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Machine translation
1. (WO1981000889) RECIPROCATING PUMP
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000889    International Application No.:    PCT/JP1980/000009
Publication Date: 02.04.1981 International Filing Date: 25.01.1980
IPC:
F04B 49/24 (2006.01), F04B 53/10 (2006.01)
Applicants:
Inventors:
Priority Data:
79/120480 18.09.1979 JP
Title (EN) RECIPROCATING PUMP
(FR) POMPE ALTERNATIVE
Abstract: front page image
(EN)A reciprocating pump having a suction valve (92), a discharge valve (93), a pressure control valve (11) including a pressure receiving surface and supported at a valve seat (91) for supporting at least one of the valves (92) and (93), the pressure receiving surface disposed on a discharge passage (8b), the valve (11) being provided in a cylinder head (8), and a control spring (12) provided in a pressure regulator (13) for urging the valve (11) toward the valve seat (91), wherein the control valve (11) is operated as relief, safety and unloading valve through a simple construction. Thus, this pump allows a reduction in the number of components and can therefore be readily assembled in a pump body so as to reduce its cost and weight.
(FR)Une pompe alternative ayant une soupape d"admission (92), une soupape de refoulement (93), une soupape de commande de pression (11) comprenant une surface de reception de la pression est supportee sur un siege de soupape (91) pour supporter au moins l"une des soupapes (92 et 93), la surface de reception de la pression etant prevue sur un passage de refoulement (8b), la soupape (11) etant montee dans une culasse (8), et un ressort de commande (12) prevu dans un regulateur de pression (13) pour pousser le clapet (11) vers le siege de soupape (91). La soupape de commande (11) fonctionne comme une soupape de decompression, de surete et de decharge a l"aide d"une construction simple. Ainsi, cette pompe permet une reduction du nombre des composants et peut par consequent etre facilement assemblee dans un corps de pompe en vue de reduire son cout et son poids.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)