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Hello, I need to design an internal gear pump (the type with crescent) and I am looking for information regarding properties of different tooth profile (involute, cycloidal, truninger) and their effects on performance and costs. Any suggestion will be appreciated.

Hello, I need to design an internal gear pump (the type with crescent) and I am looking for information regarding properties of different tooth profile (involute, cycloidal, truninger) and their effects on performance and costs. Any suggestion will be appreciated.

Hi everyone, I am dealing with fuel lines for racing application and I often find reference to "dash 4" or "dash 6" fittings; I cannot find any literature about this kind of threaded fitting series; I need some table or chart with dimensions and explanation. Can anyone help?

I am about to design a centrifugal pump and I wonder if there is available some freeware code to get some rough impeller sizing before buying a commercial code. Any hints? What are the best commercial codes for the purpose?

I need information on gasoline vapour pressure at different temperature, in particular in the 20°C to 80°C range. I only find data at 100°F and that is not enough for my calculation purposes. Any suggestion where I can find detailed abacus?

Hello all, I am currently developing a solenoid actuator which has to fit onto a vessel; Vessel is about 1 liter volume and is filled with air/nitrogen at max 400 bar pressure. Maximum temperature is about 100°C. The fitting between actuator and vessel is about 14-18 mm diameter. Obviously the...

I am using a sheet of rubber to arrange diaphragms. The material is in sheets 0,7 mm thick and it is made of NBR with PA66 reinforcement cloth inside. I would like to have suggestions about the tests which I should implement in order to ensure the stability and quality of the material as...

My application consists of an actuator where the moving element travels a relatively small distance of less then 0,3 mm. The needing is to dampen the shock oscillation when the moving elements touches the stopper. Actually I need some device which absorbs the kinetic energy. I cannot implement...

In an automotive application we have a spring made of OTEVA 70 (55SiCr6); the spring is clamped between two Ergal plates. During its life the component is subject to pressurized air up to 4 bar; there could be moisture in the air. On a 30% basis we find that the spring terminals (were the spring...