I am not so sure, since a recent source I used read that this type of pump pumps petrol to vehicles. It appears to work in Algodoo, which is my main aim.
Please send me your source and I will take a look.
Other variations of the vane pump include drilling holes, whereas rather than squeezing the fluid, it is somewhat pushed through these holes by the decreasing volume, and propelled upwards.
It would be quite difficult to photocopy an entire book and upload it, unless you ask for me to paste a link that merely describes the book, and not the book's actual contents.
Apologies for the vague description; A logic gate is a device mostly used in electrical machines to perform simple operations. In this scene, I have provided a mechanized version of some simple logic gates for lucidity.
You may view a more elaborate description here: http://en.wikipedia.org/wiki/Logic_gate
Sorry for the misunderstanding - I have updated the scene. A toggle mechanism has been added to each of the inputs, to make simulation easier. I hope this solves the problem.