outlawjw
Member
When you run a hand puwered ports power if you have no load you can pump fast , but as load increases you cannot pump as fast because load also increases on source of power be it hand or motor
I get what you are saying, it just isn't correct. True you get more surface area and thus more force, but the mistake you are making is thinking that all of that force helps you in the direction you want it to. The pressure acts in a vector normal to the surface. You only get to count the component of that vector acting in the direction you want it to (ie inline with the ram axis). You've gotta use trig for that. Example would be suppose you had a 1 sq in. area at a 45 degree angle in an volume of 1psi liquid. Because it's at a 45-degree angle to your ram, the force on the area will be 1lb but only ~.70lb will be acting in the direction you want. Because you have more surface area, it will break even however. Your calculation never takes into effect this vector component breakdown. You'd either need a formula to calculate it or a good knowledge of calculus to do so depending on the shape you go with