Patent ID: 8783307

Claim:
A compressed natural gas (CNG) time fill system, comprising: a compression system including a gas dryer and one or more gas compressors; a gas storage system for storing CNG; a manifold time fill system for filling a plurality of natural gas vehicles with CNG; a pressure transducer or pressure transmitter for periodically detecting the pressure within the manifold time fill system to check for steady static pressure within the manifold time fill system during the flow of CNG through the manifold time fill system; and an automatic shut off valve for selectively stopping the flow of CNG into the manifold time fill system allowing the compression system to fill the gas storage system after a predetermined time and shutting the compression system down when the manifold time fill system fails to achieve the steady static pressure within a predetermined time, while repeatedly allowing the compression system to continue to deliver CNG to the manifold time fill system as long as the manifold time fill system achieves the predetermined steady state level within the predetermined time until the pressure within the manifold time fill system has reached a target fill pressure.