Title:
【発明の名称】羽根型ポンプ
Document Type and Number:
Japanese Patent JP2614074
Kind Code:
B2
Abstract:
A fuel pumping apparatus includes a high pressure pump and a low pressure pump contained in a housing and driven by a drive shaft which is coupled to a rotary part of an internal combustion engine. The low pressure pump is a vane pump having a rotor (10) in which is formed a plurality of outwardly extending slots (12) which accommodate outwardly spring loaded vanes (16). The edges of the vanes engage an eccentrically disposed surface (14) formed on a stator (13). The pump has end plates and inlet and outlet ports (22, 23) communicating with the space (21) defined between said surface (14) and the outer surface of the rotor. The outer edges of each vane are formed with grooves (19) which extend along the edges and the grooves (19) communicate by way of passages (20) with the inner ends of the respective slots (12). Side plates are disposed at the opposite ends of the rotor and one of the side plates has an opening (27) which is positioned after the inlet port (22) in the direction of rotation of the rotor, the opening being positioned below the normal level of fuel in the housing and communicating in turn with the inner ends of the slots.
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Inventors:
Robin christopher wall
Stephen the James O'Neen
Stephen the James O'Neen
Application Number:
JP6593988A
Publication Date:
May 28, 1997
Filing Date:
March 22, 1988
Export Citation:
Assignee:
LUCAS INDUSTRIES PUBLIC LIMITED COMPANY
International Classes:
F04C2/344; F02M37/04; F04B23/12; F04C11/00; F04C14/28; (IPC1-7): F04B23/12; F04C2/344
Domestic Patent References:
| JP60170085U | ||||
| JP5014163Y2 |
Attorney, Agent or Firm:
Kiyotaka Sasaki (3 outside)