F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
Compresseur à soupape d'aspiration, augmentant le débit effectif de la soupape, réduisant la chute de pression et le volume restant au point mort haut du cylindre.
Dispositif de lubrification d'un assemblage entre deux pieces mecaniques mobiles l'une par rapport a l'autre, notamment articulation bielle-piston