Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
116 words
A fuel pump assembly comprising a cylindrical casing, an electromotor in said casing, perforated front and rear cover elements for said casing, a shaft means arranged to support said electromotor with the shaft means having a terminal portion that extends through said front cover element, said terminal portion arranged to receive a further centrally apertured cover element, said last-named cover element including fuel inlet means and fuel pumping elements having at least one planar wall disposed between said respective cover elements, said front cover element for said casing being a frustum having an asymmetrical front wall and the fuel pumping elements having oppositely disposed surfaces that are exposed to a fuel supply in a sump means.
Claim 2
Dependent Claim
116 words
A fuel pump assembly comprising a cylindrical casing, an electromotor in said casing, perforated front and rear cover elements for said casing, a shaft means arranged to support said electromotor with the shaft means having a terminal portion that extends through said front cover element, said terminal portion arranged to receive a further centrally apertured cover element, said last-named cover element including fuel inlet means and fuel pumping elements having at least one planar wall disposed between said respective cover elements, said front cover element for said casing being a frustum having an asymmetrical front wall and the fuel pumping elements having oppositely disposed surfaces that are exposed to a fuel supply in a sump means.
Claim 3
Dependent Claim
23 words
A fuel pump assembly as claimed in claim 1, in which said last-named cover element includes means for supporting said fuel pumping elements.
Claim 4
Dependent Claim
66 words
A fuel pump assembly as claimed in claim 1, in which said assembly further includes a fuel tank which comprises a self-contained receptacle having a vertically extending aperture therein and sump means in a bottom wall of said receptacle substantially vertically aligned with said aperture and suspension means disposed in said aperture to support said cylindrical casing with the pumping elements received in said sump means.
Claim 5
Dependent Claim
41 words
A fuel pump assembly as claimed in claim 1, in which said pumping elements include a disc having a plurality of radially extending slotways, rollers in said slotways and means comprising an annular plate element encompassing said rollers and said disc.
Claim 6
Dependent Claim
32 words
A fuel assembly as claimed in claim 4, in which bolt means are arranged to extend through perforations in said annular plate element and means defining openings in said respective cover elements.
Claim 7
Dependent Claim
23 words
A fuel assembly as claimed in claim 4, in which a suction chamber is provided between said disc and said annular plate element.
Claim 8
Dependent Claim
41 words
A fuel pump assembly as claimed in claim 1, in which said front cover for said casing has a forward asymmetrical area constricted toward said shaft means, said forward asymmetrical area arranged to abut said planar wall of said pumping elements.
Claim 9
Dependent Claim
40 words
A fuel pump assembly as claimed in claim 1, in which said casing is secured to said front cover by a clamping means, a seal member disposed between said front cover and said casing and retained by said clamping means.
Claim 10
Dependent Claim
20 words
A fuel pump assembly as claimed in claim 8, in which said front cover is fastened to said further cover.
Claim 11
Dependent Claim
18 words
A fuel pump assembly as claimed in claim 3, in which said suspension means includes a resilient member.
Claim 12
Dependent Claim
18 words
A fuel pump assembly as claimed in claim 10, in which said resilient member comprises a sleeve-like element.
Claim 13
Dependent Claim
36 words
A fuel pump assembly as claimed in claim 3, in which said sump means comprises a swirl chamber which encircles said sump means and said swirl chamber is secured to said bottom wall of said receptacle.
Claim 14
Dependent Claim
18 words
A fuel pump assembly as claimed in claim 12, in which said swirl chamber includes a filter means.
Claim 15
Dependent Claim
33 words
A fuel pump assembly as claimed in claim 12, in which said swirl chamber is penetrated by a conduit arranged to transport gases away from said pump assembly and upwardly into said receptacle.
Claim 16
Dependent Claim
33 words
A fuel pump assembly as claimed in claim 12, in which said swirl chamber includes an upstanding annulus that encompasses a resilient element that encircles said cylindrical casing and forms a seal therewith.