U.S. patent application number 09/911803 was filed with the patent office on 2003-01-30 for spiral fluted wheel for a water pump.
This patent application is currently assigned to Sea Chung Electric Co., Ltd.. Invention is credited to Tsui, Shu-Chen.
Application Number | 20030021688 09/911803 |
Document ID | / |
Family ID | 25430885 |
Filed Date | 2003-01-30 |
United States Patent
Application |
20030021688 |
Kind Code |
A1 |
Tsui, Shu-Chen |
January 30, 2003 |
SPIRAL FLUTED WHEEL FOR A WATER PUMP
Abstract
A spiral fluted wheel for a water pump is composed of a first
plate (10), a second plate (20) corresponding to the first plate
(10), and a plurality of spiral impellers (30) sandwiched between
the first plate (10) and the second plate (20). Each spiral
impeller (30) has planned complementary flanges so as to combine
with adjacent spiral impellers (30) easily and precisely.
Inventors: |
Tsui, Shu-Chen; (Taichung
Hsien, TW) |
Correspondence
Address: |
Jones, Tullar & Cooper, P.C.
Suite 1002
2001 Jefferson Davis Highway
Arlington
VA
22202
US
|
Assignee: |
Sea Chung Electric Co.,
Ltd.
|
Family ID: |
25430885 |
Appl. No.: |
09/911803 |
Filed: |
July 25, 2001 |
Current U.S.
Class: |
416/186R |
Current CPC
Class: |
F04D 29/2222
20130101 |
Class at
Publication: |
416/186.00R |
International
Class: |
F04D 029/24 |
Claims
What is claimed is:
1. A spiral fluted wheel for a water pump, and the spiral fluted
wheel comprising: a first plate (10) having a lock hole (110)
defined in a center of the first plate (10), and a periphery
defining the lock hole (110) adapted to be firmly secured on a
rotating device; a second plate (20) corresponding to the first
plate (10) and having an inlet aperture (220) defined in a center
of the second plate (20) for entry of water into the spiral fluted
wheel; and multiple spiral impellers (30) sandwiched between the
first plate (10) and the second plate (20), each spiral impeller
(30) having a spiral channel (330) defined therein and two flanges
(31, 32) laterally extending and complementary engaged to another
flange of an adjacent spiral impeller (30), whereby when the spiral
fluted wheel rotates and water travels into the spiral fluted wheel
via the inlet aperture and is centrifugally driven outwardly along
the spiral channels (300).
2. The spiral fluted wheel for a water pump as claimed in claim 1,
wherein each spiral impeller (30) having: a first flange (31)
having an outer convex portion (311) and an inner convex portion
(312) protruding outwardly, and a concave portion (314) defined in
a middle edge of the first flange (31); a second flange (32) has an
inner concave (322) and a convex portion (324) corresponding to the
inner convex portion (312) and the concave portion (314) of the
first flange (31) respectively.
3. The spiral fluted wheel for a water pump as claimed in claim 1,
wherein the spiral channel (330) of the spiral impeller (30) is
U-shaped.
4. The spiral fluted wheel for a water pump as claimed in claim 2,
wherein the spiral channel (330) of the spiral impeller (30) is
U-shaped.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a spiral fluted wheel for a
water pump, and more particularly to a spiral fluted wheel that can
be produced rapidly and precisely.
[0003] 2. Description of Related Art
[0004] Referring to FIGS. 3, and 4, a water pump with a
conventional multiple vane case comprises a shell (50), multiple
vane cases (51), multiple guide cases (52), a filter (53), a motor
(54) with an electricity supply wire (55), and a water outlet pipe
(56). The water pump is typically received in a well to draw water
therefrom.
[0005] The shell (50) contains the multiple vane cases (51) and the
multiple guide cases (52) in alternative with each other inside and
the filter (53) is mounted under the shell (50) to filtrate water
by its meshes. The motor (54) is secured under the filter (53) and
has an axle tube (540) penetrating the multiple vane cases (51) and
the multiple guide cases (52) and driving all cases (51, 52) to
rotate. The water pipe (56) is communicated with the shell (50) to
pump water out of the well.
[0006] In FIG. 4, the multiple guide cases (52) each has a
plurality of guide waterways (520) defined therein. The guide
waterways (520) communicate with two vane cases (51) adjacent to
the guide case (52).
[0007] The detail structure of the vane case (51) is shown
particularly in FIGS. 5 and 6. The vane case (51) is composed of an
upper plate (510), a lower plate (512) respectively combined with
the upper plate (510), and each combined pair of upper and lower
plates (510, 512) has a plurality of vane segments (60) sandwiched
therebetween.
[0008] The upper plate (510) is a round plate having a hole (5101)
defined in the center. The axle tube (540) (see FIG. 3) penetrates
and drivingly engages each upper plate (510) via mating with the
hole (5101) of the upper plate (510). The lower plate (512) is a
round plate corresponding to the upper plate (510) and an aperture
(not shown) is defined in the center of the lower plate (512). The
aperture has a larger diameter than a maximum diameter of the axle
tube (540) to allow water to flow into the vane segments (60). The
plurality of vane segments (60) has an inner wing (62) and an outer
wing (64) extending outwardly and laterally from a respective side
of the vane segment (60). The inner wing (62) is mated with the
outer wing (64) of an adjacent segment. Each wing has two
positioning holes (66) respectively defined in two ends
thereof.
[0009] In assembly, multiple vane segments (60) are gathered to
form a round combination and sandwiched between the upper plate
(510) and the lower plate (512). The round combination is combined
to both the upper and lower plates (510, 512) at the positioning
holes (66).
[0010] Now referring to FIG. 4 again, when the motor operates, the
axle tube (540) drives the multiple vane cases (51) to rotate to
cause a centrifugal force to water therein. Therefore, the water
inside the vane cases (51) starts to be expelled by the centrifugal
force and the water outside the vane cases (51) is filtrated by the
filter (54) and attracted into the multiple vane cases (51) via the
aperture of the lower plate (512). The rotating multiple vane cases
(51) cause a centrifugal force to the water so as to make the water
travel spirally along the channels made of the vane segments (60)
and be expelled from the vane cases (51).
[0011] When the water is expelled from the vane cases (51), the
guide waterways (520) of the guide cases (52) receive the expelled
water and spirally guide the water up to another of the upper vane
cases (51). Therefore, the water is pumped up gradually to reach
the water pipe (35) when the axle tube (330) rotates fast enough,
and then the water is pumped from the well.
[0012] However, two drawbacks exist in this conventional water pump
which are that a punching process is needed to form the positioning
holes (66) and this causes extra work to produce the vane case
(51). Additionally, fixing the vane segment (60) on the upper plate
(510) and the lower plate (512) by the position holes (66) one by
one is troublesome due to the necessary alignment of the
corresponding holes of both plates (510 512).
[0013] In order to make the water pump endurable and have more
efficiency, the present invention has arisen to mitigate and/or
obviate the disadvantages of the conventional vane cases.
SUMMARY OF THE INVENTION
[0014] The main objective of the present invention is to provide a
spiral fluted wheel for a water pump that can be combined rapidly
and precisely.
[0015] Further benefits and advantages of the present invention
will become apparent after a careful reading of the detailed
description with appropriate reference to the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] FIG. 1 is an exploded perspective view of a spiral fluted
wheel for a water pump in accordance with the present
invention;
[0017] FIG. 2 is a top cross-sectional view of the spiral fluted
wheel for a water pump in assembly in accordance with FIG. 1;
[0018] FIG. 3 is a partially cross-sectional side view of a water
pump with multiple conventional vane cases;
[0019] FIG. 4 is a side cross-sectional view of the vane cases and
the guide cases in combination;
[0020] FIG. 5 is a bottom cross-sectional view of the conventional
vane case in assembly; and
[0021] FIG. 6 is a perspective view of one vane segment of the
conventional vane case.
DETAILED DESCRIPTION OF THE INVENTION
[0022] With reference to FIG. 1, a spiral fluted wheel for a water
pump in accordance with the present invention comprises a first
plate (10), a second plate (20), and multiple spiral impellers
(30).
[0023] The first plate (10) of the spiral fluted wheel is a round
plate and a lock hole (110) is defined in the center of the first
plate (10). The lock hole (110) is adapted to be firmly secured on
an axle tube of the water pump to make the spiral fluted wheel
rotate with the axle tube when the axle tube rotates.
[0024] The second plate (20) of the spiral fluted wheel is a round
plate the same size as the first plate (10) and an inlet aperture
(220) is defined in the center of the second plate (20). The inlet
aperture (220) has larger diameter than a diameter of the axle tube
to leave some space between the second plate (20) and the axle tube
for entry of water into the spiral fluted wheel.
[0025] The multiple spiral impeller (30) are combined together to
form a sandwich layer with a plurality of channels between the
first plate (10) and the second plate (20).
[0026] In FIGS. 1 and 2, each spiral impeller (30) is partially
spiral-shaped and a spiral channel (300) is defined in a middle
portion of the spiral impeller (30). The spiral impeller (30) has a
flat bottom and two opposite thin sidewalls erected on the flat
bottom to construct and surround the spiral channel (330).
Additionally, the spiral impeller (30) has a first flange (31) and
a second flange (32) both extending laterally and outwardly from a
top of the respective side wall. Width and shape of the spiral
channel (300) is decided by the rotating speed of the water
pump.
[0027] The first flange (31) has an outer convex portion (311) and
an inner convex portion (312) protruding outwardly and a concave
portion (314) defined in a middle edge of the first flange (31).
The second flange (32) has an inner concave (322) and a convex
portion (324) corresponding to the inner convex portion (312) and
the concave portion (314) of the first flange (31) respectively,
i.e. the first flange (31) is complementary to the second flange
(32).
[0028] Therefore, the spiral impellers (30) are assembled to form
the vane layer between the first plate (10) and the second plate
(20). A required quantity of the spiral impellers (30) are combined
to compose a round combination by piecing the first flange (31) to
the second flange (32) of the adjacent spiral impeller (30)
together. The convex portions and the concave portions of both
flanges make the combination of vane layer precise and easy,
because of the planned shape of the complementary flanges (31,
32).
[0029] Then, the flat bottom of the spiral impeller (30) is welded
to an upper face of the second plate (20) and top faces of the
combined flanges (31, 32) are welded to a bottom face of the first
plate (10) to form the vane layer between the first plate (10) and
the second plate (20).
[0030] According to the above description, several advantages are
discovered and listed as following:
[0031] 1. Fast combination:
[0032] Because the planned convex and concave portions of the first
flange (31) correspond to the ones of the second flange (32), the
combination of the vane layer is easy and fast.
[0033] 2. precise combination:
[0034] The planned flanges (31, 32) and designed spiral channel
(300) make the vane layer precise and normalized in structure so
that water travels through the spiral channels (300) fluently.
Besides, manufacturers do not need any extra means, such as the
positioning holes in the conventional vane to compose the spiral
fluted wheel precisely.
[0035] Although the invention has been explained in relation to its
preferred embodiment, it is to be understood that many other
possible modifications and variations can be made without departing
from the spirit and scope of the invention as hereinafter
claimed.
* * * * *