2 second Google search:
https://www.google.com/search?sugexp=chrome,mod%3D9&q=surge+tank&um=1&ie=UTF-8&hl=en&tbm=isch&source=og&sa=N&tab=wi&ei=br21T_OPHaue6QGDuoHJCg&biw=1544&bih=737&sei=cL21T9OgC-GC6AG_98HuCg#um=1&hl=en&safe=off&tbm=isch&q=fuel+surge+tank&revid=656020816&sa=X&ei=cL21T5edFOHI6gHKmpHLCg&ved=0CAcQgxY&bav=on.2,or.r_gc.r_pw.r_cp.r_qf.,cf.osb&fp=79d9108660f919db&biw=1544&bih=737