CN102840128A - Novel plunger pump device - Google Patents

Novel plunger pump device Download PDF

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Publication number
CN102840128A
CN102840128A CN2012103310848A CN201210331084A CN102840128A CN 102840128 A CN102840128 A CN 102840128A CN 2012103310848 A CN2012103310848 A CN 2012103310848A CN 201210331084 A CN201210331084 A CN 201210331084A CN 102840128 A CN102840128 A CN 102840128A
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CN
China
Prior art keywords
plunger
pump
pump housing
plunger pump
way valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2012103310848A
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Chinese (zh)
Inventor
陈行
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University ZJU
Original Assignee
Zhejiang University ZJU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CN2012103310848A priority Critical patent/CN102840128A/en
Publication of CN102840128A publication Critical patent/CN102840128A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a novel plunger pump device. A ring of folding spring isolating rings and a flat plate are additionally arranged in a traditional plunger pump, so that the pump cavity of the plunger pump is divided into inner and outer parts; the inner cavity contains medium with low viscosity; and the outer cavity contains oil with high viscosity. The novel plunger pump device is big in output pressure, big in unit rate of flow, high in efficiency and small in size.

Description

A kind of novel plunger pump device
Technical field
The present invention relates to a kind of novel plunger pump device, relate in particular to a kind of radial plunger pump-unit that medium is water or other low viscous media that is used for.
Background technique
The radial plunger pump pump chamber that circulates on the existing market is integral type.Though when the bigger medium of pump viscosity, can export very high pressure, when medium is a water, during the very low liquid of viscosity such as gasoline, owing to reasons such as leakages, delivery pressure is not high enough, and efficient is relative also lower.
Summary of the invention
The objective of the invention is deficiency, a kind of novel radial plunger pump-unit is provided to existing technology.The present invention is a water at medium, during the very low liquid of viscosity such as gasoline, can reach very high delivery pressure, and volumetric efficiency is also very high, and specific discharge is very big, and volume is little, and is simple in structure.
In order to achieve the above object, the technological scheme that the present invention adopts is following: a kind of plunger pump device, and it comprises input one-way valve, output one-way valve, folding spring cage ring, flat board, plunger, eccentric shaft, the pump housing and spring; Wherein, The input one-way valve is fixed on above the sidewall of the pump housing with the output one-way valve, and the folding spring cage ring places in the pump housing, and top is airtight to be fixed on the pump housing inwall; The airtight connection in bottom is dull and stereotyped, and the folding spring cage ring is divided into inner chamber part and outer cavity segment with dull and stereotyped pump chamber with plunger pump; The oil of viscosity factor greater than water is housed in the outer cavity segment; Plunger places in the plunger hole of pump housing bottom, and eccentric shaft is positioned at the below of plunger and contacts with plunger, and spring one end is fixed on the top of the pump housing, and an end is connected with flat board after stretching into the folding spring cage ring.
Further, in the bottom of said flat board and the top of plunger one spring can be installed.
The invention has the beneficial effects as follows:
1, delivery pressure is high, and specific discharge is big, and efficient is high;
2, simple and compact for structure, volume is little;
3, cost is low.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is a principle schematic of the present invention.
Fig. 2 is a working procedure schematic representation of the present invention.
Among the figure: input one-way valve 1, output one-way valve 2, folding spring cage ring 3, flat board 4, plunger 5, eccentric shaft 6, the pump housing 7, spring 8.
 
Embodiment
As illustrated in fig. 1 and 2, the novel plunger pump device of the present invention comprises input one-way valve 1, output one-way valve 2, folding spring cage ring 3, flat board 4, plunger 5, eccentric shaft 6, the pump housing 7 and spring 8.Input one-way valve 1 is fixed on above the sidewall of the pump housing 7 with output one-way valve 2; Folding spring cage ring 3 places in the pump housing 7; Top is airtight to be fixed on the pump housing 7 inwalls; The airtight connection flat board 4 in bottom, folding spring cage ring 3 is divided into inner chamber part and outer cavity segment with dull and stereotyped 4 pump chambers with plunger pump; The oil of viscosity factor greater than water is housed in the outer cavity segment; Plunger 5 places in the plunger hole of the pump housing 7 bottoms, and eccentric shaft 6 is positioned at the below of plunger 5 and contacts with plunger 5, and spring 8 one ends are fixed on the top of the pump housing 7, and an end stretches into folding spring cage ring 3 backs and is connected with dull and stereotyped 4.
Another spring can be installed in the bottom dull and stereotyped 4 and the top of plunger 5.
The present invention has added a circle folding spring cage ring 3 and one flat plate 4 in traditional radial plunger pump, the pump chamber of radial plunger pump is divided into inside and outside two-part; Inner chamber partly is the very low medium of viscosity, and outer cavity segment is the big oil of viscosity.
Operation working principle of the present invention is following:
The eccentric shaft 6 of plunger pump device of the present invention is connected with the output shaft of motor, and input one-way valve 1 is connected with outside input media source.
Shown in Figure 1 is initial state, position in the plunger 5 of radial plunger pump is positioned at, and the medium of pump chamber inner chamber is in minimum state.When 6 rotations of driven by motor eccentric shaft, plunger 5 is outward under the effect of oil.The exocoel partial pressure reduces, and the pressure of the medium of inner chamber part is greater than the pressure of the oil of outer cavity segment, and under this action of pressure, dull and stereotyped 4 outwards motions make the inner cavity partial pressure reduce then, the output closed check valve, and the input one-way valve opens begins water inlet.When eccentric shaft went to position shown in Figure 2, plunger 5 was positioned at outermost position, and the medium of inner chamber part is maximum, water inlet end.When eccentric shaft 6 continues rotation, plunger 5 beginnings motion inward.The oil of outer cavity segment is compressed, and pressure raises; The pressure of the oil of outer cavity segment is greater than the pressure of inner chamber medium.Under this action of pressure, dull and stereotyped 4 motions inwards make the pressure of inner chamber medium raise then, input closed check valve, output one-way valve opens, beginning delivery pressure medium.When eccentric shaft 6 continues to rotate to the state of Fig. 1, get back to initial state again.So go round and begin again, circulation endlessly can continuous delivery pressure water.
Because folding spring cage ring 3 is divided into inside and outside two-part with dull and stereotyped 4 pump chambers with plunger pump.The inner chamber part separates with outer cavity segment fully; The medium of inner chamber part can not leak into exocoel at all; Therefore the efficient of the delivery pressure of medium and pump all can be worked as with the higher oil phase of viscosity, can reach very high delivery pressure and efficient, and therefore flow can not reduce.Certainly, inner chamber also can be gasoline, other low viscous media such as diesel oil. 
The foregoing description is used for the present invention that explains, rather than this aspect is limited, and in the protection domain of spirit of the present invention and claim, any modification and change to make this aspect all fall into protection scope of the present invention.

Claims (2)

1. a plunger pump device is characterized in that, it comprises input one-way valve (1), output one-way valve (2), folding spring cage ring (3), dull and stereotyped (4), plunger (5), eccentric shaft (6), the pump housing (7) and spring (8) etc.; Wherein, Input one-way valve (1) and output one-way valve (2) are fixed on the sidewall top of the pump housing (7); Folding spring cage ring (3) places in the pump housing (7); Top is airtight to be fixed on the pump housing (7) inwall, the airtight connection in bottom dull and stereotyped (4), and folding spring cage ring (3) and dull and stereotyped (4) are divided into inner chamber part and outer cavity segment with the pump chamber of plunger pump; The oil of viscosity factor greater than water is housed in the outer cavity segment; Plunger (5) places in the plunger hole of the pump housing (7) bottom; Eccentric shaft (6) is positioned at the below of plunger (5) and contacts with plunger (5); Spring (8) one ends are fixed on the top of the pump housing (7), and an end stretches into folding spring cage ring (3) back and is connected with dull and stereotyped (4).
2. according to the said a kind of novel plunger pump device of claim 1, it is characterized in that, a spring can be installed in the bottom of said flat board (4) and the top of plunger (5).
CN2012103310848A 2012-09-10 2012-09-10 Novel plunger pump device Pending CN102840128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012103310848A CN102840128A (en) 2012-09-10 2012-09-10 Novel plunger pump device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012103310848A CN102840128A (en) 2012-09-10 2012-09-10 Novel plunger pump device

Publications (1)

Publication Number Publication Date
CN102840128A true CN102840128A (en) 2012-12-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012103310848A Pending CN102840128A (en) 2012-09-10 2012-09-10 Novel plunger pump device

Country Status (1)

Country Link
CN (1) CN102840128A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104088769A (en) * 2014-08-01 2014-10-08 吉首大学 Eccentric adjustable plunger pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6109894A (en) * 1994-11-07 2000-08-29 Chatelain; Michel Dual piston pump device for feeding two independent liquids
CN2721909Y (en) * 2004-08-03 2005-08-31 李伯卿 Plunger pump
CN2890410Y (en) * 2005-12-30 2007-04-18 丛阳滋 Hydraulic plunger diaphragm type water elevator
CN201593496U (en) * 2010-02-03 2010-09-29 中国石油天然气股份有限公司 Special high-pressure reciprocating pump inlet stabilizator
US20100294614A1 (en) * 2007-12-28 2010-11-25 Theodor Gassmann Hydraulic assembly for a force-operated setting unit
CN201865875U (en) * 2010-11-23 2011-06-15 陈灵军 Oil-free single-cylinder plunger pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6109894A (en) * 1994-11-07 2000-08-29 Chatelain; Michel Dual piston pump device for feeding two independent liquids
CN2721909Y (en) * 2004-08-03 2005-08-31 李伯卿 Plunger pump
CN2890410Y (en) * 2005-12-30 2007-04-18 丛阳滋 Hydraulic plunger diaphragm type water elevator
US20100294614A1 (en) * 2007-12-28 2010-11-25 Theodor Gassmann Hydraulic assembly for a force-operated setting unit
CN201593496U (en) * 2010-02-03 2010-09-29 中国石油天然气股份有限公司 Special high-pressure reciprocating pump inlet stabilizator
CN201865875U (en) * 2010-11-23 2011-06-15 陈灵军 Oil-free single-cylinder plunger pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104088769A (en) * 2014-08-01 2014-10-08 吉首大学 Eccentric adjustable plunger pump

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C02 Deemed withdrawal of patent application after publication (patent law 2001)
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Application publication date: 20121226