Reciprocating electromagnetic pump
A piston in a pump reciprocates by using forces of repulsion and attraction for an electromagnetic element toward a magnetic element. So fluid is pumped and guided with the help of several valves at different places in the pump.
The present invention relates to a pump; more particularly, relates to driving a piston having a magnetic element and a hollow flow path to reciprocate for pumping a fluid by using an electromagnetic element on a shell.
DESCRIPTION OF THE RELATED ARTSGeneral pumps include rotating pumps and reciprocating pumps, which are driven by motors to move blades or pistons to pump fluids. The fluids of the pumps may leak owing to defects or abrasions of the pumps; or, the pumps may even further fail in obtaining required fluid pressures.
A prior art, “a liquid-cooling heat sink pump”, is proclaimed in Taiwan, as shown in
Another prior art, “Pumping assembly using treadle”, is proclaimed in Taiwan as shown in
Although the above prior arts pump fluids, their efficiencies may not remain the same after a period of use resulting in damage or aging. Or, the lockings of the parts may be loosened resulting in leaking the fluid. Hence, the prior arts do not fulfill users' requests on actual use.
SUMMARY OF THE INVENTIONThe main purpose of the present invention is to pump fluid with an improved leakage prevention.
To achieve the above purpose, the present invention is an electromagnetic reciprocating pump, comprising a shell having a fluid entrance and a fluid exit; a piston deposed in the shell; and an electromagnetic element at the outside, where an entrance check valve is deposed at the fluid entrance; an exit check valve is deposed at the fluid exit; the piston divides the shell into a first room and a second room; the piston has a hollow flow path along an axis of the piston, and a piston check valve at an end of the flow path; magnetic elements are deposed at two ends of the piston; the shell has electromagnetic elements deposed at two ends, or has an electromagnetic element covered on the side surface; the electromagnetic element is connected with an electric power supplier to obtain pole of the electromagnetic element to produce forces of attraction and repulsion toward the magnetic element of the piston for the piston to reciprocate; fluid is controlled by the entrance check valve, the exit check valve and the piston check valve to flow in one-way direction. Accordingly, a novel electromagnetic reciprocating pump is obtained.
BRIEF DESCRIPTION OF THE DRAWINGSThe present invention will be better understood from the following detailed descriptions of the preferred embodiments according to the present invention, taken in conjunction with the accompanying drawings, in which
The following descriptions of the preferred embodiments are provided to understand the features and the structures of the present invention.
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The shell 11 has the fluid entrance 111 and the fluid exit 112 at two ends; the fluid entrance 111 and the fluid exit 112 are connected with tubes 2 respectively; an entrance check valve 1111 and an exit check valve 1121 are respectively deposed at places where the tubes 2 are connected with the fluid entrance 111 and the fluid exit 112; the entrance check valve 1111 controls an entrance of fluid into the pump 1; and, the exit check valve 1111 controls an exit of the fluid from the pump 1.
The piston 12 is deposed in the shell 11 with a space for reciprocating the piston 12; the piston 12 divides the shell 11 into a first room 113 and a second room 114; the piston 12 has a one-way flow path 121 along an axis of the piston 12; the piston check valve 122 controls and guides fluid to pass through the flow path 121; and, the piston 12 has a magnetic element 123 at each end.
The electromagnetic elements 13 are deposed at two ends of the shell 1 respectively and are connected with an electric power supplier. When a current is supplied, poles of the magnetic elements 123 at two ends of the piston 12 and poles of the electromagnetic elements 13 at two ends of the shell produce forces of repulsion or attraction to reciprocate the piston 12.
The pump 1 is driven by magnetism. By connecting the electromagnetic elements 13 at two ends the shell 11 to an outside power supplier, a current passes through the electromagnetic elements 13 to obtain poles of the electromagnetic elements 13 so that the piston 12 is driven to reciprocate by forces of repulsion and attraction.
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To sum up, the present invention is an electromagnetic reciprocating pump, where the pump reciprocates with saved small space; and the pump is improved in its leakage prevention by deposing several check valves and using electromagnetic driving mechanism.
The preferred embodiments herein disclosed are not intended to unnecessarily limit the scope of the invention. Therefore, simple modifications or variations belonging to the equivalent of the scope of the claims and the instructions disclosed herein for a patent are all within the scope of the present invention.
Claims
1. An electromagnetic reciprocating pump, comprising:
- a shell, said shell comprising a first room, a second room, a fluid entrance, and a fluid exit, wherein an entrance check valve is deposed at said fluid entrance and an exit check valve is deposed at said fluid exit;
- a piston, wherein said piston is deposed in said shell, wherein said piston has a hollow flow path, wherein a piston check valve is deposed at an end of said flow path, and wherein said piston has a magnetic element; and
- a pair of electromagnetic elements, wherein said pair of electromagnetic elements is deposed on two ends of said shell respectively.
2. The pump according to claim 1,
- wherein a fluid flows to said first room from said fluid entrance through said entrance check valve; and
- where in said entrance check valve prevents said fluid from returning to said fluid entrance from said first room.
3. The pump according to claim 1,
- wherein a fluid flows to said second room from said fluid exit through said exit check valve; and
- wherein said exit check valve prevents said fluid from returning to said second room from said exit entrance.
4. The pump according to claim 1,
- where in a fluid flows to said second room from said first room through said piston check valve; and
- wherein said exit check valve prevents said fluid from returning to said first room from said second room.
5. The pump according to claim 1,
- wherein said magnetic element covers on a side surface of said piston.
6. The pump according to claim 1,
- wherein said magnetic element is deposed on both ends of said piston.
7. An electromagnetic reciprocating pump, comprising:
- a shell, said shell having a fluid entrance, and a fluid exit, wherein an entrance check valve is deposed at said fluid entrance and an exit check valve is deposed at said fluid exit;
- a piston, wherein said piston is deposed in said shell, wherein said piston has a hollow flow path, wherein a piston check valve is deposed at an end of said flow path, and wherein said piston has a magnetic element; and
- an electromagnetic elements, wherein said electromagnetic element covers on a side surface of said electro-magnetic element.
8. The pump according to claim 7,
- wherein said magnetic element covers on a side surface of said piston.
9. The pump according to claim 7,
- where in said magnetic element is deposed on both ends of said piston.
Type: Application
Filed: Mar 17, 2006
Publication Date: Sep 20, 2007
Inventors: Han-Chieh Chiu (Yongho City), Hung-Wei Yeh (Taipei), Jer-Huan Jang (Taipei)
Application Number: 11/377,271
International Classification: F04B 35/04 (20060101);