Abstract: A triple-CNG (Compressed Natural Gas) cylinder mounting device for a vehicle for mounting a single-gas cylinder placement unit (2) and a dual-gas cylinder placement unit (3) onto the vehicle frame (1) having a right frame member (11) and left frame member (12) partitioned by a front cross-member (13) and a rear cross member (14). The single-gas cylinder placement unit (2) is disposed at the front part of the vehicle frame (1). The single-gas cylinder placement unit (2) is locked by the locking means on the right frame member (11) and/or the left frame member (12) and/or at the front cross-member (13). While, the dual-gas cylinder placement unit (3) is disposed between the middle and rear parts of the vehicle frame (1). The dual-gas cylinder placement unit (3) is locked by the locking means on the frames (11) and/or (12) and optionally on the rear cross-member (14).

Abstract: A CNG cylinder mounting device for a vehicle according to the present invention has parts different from the typical CNG cylinder mounting device: the gas cylinder supporting frame has a feature of a steel plate shaped into two gas cylinder placement frame units. Each unit uses a belt to fasten the upper cylinder, locks the gas cylinder to the cylinder placement frame unit, and has four cylinder placement frame supporting sleeves underneath. The cylinder placement frame supporting sleeves are placed on the bed supporting bracket whereas the bed support is placed on the bored bed floor and has four bracket supporting sleeves under the floor inside the through holes.

Abstract: A CNG filling receptacle holding device for a vehicle according to the present invention comprises additional elements for the installation of CNG filling receptacle with the fuel filling path opening on the body of the vehicle to that of the typical installation of the gas filling receptacle inside the engine compartment wherein a number of molded plates are made into elements for assembling onto a frame at the position of the CNG filling receptacle holding device for the vehicle according to the present invention.

Abstract: The invention is to search for and create the specific jigs and fixtures for CNG filling receptacles connected to the fuel filler tanks for motor vehicles, by emphasizing on the convenience of refueling.

Abstract: This is to the search for the way to hold the gas containers on the carrier of vehicles and to create the parts suitable for actual use and meet the auto parts manufacturing standard while emphasizing on the worthiness, strength and safety.

Abstract: This is to the search for create the specific components for holding CNG container system on motor vehicles and emphasizes on its advantages in any aspects for the worthiness and safety to the owners of vehicles.