Good resource for gifs and animations of hydraulics?

[Femme_physics]

I wouldn't have asked unless I really needed and couldn't find. Google only shows me images, and I even tried searching in gifs-specific websites to no-avail. Perhaps you guys already know some resources, so I'll stop wasting so much time with search engines?

 

[NeuronsAtWork]

I've looked around--I'm not finding any website that has generic animations of various hydraulic components, although by searching for specific parts some manufacturers do have animated gifs on their sites. For example, searching for 'animated gif pumps' brought up a number of gifs for wobble-plate, duplex, and vane pumps. Searching for actuator valves, etc. might do the same. Not much help--sorry.