Unless the flower is a hermaphrodite, I think it is the hybrid Cyc. Golden Shower (x chlorochilon). Cyc. herrenhusanum male flower lip has a kind of starry or ciliate edges. That is why there is some bumps on the lip of your plant but not prominent. I don't mean to be rude it is just my oppinion. See link below.
I agree Ramon..I meant to note that the lip did not have the projections I've seen on other herrenhusanums. I figured it might be a hybrid. Thnaks for clearing that up!
On second though, it looks more like C. Kevin Clarke...not many pics of either on the internet but I must admit it looks even more like Kevin Clarke than Golden Showers.