The pressure switch is works differentially - it senses the pressuer difference beween two points, in my case the inside of the wtc and the inside of the tank. When the tank fills, the air moves freely into the wtc and both tank and wtc pressure are the same. When the tank is full, the valve shuts off the tank, but the pump tries to force additional water into the tank. The tank pressure rises above the wtc pressure shutting the pum off. Norbert Bruggens way of doing things....
New project - Neptune - a fantasy boat project
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The pressure switch is works differentially - it senses the pressuer difference beween two points, in my case the inside of the wtc and the inside of the tank. When the tank fills, the air moves freely into the wtc and both tank and wtc pressure are the same. When the tank is full, the valve shuts off the tank, but the pump tries to force additional water into the tank. The tank pressure rises above the wtc pressure shutting the pum off. Norbert Bruggens way of doing things....
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Would it be simpler to use a close tank than venting into the WTC?Make it simple, make strong, make it work!Comment
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Make it simple, make strong, make it work!Comment
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The sealed pressure ballast system is a tried and true method of ballast control in RC subs. OTW and Sheerline have been using it for decades. Engel boats also pressure up the dry compartments of their boats during piston tank actuation.
The lost volume of the ballast tank is less of an issue with the large boats that typically use these systems. They're not suitable for small boats where space is at a premium, but for big boys, they're a completely valid alternative.
BobComment
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The sealed pressure ballast system is a tried and true method of ballast control in RC subs. OTW and Sheerline have been using it for decades. Engel boats also pressure up the dry compartments of their boats during piston tank actuation.
The lost volume of the ballast tank is less of an issue with the large boats that typically use these systems. They're not suitable for small boats where space is at a premium, but for big boys, they're a completely valid alternative.
BobComment
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Finished the WTC for my little fantasy boat Neptun. Ballast system uses a peristaltic pump with a float and a water switch to turn the pump off when the tank is full. Pump controlled by a Brüggen BTS and auto-leveler by Engel. 3s lipo as power source, corona receiver, and a outrunner brushless to drive the prop. I like how compact is turned out...
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Finished the WTC for my little fantasy boat Neptun. Ballast system uses a peristaltic pump with a float and a water switch to turn the pump off when the tank is full. Pump controlled by a Brüggen BTS and auto-leveler by Engel. 3s lipo as power source, corona receiver, and a outrunner brushless to drive the prop. I like how compact is turned out...
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