JPH01148094U

JPH01148094U -

Info

Publication number: JPH01148094U
Application number: JP4340088U
Authority: JP
Priority date: 1988-03-31
Filing date: 1988-03-31
Publication date: 1989-10-13

Description

[Brief explanation of the drawing]

第１図及び第２図は本考案の実施例に係り、第
１図は固定シヤフトにコンミテータ、シム、Ｃ型
止め輪、止め輪補完部材を組付けた状態を示す燃
料ポンプの要部正面図、第２図は固定シヤフトに
嵌着するＣ型止め輪と止め輪補完部材の外観斜視
図、第３図ないし第６図は従来技術に係り、第３
図はタービン型燃料ポンプの縦断面図、第４図は
固定シヤフトにコンミテータ、シム、Ｃ型止め輪
を組付けた状態を示す燃料ポンプの要部正面図、
第５図はＣ型止め輪を拡大して示す外観斜視図、
第６図はスリーブの軸端面に形成された圧痕を示
す説明図である。５，２１……固定シヤフト、１１……アーマチ
ユア、１２……スリーブ、１３……コンミテータ
、１４，１５……シム、１６……Ｃ型止め輪、１
６Ｃ，２２Ｃ……シム摺接面、２２……止め輪補
完部材。 1 and 2 relate to an embodiment of the present invention, and FIG. 1 is a front view of the main parts of the fuel pump showing a state in which a commutator, a shim, a C-type retaining ring, and a retaining ring supplementary member are assembled to a fixed shaft. , FIG. 2 is an external perspective view of a C-shaped retaining ring fitted to a fixed shaft and a retaining ring complementary member, FIGS. 3 to 6 relate to the prior art, and FIG.
The figure is a longitudinal sectional view of a turbine-type fuel pump, and Figure 4 is a front view of the main parts of the fuel pump showing a state in which a commutator, shim, and C-type retaining ring are assembled to a fixed shaft.
Figure 5 is an enlarged external perspective view of the C-type retaining ring;
FIG. 6 is an explanatory view showing indentations formed on the shaft end surface of the sleeve. 5, 21... Fixed shaft, 11... Armature, 12... Sleeve, 13... Commutator, 14, 15... Shim, 16... C-type retaining ring, 1
6C, 22C...Shim sliding contact surface, 22...Retaining ring complementary member.

Claims

[Scope of utility model registration request]

A support shaft whose axially opposite ends are installed in the casing, a pump driving armature inserted into the support shaft, a commutator for supplying power to the armature, and a rotatable shaft support for the armature and the commutator with respect to the support shaft. In order to do this, a shim is fitted to the support shaft between a sleeve bearing provided on the end side of the armature and the shaft end of the sleeve bearing to restrict movement of the sleeve bearing in the axial direction. In a fuel pump comprising a C-shaped retaining ring, the support shaft is combined with the C-shaped retaining ring to form a shim sliding contact surface that is flush with the shim sliding contact surface of the C-shaped retaining ring. A fuel pump characterized in that a retaining ring complementary member is fitted.