CN111173587B - Pressure regulating method, regulating device and regulating system of PCV valve body - Google Patents
Pressure regulating method, regulating device and regulating system of PCV valve body Download PDFInfo
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- CN111173587B CN111173587B CN201911418445.0A CN201911418445A CN111173587B CN 111173587 B CN111173587 B CN 111173587B CN 201911418445 A CN201911418445 A CN 201911418445A CN 111173587 B CN111173587 B CN 111173587B
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- valve body
- pcv valve
- pressure value
- pcv
- diaphragm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/0011—Breather valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/0011—Breather valves
- F01M2013/0016—Breather valves with a membrane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/0011—Breather valves
- F01M2013/0022—Breather valves electromagnetic
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention belongs to the technical field of gas machines, and particularly relates to a pressure regulating method, a pressure regulating device and a pressure regulating system of a PCV valve body. The pressure regulating method of the PCV valve body comprises the following steps: acquiring a current pressure value of the PCV valve body; controlling gas in the PCV valve body to be introduced above the diaphragm according to the fact that the current pressure value of the PCV valve body is larger than the set pressure value; and controlling the atmosphere to be introduced above the diaphragm according to the condition that the current pressure value of the PCV valve body is not greater than the set pressure value. According to the pressure regulating method of the PCV valve body, the current pressure value of the PCV valve body is larger than the set pressure value, the gas in the PCV valve body is introduced above the diaphragm, the pressure in the PCV valve body can be ensured to be within the set pressure value, the current pressure value of the PCV valve body is not larger than the set pressure value, the atmosphere is controlled to enter above the diaphragm, and the pressure in the PCV valve body is enabled to be in a negative pressure state.
Description
Technical Field
The invention belongs to the technical field of gas machines, and particularly relates to a pressure regulating method, a pressure regulating device and a pressure regulating system of a PCV valve body.
Background
The existing PCV (Positive crank case Ventilation) valve structure comprises a diaphragm, a spring, an inlet and an outlet, wherein the spring force and the atmosphere generate pressure on the upper surface of the diaphragm, and the gas in the PCV valve body enables the diaphragm to reach an equilibrium state under the comprehensive action of the pressure of the lower surface of the diaphragm.
During closed cycle, the pressure of the PCV valve body must be kept negative, but the opening degree of the PCV valve is adjusted only by the atmosphere, the gas in the PCV valve body and the pressure of the spring, so that the requirement that the pressure in the PCV valve body is a negative value is difficult to guarantee.
Disclosure of Invention
The invention aims to at least solve the problem that the pressure in the PCV valve body is difficult to ensure to be a negative value in the existing method for controlling the pressure in the PCV valve body. The purpose is realized by the following technical scheme:
a first aspect of the present invention proposes a pressure regulating method of a PCV valve body, wherein the regulating method comprises the steps of:
acquiring a current pressure value of the PCV valve body;
controlling gas in the PCV valve body to be introduced above the diaphragm according to the fact that the current pressure value of the PCV valve body is larger than the set pressure value; and controlling the atmosphere to be introduced above the diaphragm according to the condition that the current pressure value of the PCV valve body is not greater than the set pressure value.
According to the pressure regulating method of the PCV valve body, the current pressure value of the PCV valve body is larger than the set pressure value, the gas in the PCV valve body is introduced above the diaphragm, the pressure in the PCV valve body can be ensured to be within the set pressure value, the current pressure value of the PCV valve body is not larger than the set pressure value, the atmosphere is controlled to enter above the diaphragm, and the pressure in the PCV valve body is enabled to be in a negative pressure state.
In addition, the pressure regulating method of the PCV valve according to the present invention may further have the following additional technical features:
in some embodiments of the present invention, controlling the passage of gas into the PCV valve above the diaphragm comprises:
and controlling the opening of a solenoid valve communicated with the PCV valve body to enable gas in the PCV valve body to be led to the upper part of the diaphragm.
In some embodiments of the invention, the controlling the atmosphere to pass above the membrane comprises:
and controlling the electromagnetic valve communicated with the PCV valve body to be closed, so that the atmosphere is introduced above the diaphragm.
In some embodiments of the present invention, the controlling solenoid further comprises, after the opening:
acquiring a pressure value of the PCV valve body after the electromagnetic valve is controlled to be opened;
and controlling atmosphere to be introduced above the diaphragm according to the fact that the pressure value of the PCV valve body is not larger than the set pressure value.
In another aspect of the present invention, a pressure regulating device of a PCV valve body for performing the above-described pressure regulating method of a PCV valve body is further provided, the exchange device including: the device comprises an acquisition unit and an on-off control unit, wherein:
the acquiring unit is used for acquiring the current pressure value of the PCV valve body;
the on-off control unit controls gas in the PCV valve body to be introduced above the diaphragm according to the fact that the current pressure value of the PCV valve body is larger than the set pressure value; and controlling the atmosphere to be introduced above the diaphragm according to the condition that the current pressure value of the PCV valve body is not greater than the set pressure value.
In another aspect of the present invention, a pressure regulating system of a PCV valve body is further provided, the pressure regulating system of the PCV valve body comprises the above pressure regulating device of the PCV valve body, and the memory stores the instructions of the above pressure regulating method of the PCV valve body;
the device also comprises a PCV valve body and an electromagnetic valve;
a supercharger connecting pipe is arranged on the PCV valve body, an outlet is arranged on the supercharger connecting pipe, a diaphragm is arranged in the PCV valve body, and an atmospheric vent is arranged on the PCV valve body corresponding to the diaphragm;
the outlet is communicated with the atmosphere hole through the electromagnetic valve, and the atmosphere hole is communicated with the atmosphere through the electromagnetic valve.
In some embodiments of the present invention, the solenoid valve comprises a solenoid valve body having a first inlet, a second inlet, and a third inlet disposed thereon; the first inlet is communicated with the outlet, the second inlet is communicated with the atmosphere hole, and the third inlet is communicated with the atmosphere.
In some embodiments of the present invention, the solenoid valve further includes a valve core disposed in the solenoid valve body, and the valve core moves along the solenoid valve body and can communicate the outlet with the atmospheric hole or communicate the atmospheric hole with the third inlet.
In some embodiments of the present invention, a cavity is disposed in the valve core, and a through hole is disposed in the valve core and is respectively communicated with the first inlet, the second inlet and the third inlet.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings.
In the drawings:
FIG. 1 schematically illustrates a flow chart of a method of pressure regulation of a PCV valve body according to an embodiment of the invention;
FIG. 2 schematically illustrates a schematic diagram of a pressure regulation system of a PCV valve body according to an embodiment of the invention.
1: an atmospheric vent; 2: an electromagnetic valve; 3: a valve core; 4: an electromagnetic valve body; 5: an outlet; 6: a first inlet; 7: a second inlet; 8: a third inlet; 9: a PCV valve body; 10: the booster connects the pipe.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1, the pressure regulation method of the PCV valve body in the present embodiment, wherein the regulation method includes the steps of:
s1, acquiring a current pressure value of the PCV valve body;
s2, controlling gas in the PCV valve body to be introduced above the diaphragm according to the fact that the current pressure value of the PCV valve body is larger than the set pressure value; and controlling the atmosphere to be introduced above the diaphragm according to the condition that the current pressure value of the PCV valve body is not greater than the set pressure value.
The PCV valve body is connected with the supercharger through a supercharger connecting pipe, the PCV valve body is connected with the crankcase through a crankcase connecting pipe, gas in the crankcase enters the PCV valve body, the gas in the PCV valve body flows to the supercharger connecting pipe, and the gas at the supercharger connecting pipe is controlled to be introduced above the diaphragm.
The current pressure value of the PCV valve body is larger than the set pressure value, gas in the PCV valve body is introduced above the diaphragm, the pressure in the PCV valve body can be ensured to be within the set pressure value, the current pressure value of the PCV valve body is not larger than the set pressure value, and atmosphere is controlled to enter the position above the diaphragm, so that the pressure in the PCV valve body is in a negative pressure state.
In some embodiments of the present invention, controlling the passage of gas into the PCV valve above the diaphragm comprises:
and controlling the opening of a solenoid valve communicated with the PCV valve body to enable gas in the PCV valve body to be led to the upper part of the diaphragm.
In some embodiments of the invention, the controlling the atmosphere to pass above the membrane comprises:
and controlling the electromagnetic valve communicated with the PCV valve body to be closed, so that the atmosphere is introduced above the diaphragm.
In some embodiments of the present invention, controlling the solenoid to open further comprises:
acquiring a pressure value of the PCV valve body after the electromagnetic valve is controlled to be opened;
and controlling the electromagnetic valve to be closed according to the fact that the pressure value of the PCV valve body is not larger than the set pressure value. After the electromagnetic valve is opened, the pressure is restored to a normal range, and the atmosphere is controlled to be introduced above the diaphragm, namely the electromagnetic valve is controlled to be closed.
Another aspect of the present invention also provides a pressure regulating device of a PCV valve body for performing the above-described pressure regulating method of a PCV valve body, the exchange device including: the device comprises an acquisition unit and an on-off control unit, wherein:
the acquiring unit is used for acquiring the current pressure value of the PCV valve body;
the on-off control unit is used for controlling gas in the PCV valve body to be introduced above the diaphragm according to the fact that the current pressure value of the PCV valve body is larger than the set pressure value; and controlling the atmosphere to be introduced above the diaphragm according to the condition that the current pressure value of the PCV valve body is not greater than the set pressure value.
As shown in fig. 2, another aspect of the present invention further provides a pressure regulating system of a PCV valve body, which includes the above-mentioned pressure regulating device of a PCV valve body, and a memory in which instructions of the above-mentioned pressure regulating method of the PCV valve body are stored;
the device also comprises a PCV valve body 9 and an electromagnetic valve 2;
a supercharger connecting pipe 10 is arranged on the PCV valve body 9, an outlet 5 is arranged on the supercharger connecting pipe 10, a diaphragm is arranged in the PCV valve body 9, and an atmospheric hole 1 is arranged on the PCV valve body 9 corresponding to the diaphragm;
the outlet 5 is communicated with an atmospheric hole 1 through an electromagnetic valve 2, and the atmospheric hole 1 is communicated with the atmosphere through the electromagnetic valve 2.
When the pressure is a positive value, the electromagnetic valve 2 closes the third inlet 8 communicated with the atmosphere according to a pressure signal of the PCV valve body 9, and the gas at the outlet 5 is communicated to the upper part of the diaphragm, so that the pressure in the PCV valve body is always in a negative pressure state, and the pressure of the PCV valve body 9 is returned to the negative pressure state. When the pressure is negative, the solenoid valve 2 opens the atmosphere above the diaphragm according to the pressure signal of the PCV valve 9.
In some embodiments of the present invention, the solenoid valve 2 comprises a solenoid valve body 4, and the solenoid valve body 4 is provided with a first inlet 6, a second inlet 7 and a third inlet 8; the first inlet 6 is communicated with the outlet 5, the second inlet 7 is communicated with the atmospheric hole 1, and the third inlet 8 is communicated with the atmosphere.
In some embodiments of the present invention, the solenoid valve 2 further includes a valve core 3 disposed in the solenoid valve body 4, and the valve core 3 moves along the solenoid valve body 4 and can communicate the outlet 5 with the atmospheric hole 1 or communicate the atmospheric hole 1 with the third inlet 8.
The valve core 3 opens the third inlet 8 and closes, and the gas enters the second inlet 7 through the outlet 5 and then enters the atmospheric hole 1 from the first outlet 5. The valve core 3 is closed, the third inlet 8 is communicated with the outside atmosphere, the first inlet 6 is closed, and gas passes through the second inlet 7 through the third inlet 8 and enters the atmospheric hole 1 to be introduced above the diaphragm.
In some embodiments of the present invention, a cavity is formed in the valve core 3, and a through hole is formed in the valve core 3 and is communicated with the first inlet 6, the second inlet 7 and the third inlet 8. Through-hole and cavity, the gas of being convenient for forms the gas circuit.
In the pressure regulating method of the PCV valve body, when the pressure is a negative value, the electromagnetic valve 2 does not act, the atmospheric hole 1 at the upper part of the diaphragm is communicated with the atmosphere, when the pressure is a positive value, the electromagnetic valve 2 closes a vent hole communicated with the atmosphere according to a pressure signal of the PCV valve body 9, the gas at the gas outlet is connected to the upper part of the diaphragm, so that the pressure in the PCV valve body is always in a negative pressure state, and the pressure of the PCV valve body 9 is returned to a negative pressure state.
In summary, in the pressure regulating method of the PCV valve according to the present invention, the current pressure value of the PCV valve 9 is greater than the set pressure value, the electromagnetic valve 2 is controlled to open, and the gas at the gas outlet is introduced above the diaphragm, so that it can be ensured that the pressure in the PCV valve 9 is within the set pressure value, the current pressure value of the PCV valve 9 is not greater than the set pressure value, and the electromagnetic valve 2 is controlled to close, thereby ensuring that the atmosphere enters above the diaphragm.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A pressure regulation method of a PCV valve body, characterized by comprising the steps of:
acquiring a current pressure value of the PCV valve body;
controlling gas in the PCV valve body to be introduced above the diaphragm according to the fact that the current pressure value of the PCV valve body is larger than the set pressure value; controlling atmosphere to be introduced above the diaphragm according to the fact that the current pressure value of the PCV valve body is not larger than the set pressure value;
the method for controlling the gas in the PCV valve to pass through the membrane comprises the following steps:
controlling the opening of an electromagnetic valve communicated with the PCV valve body to lead the gas in the PCV valve body to be led above the diaphragm;
the control atmosphere is introduced into the upper part of the membrane and comprises:
the electromagnetic valve communicated with the PCV valve body is controlled to be closed, so that the atmosphere is introduced above the diaphragm;
after the solenoid valve is opened, the solenoid valve further comprises:
acquiring a pressure value of the PCV valve body after the electromagnetic valve is opened;
controlling the electromagnetic valve to be closed according to the fact that the pressure value of the PCV valve body is not larger than the set pressure value, and controlling atmosphere to be introduced above the diaphragm to enable the interior of the PCV valve body to be kept in a negative pressure state;
the electromagnetic valve comprises an electromagnetic valve body, and a first inlet, a second inlet and a third inlet are formed in the electromagnetic valve body; the first inlet is communicated with an outlet on the supercharger connecting pipe, the second inlet is communicated with an atmosphere hole on the valve body, and the third inlet is communicated with atmosphere.
2. A pressure adjusting device of a PCV valve body for performing the pressure adjusting method of a PCV valve body according to claim 1, characterized by comprising: the device comprises an acquisition unit and an on-off control unit, wherein:
the acquiring unit is used for acquiring the current pressure value of the PCV valve body;
the on-off control unit controls gas in the PCV valve body to be introduced above the diaphragm according to the fact that the current pressure value of the PCV valve body is larger than the set pressure value; and controlling the atmosphere to be introduced above the diaphragm according to the condition that the current pressure value of the PCV valve body is not greater than the set pressure value.
3. A pressure regulating system of a PCV valve body including a pressure regulating device of the PCV valve body of claim 2 and a storage in which instructions of the pressure regulating method of the PCV valve body of claim 1 are stored;
the device also comprises a PCV valve body and an electromagnetic valve;
a supercharger connecting pipe is arranged on the PCV valve body, an outlet is arranged on the supercharger connecting pipe, a diaphragm is arranged in the PCV valve body, and an atmospheric vent is arranged on the PCV valve body corresponding to the diaphragm;
the outlet is communicated with the atmosphere hole through the electromagnetic valve, and the atmosphere hole is communicated with the atmosphere through the electromagnetic valve.
4. The pressure regulation system of the PCV valve body according to claim 3, wherein the solenoid valve further comprises a spool disposed within the solenoid valve body, the spool moving along the solenoid valve body and capable of communicating the outlet port with the atmospheric vent or communicating the atmospheric vent with the third inlet port.
5. The pressure regulation system of a PCV valve body according to claim 4, wherein a cavity is provided in the spool, and through holes are provided in the spool in communication with the first, second and third inlets, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418445.0A CN111173587B (en) | 2019-12-31 | 2019-12-31 | Pressure regulating method, regulating device and regulating system of PCV valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418445.0A CN111173587B (en) | 2019-12-31 | 2019-12-31 | Pressure regulating method, regulating device and regulating system of PCV valve body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111173587A CN111173587A (en) | 2020-05-19 |
| CN111173587B true CN111173587B (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911418445.0A Active CN111173587B (en) | 2019-12-31 | 2019-12-31 | Pressure regulating method, regulating device and regulating system of PCV valve body |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3678910A (en) * | 1971-03-31 | 1972-07-25 | Ford Motor Co | Control valve for positive crankcase ventilation system |
| DE10254626B4 (en) * | 2002-11-22 | 2015-11-12 | Volkswagen Ag | Crankcase breather valve for an internal combustion engine |
| DE10301028A1 (en) * | 2003-01-14 | 2004-07-29 | Alfmeier Präzision AG | Ventilation valve for a crank housing with an integrated cyclone separator comprises a valve chamber defined on one side by a membrane and on the opposite-lying side by a separating wall |
| EP1723480B1 (en) * | 2004-03-12 | 2008-05-07 | Hengst GmbH & Co. KG | Pneumatic pressure regulation valve |
| EP1918538B1 (en) * | 2006-10-27 | 2009-01-07 | Carl Freudenberg KG | Pressure control valve |
| CN101672382B (en) * | 2009-09-29 | 2011-04-20 | 费斯托(中国)有限公司 | Strut type shuttle valve |
| CN101672381B (en) * | 2009-10-14 | 2011-01-05 | 奇瑞汽车股份有限公司 | Diaphragm type PCV valve |
| CN203146062U (en) * | 2013-01-31 | 2013-08-21 | 长城汽车股份有限公司 | Flow control valve of forced ventilation system of crankcase of engine |
| CN106931186A (en) * | 2015-12-30 | 2017-07-07 | 浙江三花汽车零部件有限公司 | A kind of reversal valve and its packaging technology |
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2019
- 2019-12-31 CN CN201911418445.0A patent/CN111173587B/en active Active
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