Pumps – Expansible chamber type – Moving cylinder
Patent
1988-02-29
1990-05-22
Smith, Leonard E.
Pumps
Expansible chamber type
Moving cylinder
91497, F04B 104
Patent
active
049273388
ABSTRACT:
A radial piston pump for the automotive brake system has a rotor, a couple of pistons reciprocated within a respective cylinder formed within the rotor and a bearing. The top end of the piston abuts directly to the inner surface so that no show is existed therebetween. The relationship within a starting point and a finishing point of a suction groove, a starting point and a finishing point of a disharge groove and an opening port the cylinder is designed in such a manner that at least one of a couple of cylinders connects to the suction groove during a whole rotation of the rotor.
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patent: 4776768 (1988-10-01), Kondoh
Ito Yoshiaki
Koike Hideyuki
Nagai Kougi
Sawada Akihiko
Nippondenso Co. Ltd.
Smith Leonard E.
Szczecina Jr. Eugene L.
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