CN105351132A - Piston structured supercharging device - Google Patents
Piston structured supercharging device Download PDFInfo
- Publication number
- CN105351132A CN105351132A CN201510924680.0A CN201510924680A CN105351132A CN 105351132 A CN105351132 A CN 105351132A CN 201510924680 A CN201510924680 A CN 201510924680A CN 105351132 A CN105351132 A CN 105351132A
- Authority
- CN
- China
- Prior art keywords
- piston
- cavity
- supercharging device
- opening
- cover body
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
Abstract
The invention provides a piston structured supercharging device which comprises a barrel and a piston, wherein the piston comprises two parts namely a large piston head and a small piston head; a closed accommodating cavity and a piston through cavity communicated with each other are sequentially arranged in the center of the barrel; the piston is positioned in the piston through cavity and can do reciprocating motion; the other end of the closed accommodating cavity is connected with the external through a detachable cover body in a sealing manner; the closed accommodating cavity is further connected with an open-close oil outlet mechanism communicated to the external; the part, communicated with closed accommodating cavity, of one side, positioned on the end face of the small piston head, in the piston through cavity, forms a closed supercharging space with the closed accommodating cavity; one end, opposite to the closed accommodating cavity, of the piston through cavity is sealed by the sealing cover body; the part, communicated with the sealing cover body, of one side, positioned on the end face of the large piston head, in the piston through cavity forms a closed pressure transporting space; the closed pressure transporting space is further connected with an open-close oil inlet mechanism. The piston structured supercharging device can solve the problem that high-pressure oil is difficult to establish in the existing diesel engine mist spray testbed.
Description
Technical field
The invention belongs to internal combustion engine technical field, is specifically related to a kind of piston cylinder operator supercharging device conveniently can setting up high pressure oil.
Background technique
In Modern Internal-Combustion Engine, particularly in the working procedure of high power high density diesel engine, atomize and air-fuel mixture occupy very consequence.It is one of three elements (oil, gas, room) in combustion process of the internal-combustion engine.
Real engine is difficult to effectively measure and observe these situations of change.Therefore, engineering carries out spray testing research often through the method for constant volume bullet or optical engine bench simulation test, to finding out the situation of oil sprayer SPRAY MOTION.
For realizing the test of spraying in the constant volume bullet and optical engine, usually need to set up superelevation oil pressure, usual way is that application monoblock pump or high-pressure common rail mode set up high pressure oil, realizes spray testing for oil sprayer fuel feeding.But to purchase and to build this kind of equipment voluntarily very inconvenient, add experimentation cost, and the oil pressure set up is lower.
The object of the invention is to solve the problem, design provides a kind of piston cylinder operator supercharging device can set up high pressure oil easily, for oil sprayer fuel feeding realizes spray testing.Application the present invention saves experimentation cost to reach, raises the efficiency object.
Summary of the invention
The invention is difficult to set up the problem of high pressure oil in existing diesel spray testing platform in order to solve, and a kind of piston cylinder operator supercharging device proposed, save experimentation cost, improve test efficiency.
The piston cylinder operator supercharging device that the invention provides, comprises cylindrical shell and piston, and described piston comprises piston major part and piston microcephaly two-part; Described cylindrical shell central authorities are disposed with mutually through closed containing cavity and piston cavity, and described piston is positioned at described piston cavity and can in the to-and-fro motion of piston cavity; The described closed containing cavity the other end realizes being tightly connected with extraneous by detachable lid, described closed containing cavity be also connected with lead to extraneous can opening and closing oil outlet mechanism, be positioned at part that piston little end surface side is communicated with described closed containing cavity in described piston cavity, cooperatively form an airtight plenum space together with described closed containing cavity; On described piston cavity, one end relative with described closed containing cavity is sealed by sealing cover body, be positioned at the part that piston big end surface side is communicated with described sealing cover body in described piston cavity and form an airtight defeated pressure space, described defeated pressure space be also connected with lead to extraneous can opening and closing oil-inlet mechanism.
Further, described piston cavity comprises also confession reciprocating first cavity of described piston microcephaly matched with described piston small head external diameter and reciprocating 3rd cavity of the also described piston major part of confession matched with described piston large head external diameter, diameter is also provided with between this second cavity therebetween between described first cavity and the 3rd cavity, wherein, the second terrace that described second cavity and the 3rd cavity join can be used for the spacing of piston.
Further, also spring is provided with in described piston cavity, described spring one end is fixed on the first terrace that in cylindrical shell, the first cavity and the second cavity join, and the other end is fixed on piston major part on the bottom surface of piston microcephaly side, for realizing automatically reseting of piston.
Further, describedly can adopt Performance of Fuel Injection Nozzle by opening and closing oil outlet mechanism, fit system adopts the tolerance fit of Performance of Fuel Injection Nozzle.
Further, describedly can be arranged on described sealing cover body by opening and closing oil-inlet mechanism.Preferably, described cylindrical shell, sealing cover body and combination seal can be adopted by opening and closing oil-inlet mechanism.
Further, describedly cylindrical shell side can be arranged at by opening and closing oil outlet mechanism.
The invention structure is simple, it is rationally reliable to arrange, can easily for oil sprayer provides high pressure oil.The mode such as high-pressure common rail, monoblock pump, inline pump can set up high pressure oil under normal circumstances, and it is set up oil pressure and is generally no more than 180Mpa, and test corollary equipment is many, and cost is high.Need to set up more than 180Mpa high pressure oil in single spray test situation, conventional equipment cannot meet, and the invention can realize single and set up more than high pressure oil 200Mpa, saves experimentation cost, improves test efficiency.In addition, by the external diameter ratio of adjustment piston major part with piston microcephaly, can set up high pressure oil and realize simultaneously effective adjustment of oil pressure, test accuracy rate is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of mode of execution of the invention.
Wherein, 1-cylindrical shell; 2-piston; 21-piston major part; 22-piston microcephaly; 3-closed containing cavity; 4-piston cavity; 41-first cavity; 42-second cavity; 43-the 3rd cavity; 44-first terrace; 45-second terrace; The detachable lid of 5-; 6-can opening and closing oil outlet mechanism; 7-sealing cover body; 8-can opening and closing oil-inlet mechanism; 9-spring.
Embodiment
Below by being further described the invention by reference to the accompanying drawings.
As the structural representation that Fig. 1 is a kind of mode of execution of the invention, comprise cylindrical shell 1 and piston 2, described piston 2 comprises piston major part 21 and piston microcephaly 22 two-part; Described cylindrical shell 1 central authorities are disposed with mutually through closed containing cavity 3 and piston cavity 4, and described piston 2 is positioned at described piston cavity 4 and can in piston cavity 4 to-and-fro motion; Described closed containing cavity 3 the other end realizes being tightly connected with extraneous by detachable lid 5, described closed containing cavity 3 be also connected with lead to extraneous can opening and closing oil outlet mechanism 6, be positioned at part that piston microcephaly 22 end face side is communicated with described closed containing cavity 3 in described piston cavity 4, cooperatively form an airtight plenum space together with described closed containing cavity 3; One end relative with described closed containing cavity 3 on described piston cavity 4 is sealed by sealing cover body 7, be positioned at the part that piston major part 21 end face side is communicated with described sealing cover body 7 in described piston cavity 4 and form an airtight defeated pressure space, described defeated pressure space be also connected with lead to extraneous can opening and closing oil-inlet mechanism 8.
Wherein, described piston cavity 4 comprises also confession reciprocating first cavity 41 of described piston microcephaly 22 matched with described piston microcephaly 22 external diameter and reciprocating 3rd cavity 43 of the also described piston major part 21 of confession matched with described piston major part 21 external diameter, diameter is also provided with between this second cavity 42 therebetween between described first cavity 41 and the 3rd cavity 43, wherein, the second terrace 45 that described second cavity 42 and the 3rd cavity 43 join can be used for the spacing of piston 2.
Wherein, spring 9 is also provided with in described piston cavity 4, described spring 9 one end is fixed on the first terrace 44 that in cylindrical shell 1, first cavity 41 and the second cavity 42 join, and the other end is fixed on piston major part 21 on the bottom surface of piston microcephaly 22 side, for realizing automatically reseting of piston 2.
Wherein, describedly can adopt Performance of Fuel Injection Nozzle by opening and closing oil outlet mechanism 6, fit system adopts the tolerance fit of Performance of Fuel Injection Nozzle.
Wherein, describedly can be arranged on described sealing cover body 7 by opening and closing oil-inlet mechanism 8.Preferred in this example, described cylindrical shell 1, sealing cover body 7 with can adopt combination seal by opening and closing oil-inlet mechanism 8.
Wherein, describedly cylindrical shell 1 side can be arranged at by opening and closing oil outlet mechanism 6.
The concise and to the point working procedure of the invention comprises: by low pressure oil way with can be connected by opening and closing oil-inlet mechanism 8, high-pressure oil passage with can be connected by opening and closing oil outlet mechanism 6.A certain amount of test oil is injected closed containing cavity 3 from the passage of detachable lid 5, then screws detachable lid 5 and one end of closed containing cavity 3 is sealed.Low pressure oil can enter airtight defeated pressure space by opening and closing oil-inlet mechanism 8 certainly through low pressure oil way, along with low pressure oil enters, pressure acts on piston major part 21, that piston 2 moves to closed containing cavity 3 direction, piston microcephaly 22 extrudes plenum space and sets up high pressure oil, high pressure oil oil pump capacity can be controlled by opening and closing oil outlet mechanism 6, after the fuel-displaced end of high pressure oil, low pressure oil can exit airtight defeated pressure space by opening and closing oil-inlet mechanism 8 certainly through low pressure oil way, piston 2 resets under the elastic force effect of spring 9, completes a high pressure oil output procedure.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the invention.
Claims (7)
1. a piston cylinder operator supercharging device, comprises cylindrical shell and piston, and described piston comprises piston major part and piston microcephaly two-part; Described cylindrical shell central authorities are disposed with mutually through closed containing cavity and piston cavity, and described piston is positioned at described piston cavity and can in the to-and-fro motion of piston cavity; The described closed containing cavity the other end realizes being tightly connected with extraneous by detachable lid, described closed containing cavity be also connected with lead to extraneous can opening and closing oil outlet mechanism, be positioned at part that piston little end surface side is communicated with described closed containing cavity in described piston cavity, cooperatively form an airtight plenum space together with described closed containing cavity; On described piston cavity, one end relative with described closed containing cavity is sealed by sealing cover body, be positioned at the part that piston big end surface side is communicated with described sealing cover body in described piston cavity and form an airtight defeated pressure space, described defeated pressure space be also connected with lead to extraneous can opening and closing oil-inlet mechanism.
2. a kind of piston cylinder operator supercharging device according to claim 1, it is characterized in that, described piston cavity comprises also confession reciprocating first cavity of described piston microcephaly matched with described piston small head external diameter and reciprocating 3rd cavity of the also described piston major part of confession matched with described piston large head external diameter, diameter is also provided with between this second cavity therebetween between described first cavity and the 3rd cavity, wherein, the second terrace that described second cavity and the 3rd cavity join can be used for the spacing of piston.
3. a kind of piston cylinder operator supercharging device according to claim 2, it is characterized in that, also spring is provided with in described piston cavity, described spring one end is fixed on the first terrace that in cylindrical shell, the first cavity and the second cavity join, the other end is fixed on piston major part on the bottom surface of piston microcephaly side, for realizing automatically reseting of piston.
4. a kind of piston cylinder operator supercharging device according to claim 1, is characterized in that, describedly can adopt Performance of Fuel Injection Nozzle by opening and closing oil outlet mechanism, and fit system adopts the tolerance fit of Performance of Fuel Injection Nozzle.
5. a kind of piston cylinder operator supercharging device according to claim 1, is characterized in that, describedly can be arranged on described sealing cover body by opening and closing oil-inlet mechanism.
6. a kind of piston cylinder operator supercharging device according to claim 5, is characterized in that, described cylindrical shell, sealing cover body and can adopt combination seal by opening and closing oil-inlet mechanism.
7. a kind of piston cylinder operator supercharging device according to claim 1, is characterized in that, describedly can be arranged at cylindrical shell side by opening and closing oil outlet mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510924680.0A CN105351132A (en) | 2015-12-11 | 2015-12-11 | Piston structured supercharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510924680.0A CN105351132A (en) | 2015-12-11 | 2015-12-11 | Piston structured supercharging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105351132A true CN105351132A (en) | 2016-02-24 |
Family
ID=55327175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510924680.0A Pending CN105351132A (en) | 2015-12-11 | 2015-12-11 | Piston structured supercharging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105351132A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE615157C (en) * | 1932-03-31 | 1935-06-28 | Expl Du Generateur A Piston Li | Fuel injection pump for internal combustion engines |
| CN1127842A (en) * | 1994-07-08 | 1996-07-31 | 三菱自动车工业株式会社 | Pressure stored fuel spraying device |
| GB2324343B (en) * | 1997-04-18 | 1999-08-04 | Bosch Gmbh Robert | Fuel-injection device providing a pre-injection and main injection procedure in an internal combustion engine |
| CN1241243A (en) * | 1997-10-02 | 2000-01-12 | 罗伯特·博施有限公司 | Liquid control valve |
| CN1322278A (en) * | 1999-09-24 | 2001-11-14 | 罗伯特·博施有限公司 | Fuel injection system and method for internal combustion engines |
| CN1788154A (en) * | 2004-03-01 | 2006-06-14 | 丰田自动车株式会社 | Fuel injection amount correction method for pressure boosting fuel injection apparatus |
| CN1833102A (en) * | 2003-08-01 | 2006-09-13 | 罗伯特·博世有限公司 | Control valve for a fuel injector that contains a pressure intensifier |
| CN1873211A (en) * | 2006-06-13 | 2006-12-06 | 天津大学 | Generation system for adjusting fuel injection pressure in hyperpressure for diesel engine |
-
2015
- 2015-12-11 CN CN201510924680.0A patent/CN105351132A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE615157C (en) * | 1932-03-31 | 1935-06-28 | Expl Du Generateur A Piston Li | Fuel injection pump for internal combustion engines |
| CN1127842A (en) * | 1994-07-08 | 1996-07-31 | 三菱自动车工业株式会社 | Pressure stored fuel spraying device |
| GB2324343B (en) * | 1997-04-18 | 1999-08-04 | Bosch Gmbh Robert | Fuel-injection device providing a pre-injection and main injection procedure in an internal combustion engine |
| CN1241243A (en) * | 1997-10-02 | 2000-01-12 | 罗伯特·博施有限公司 | Liquid control valve |
| CN1322278A (en) * | 1999-09-24 | 2001-11-14 | 罗伯特·博施有限公司 | Fuel injection system and method for internal combustion engines |
| CN1833102A (en) * | 2003-08-01 | 2006-09-13 | 罗伯特·博世有限公司 | Control valve for a fuel injector that contains a pressure intensifier |
| CN1788154A (en) * | 2004-03-01 | 2006-06-14 | 丰田自动车株式会社 | Fuel injection amount correction method for pressure boosting fuel injection apparatus |
| CN1873211A (en) * | 2006-06-13 | 2006-12-06 | 天津大学 | Generation system for adjusting fuel injection pressure in hyperpressure for diesel engine |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160224 |