Fluent material handling – with receiver or receiver coacting mea – Filling or refilling of dispensers
Patent
1997-04-24
1999-03-23
Walczak, David J.
Fluent material handling, with receiver or receiver coacting mea
Filling or refilling of dispensers
141 3, 141231, B65B 104
Patent
active
058846751
ABSTRACT:
A compressed natural gas (CNG) vehicle refueling system has a hydraulic fluid reservoir, an accumulator, and two banks of cylinders, each of which has an axially moveable piston, a pair of inlets and an outlet. The pistons separate the CNG from hydraulic fluid. The refueling system drains the banks one at a time by refueling CNG vehicles with a plurality of refueling depots. Hydraulic fluid is pumped from reservoir to the cylinders to maintain 3600 psi of pressure in the cylinders while CNG is being dispensed. A pressure limiting valve limits pressure in the vessel tanks to 3000 psi. When the bank is drained of CNG, the pistons stop moving, the pressure at the outlets drops below 3000 psi, and the pressure at the inlets increases. This difference in pressure is sensed, causing the control panel to change banks. The pressure in the accumulator and the lack of pressure in the reservoir causes the hydraulic fluid to return to the reservoir. The second bank simultaneously begins to dispense CNG in the same manner as the first bank.
REFERENCES:
patent: 5107906 (1992-04-01), Swenson et al.
patent: 5253682 (1993-10-01), Haskett et al.
patent: 5685350 (1997-11-01), Chowdhury
Bradley James E.
Walczak David J.
LandOfFree
Cascade system for fueling compressed natural gas does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cascade system for fueling compressed natural gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cascade system for fueling compressed natural gas will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2117247