutting part that is abutted on one side in the axial direction.

[0006]

[Action]

 Since the member constituting the vehicle body frame is the abutting portion with which one surface in the axial direction of the CNG cylinder is abutted, the CNG cylinder is pressed and fixed to the vehicle body frame at the abutting portion, and the CNG cylinder is strong. It will be fixed to the body frame. Further, the CNG cylinder is firmly fixed to the body frame by the members constituting the body frame, and it is not necessary to newly provide a member for fixing the CNG cylinder. Further, since the CNG cylinder is arranged in the inner space composed of the vehicle body frame, the CNG cylinder does not reduce the loading space of the luggage, so that the space of the vehicle can be effectively used, and A large space can be taken.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, a CNG engine-equipped vehicle 1 has a CNG engine (not shown) mounted below a cab 2, and a driving force is transmitted to driving wheels 6 axially supported by frames 4 and 5 by a driving force transmission device 3. Transmitted.

Here, as a structure according to the present invention, it is formed by the frames 4 and 5, a cross member 10 connecting the frames 4 and 5 and a rear end support member 20 connecting the ends of the frames 4 and 5. CNG cylinders 35 and 36 are mounted in the frame inner space 30. As shown in the drawing, the cross member 10 is provided with holes 11 and 12 into which the discharge ports 35a and 36a are fitted, and by fitting the discharge ports 35a and 36a into the hole parts 11 and 12, One end surfaces 35b and 36b of the CNG cylinders 35 and 36 on the side where the outlets 35a and 36a are formed are abutted against the cross member 10.

That is, the cross member 10 near the holes 11 and 12 functions as an abutting portion. Further, the rear end surfaces 35c, 36c of the CNG cylinders 35, 36 are in contact with the rear end support member 20 so that the CNG cylinders 35, 36 abut the holes 11, 12 of the cross member 10.

The CNG cylinders 35 and 36 are supported by the cross member 10 and the rear end support member 20 by the bands 25 and 26, respectively. Next, the operation of the above configuration will be described. The cross member 10 is provided with holes 11 and 12, and the one end surfaces 35b and 36b of the CNG cylinders 35 and 36 are abutted against the cross member 10. Further, in this embodiment, the rear end surfaces 35c and 36c of the CNG cylinders 35 and 36 are arranged. Since the rear end support member 20 is also contacted with the rear end support member 20, the CNG cylinders 35, 36 are securely fixed while the one end faces 35b, 36b are pressed by the cross member 10, and the CNG cylinders 35, 36 are fixed. It will be firmly fixed to the frames 4 and 5.

Further, since the CNG cylinders 35 and 36 are arranged in the frame inner space 30, it is not necessary to arrange the CNG cylinders 35 and 36 in the upper part of the frames 4 and 5 or behind the cab 2, for example. Therefore, it is possible to secure a space for loading the luggage. As a result, the space for loading luggage can be widened, and the space of the vehicle can be effectively used.

Therefore, in this embodiment, it is possible to prevent the CNG cylinders 35 and 36 from jumping out of the vehicle at the time of a collision without adopting a strong frame structure, so that the vehicle weight is increased more than necessary. It is possible to safely install CNG cylinders 35 and 36 without the need for fuel, thus improving fuel efficiency. Further, since the CNG cylinders 35 and 36 are arranged in the space 30 inside the frame, it is not necessary to newly provide a space for mounting the cylinder, and as a result, the luggage loading space is increased and the limited space available for the vehicle is effective. It has the effect that it can be used for various purposes and leads to improvement of commercialability.

[0013]

[Effect of device]

 As described above, the present invention, in a vehicle equipped with a CNG engine for supplying fuel from a CNG cylinder, arranges the CNG cylinder in an inner space formed by the body frame and also provides a member constituting the body frame. Since the CNG cylinder has a structure in which it is abutted against one surface in the axial direction, the CNG cylinder can be reliably mounted, and the cylinder can be reliably prevented from jumping out from the vehicle even in the event of a collision. Can be stopped. Further, space can be saved when the CNG cylinder is arranged, and the weight of the vehicle for mounting the CNG cylinder is not increased more than necessary, so that the fuel cost can be improved.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of part A in FIG.

FIG. 3 is a side view showing a conventional example.

FIG. 4 is a side view showing a conventional example.

[Explanation of symbols]

 4 frame 5 frame 10 cross member 11 hole 12 hole 30 frame inner space 35 CNG cylinder 36 CNG cylinder

Claims (1)

[Scope of utility model registration request] 1. In a vehicle equipped with a CNG engine for supplying fuel from a compressed natural gas cylinder, a compressed natural gas cylinder is arranged in an inner space formed by a body frame, and a member forming the body frame is A vehicle equipped with a CNG engine, which has an abutting portion against which one axial surface of a natural gas cylinder is abutted.