CN113931763A - High-pressure common rail pipe - Google Patents
High-pressure common rail pipe Download PDFInfo
- Publication number
- CN113931763A CN113931763A CN202111164992.8A CN202111164992A CN113931763A CN 113931763 A CN113931763 A CN 113931763A CN 202111164992 A CN202111164992 A CN 202111164992A CN 113931763 A CN113931763 A CN 113931763A
- Authority
- CN
- China
- Prior art keywords
- pressure
- common rail
- rail pipe
- medium
- main 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
Links
Images
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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0245—High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0221—Fuel storage reservoirs, e.g. cryogenic tanks
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The application relates to a high-pressure common rail pipe, which comprises a common rail pipe main body, wherein a plurality of through cavities which are arranged side by side are arranged in the common rail pipe main body; a first medium slow-pressing sleeve is arranged in one through cavity, the inner wall of the first medium slow-pressing sleeve is a curved surface, and a space enclosed by the inner wall forms a first medium storage cavity; a second medium slow-pressing sleeve is arranged in the other through cavity, the inner wall of the second medium slow-pressing sleeve is a curved surface, and a space enclosed by the inner wall forms a second medium storage cavity; and a first medium inlet joint and a first medium outlet joint which are communicated with the first medium storage cavity, and a second medium inlet joint and a second medium outlet joint which are communicated with the second medium storage cavity are arranged on the common rail pipe main body. The inner wall of the pressure reducing sleeve is formed by a curved surface, when the fuel medium moves in the pressure reducing sleeve, the flowing speed of the fuel medium is effectively reduced, the moving state of the pressure reducing sleeve is more gentle, and sudden change of oil pressure can be reduced in the processes of primary injection and secondary injection, so that the pressure reducing effect is achieved.
Description
Technical Field
The application relates to the technical field of common rail pipes, in particular to a high-pressure common rail pipe.
Background
The Common Rail (Common Rail) electronic injection technology refers to an oil supply mode which completely separates the generation of injection pressure and the injection process from each other in a closed loop system consisting of a high-pressure oil pump, a pressure sensor and an Electronic Control Unit (ECU).
The high-pressure common rail system mainly comprises a high-pressure oil pump, a common rail pipe and an oil injector, wherein the high-pressure common rail pipe is a hollow long tubular metal body and is used for storing high-pressure fuel oil provided by the high-pressure oil pump, inhibiting pressure fluctuation and providing the high-pressure fuel oil with stable pressure to the oil injector.
In the related art, a through hole structure is adopted in the high-pressure common rail pipe, and the structure has the technical problem that the pressure fluctuation of high-pressure fuel oil is large. Particularly for a multi-cylinder high-pressure common rail engine, under the conditions of circular oil injection of a common rail oil injector and impulse type oil supply of a high-pressure pump, the pressure fluctuation in a high-pressure common rail pipe is very large, the oil injection rule of the oil injector can be seriously influenced by the pressure fluctuation of fuel oil in the high-pressure common rail pipe, so that the oil injection quantity of each cylinder is uneven, even for a certain cylinder, the oil injection quantity of two times of oil injection is inconsistent, and the performance and the emission characteristic of the engine can be seriously influenced.
Disclosure of Invention
The embodiment of the application provides a high-pressure common rail pipe to solve the problem that rail pressure fluctuation is large in the related art.
The embodiment of the application provides a high-pressure common rail pipe, which comprises a common rail pipe main body, wherein a plurality of through cavities which are arranged side by side are arranged in the common rail pipe main body;
a first medium slow-pressing sleeve is arranged in one of the through cavities, the inner wall of the first medium slow-pressing sleeve is a curved surface, and a space enclosed by the inner wall forms a first medium storage cavity;
a second medium slow-pressing sleeve is arranged in the other through cavity, the inner wall of the second medium slow-pressing sleeve is a curved surface, and a space enclosed by the inner wall forms a second medium storage cavity; and the number of the first and second groups,
and the common rail pipe main body is provided with a first medium inlet joint and a first medium outlet joint which are communicated with the first medium storage cavity, and a second medium inlet joint and a second medium outlet joint which are communicated with the second medium storage cavity.
In some embodiments, the curved surface has a circular or elliptical cross-section perpendicular to the length of the common rail pipe body.
In some embodiments, the first medium pressure reducing sleeve comprises at least one first segment, and in the direction perpendicular to the length direction of the common rail pipe body, the area of the cross section of a space enclosed by the inner wall of the first segment is gradually increased and then gradually decreased along the length direction of the common rail pipe body;
the second medium slow-pressing sleeve comprises at least one second section, and in the length direction perpendicular to the common rail pipe main body, the area of the cross section of a space enclosed by the inner wall of the second section is gradually increased and then gradually reduced along the length direction of the common rail pipe main body.
In some embodiments, a first rail pressure sensor and a first pressure limiting valve connected with the first medium storage cavity are respectively arranged at two ends of the common rail pipe main body;
and a second rail pressure sensor and a second pressure limiting valve which are connected with the second medium storage cavity are respectively arranged at the two ends of the common rail pipe main body.
In some embodiments, the first rail pressure sensor and the second pressure limiting valve are located on one end of the common rail pipe body;
the first pressure limiting valve and the second rail pressure sensor are located on the other end of the common rail pipe main body.
In some embodiments, the high pressure common rail pipe further comprises a controller connected to the first rail pressure sensor, the first pressure limiting valve, the second rail pressure sensor, and the second pressure limiting valve and configured to:
receiving a pressure value acquired by the first rail pressure sensor, comparing the pressure value with a first threshold value, controlling the first pressure limiting valve to be opened when the pressure value is greater than the first threshold value so as to relieve the pressure of the first medium storage cavity, and controlling the first pressure limiting valve to be closed when the pressure value is not greater than the first threshold value; and the number of the first and second groups,
and receiving a pressure value acquired by the second rail pressure sensor, comparing the pressure value with a second threshold value, controlling the second pressure limiting valve to be opened when the pressure value is greater than the second threshold value so as to relieve the pressure of the second medium storage cavity, and controlling the second pressure limiting valve to be closed when the pressure value is not greater than the second threshold value.
In some embodiments, a first rail pressure sensor and a first pressure limiting valve connected with the first medium storage cavity are respectively arranged at two ends of the common rail pipe main body;
and a second rail pressure sensor and a plug which are connected with the second medium storage cavity are respectively arranged at the two ends of the common rail pipe main body.
In some embodiments, the first rail pressure sensor and the plug are located on one end of the common rail pipe body;
the first pressure limiting valve and the second rail pressure sensor are located on the other end of the common rail pipe main body.
In some embodiments, the common rail pipe body is further provided with a temperature sensor for detecting the temperature of the gas fuel in the second medium storage cavity;
the high-pressure common rail pipe further comprises a controller, the controller is connected with the first rail pressure sensor, the first pressure limiting valve, the second rail pressure sensor and the temperature sensor, and is used for:
receiving a pressure value acquired by the first rail pressure sensor, comparing the pressure value with a first threshold value, controlling the first pressure limiting valve to be opened when the pressure value is greater than the first threshold value so as to relieve the pressure of the first medium storage cavity, and controlling the first pressure limiting valve to be closed when the pressure value is not greater than the first threshold value; and the number of the first and second groups,
and receiving the pressure value acquired by the second rail pressure sensor and the temperature value acquired by the temperature sensor, comparing the pressure value with a second threshold value and a third threshold value respectively, and controlling to reduce the temperature of the gas fuel injected into the second medium storage cavity when at least one of the pressure value greater than the second threshold value and the temperature value greater than the third threshold value is satisfied.
In some embodiments, at least one of the first rail pressure sensor, the first pressure limiting valve, the second rail pressure sensor, and the second pressure limiting valve is mounted to the common rail pipe body by a positioning ring.
The beneficial effect that technical scheme that this application provided brought includes:
in the embodiment of the application, a single common rail pipe is adopted, and a plurality of through cavities are formed in the common rail pipe, so that different fuel media are stored, the installation of the common rail pipe is reduced, the space of a single cylinder machine or a multi-cylinder machine is saved, and the layout is more reasonable.
In the embodiment of the application, the inner wall of the pressure relief sleeve is formed by the curved surface, and the curved surface meets the fluid molded line of an Euler or Lagrange method, so that the internal turbulence is reduced, the flow is more stable, and the curved surface flow is better than the planar flow. When the fuel medium moves in the small hole straight line structure, the flowing speed of the fuel medium is effectively reduced, the moving state of the fuel medium is more gentle, and sudden change of oil pressure can be reduced in the processes of primary injection and secondary injection, so that the effect of reducing the pressure is achieved, and the small hole straight line structure effect is better than that of the original small hole straight line structure effect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a sectional view of a high pressure common rail provided in an embodiment of the present application (for a single cylinder engine);
fig. 2 is a cross-sectional view (for a multi-cylinder machine) of a view angle of a high-pressure common rail pipe provided by an embodiment of the present application;
fig. 3 is a cross-sectional view of another view angle of the high-pressure common rail pipe (for multi-cylinder machine) provided by the embodiment of the application.
In the figure: 1. a common rail pipe body; 10. a first media storage chamber; 11. a second media storage chamber; 12. a first media inlet connection; 13. a first media outlet connection; 14. a second media inlet connection; 15. a second media outlet connection; 16. a positioning ring; 17. mounting lugs; 2. a first medium slow-pressing sleeve; 20. a first segment; 3. a second medium slowly presses the sleeve; 30. a second segment; 4. a first rail pressure sensor; 5. a first pressure limiting valve; 6. a second rail pressure sensor; 7. a second pressure limiting valve; 8. a plug; 9. a temperature sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a high pressure common rail pipe, which can solve the problem that rail pressure fluctuation is large in the related art.
Referring to fig. 1, 2 and 3, a high-pressure common rail pipe provided in an embodiment of the present invention includes a common rail pipe main body 1, where a plurality of through cavities are arranged in the common rail pipe main body 1 side by side, and each through cavity is separated and independently formed, where the plurality of through cavities refers to at least two through cavities, and in this embodiment, there are two through cavities, that is, in this embodiment, the common rail pipe may store two fuels, but of course, three or more through cavities may be provided, so that the common rail pipe may store three or more fuels, if necessary.
A first medium slow-pressing sleeve 2 is arranged in one of the through cavities, the inner wall of the first medium slow-pressing sleeve 2 is a curved surface, and a space enclosed by the inner wall forms a first medium storage cavity 10; a second medium slow-pressing sleeve 3 is arranged in the other through cavity, the inner wall of the second medium slow-pressing sleeve 3 is a curved surface, and a space enclosed by the inner wall forms a second medium storage cavity 11; and a first medium inlet joint 12 and a first medium outlet joint 13 which are communicated with the first medium storage cavity 10, and a second medium inlet joint 14 and a second medium outlet joint 15 which are communicated with the second medium storage cavity 11 are arranged on the common rail pipe main body 1. The pressure-reducing sleeve is made of a hard material which can resist high pressure, such as 40CrMo, 100Cr6 and the like.
In the embodiment of the application, a single common rail pipe is adopted, and a plurality of through cavities are formed in the common rail pipe, so that different fuel media are stored, the installation of the common rail pipe is reduced, the space of a single cylinder machine or a multi-cylinder machine is saved, and the layout is more reasonable.
In the embodiment of the application, the inner wall of the pressure relief sleeve is formed by the curved surface, and the curved surface meets the fluid molded line of an Euler or Lagrange method, so that the internal turbulence is reduced, the flow is more stable, and the curved surface flow is better than the planar flow. When the fuel medium moves in the small hole straight line structure, the flowing speed of the fuel medium is effectively reduced, the moving state of the fuel medium is more gentle, and sudden change of oil pressure can be reduced in the processes of primary injection and secondary injection, so that the effect of reducing the pressure is achieved, and the small hole straight line structure effect is better than that of the original small hole straight line structure effect.
The application provides a high pressure common rail pipe can be applicable to the single cylinder machine, also can be applicable to multi-cylinder machine, according to the in service behavior, in the time of manufacturing, correspondingly increase medium outlet joint quantity can.
That is to say, the number of the first medium inlet joints 12 and the first medium outlet joints 13 on the high-pressure common rail pipe provided by the present application can be selected according to actual needs, and meanwhile, the number of the second medium inlet joints 14 and the second medium outlet joints 15 can also be selected according to actual needs.
For example, referring to fig. 1, the high-pressure common rail is suitable for a single cylinder engine, and only one of the first medium inlet joint 12, the first medium outlet joint 13, the second medium inlet joint 14 and the second medium outlet joint 15 is arranged on the high-pressure common rail. The first fuel medium enters the first medium storage chamber 10 through the first medium inlet joint 12, and when the fuel medium is required to be supplied, the fuel medium is supplied to the outside through the first medium outlet joint 13; similarly, a second fuel medium is supplied to the second medium storage chamber 11 through the second medium inlet connection 14, and when it is necessary to supply the fuel medium, the fuel medium is supplied to the outside through the second medium outlet connection 15.
In fig. 1, the common rail pipe main body 1 is further provided with two common rail pipe mounting lugs 17, the common rail pipe mounting lugs 17 are used for mounting the common rail pipe main body 1 on a single cylinder machine, and the first medium inlet joint 12 and the first medium outlet joint 13 are located between the two common rail pipe mounting lugs 17 along the length direction of the common rail pipe main body 1; a second medium inlet connection 14 and a second medium outlet connection 15 are located between the first medium inlet connection 12 and the first medium outlet connection 13. The arrangement mode is adopted because the components of the two fuel media are different, and the purposes of reducing pressure fluctuation and balancing the high-pressure common rail pipe are achieved.
For another example, referring to fig. 2 and 3, the high pressure common rail pipe is adapted to a multi-cylinder machine, and the cross-sectional directions of fig. 2 and 3 are vertical, and on the high pressure common rail pipe, there are two first medium inlet joints 12, six first medium outlet joints 13, one second medium inlet joint 14, and six second medium outlet joints 15. The first fuel medium enters the first medium storage chamber 10 through the first medium inlet joint 12, and when the fuel medium is required to be supplied, the fuel medium is supplied to the outside through the first medium outlet joint 13; similarly, a second fuel medium is supplied to the second medium storage chamber 11 through the second medium inlet connection 14, and when it is necessary to supply the fuel medium, the fuel medium is supplied to the outside through the second medium outlet connection 15.
In the application, the curved surface structure of the inner wall of the slow pressing sleeve can be selected in various forms, for example, the cross section of the curved surface is circular in the length direction perpendicular to the common rail pipe main body 1; for another example, the cross section of the curved surface is elliptical in a direction perpendicular to the longitudinal direction of the common rail pipe body 1.
In some preferred embodiments, referring to fig. 1, 2 and 3, the first medium slow-pressing sleeve 2 comprises at least one first segment 20, and in the direction perpendicular to the length direction of the common rail pipe body 1, the cross-sectional area of a space enclosed by the inner wall of the first segment 20 is gradually increased and then gradually decreased along the length direction of the common rail pipe body 1; the second medium slow-pressing sleeve 3 comprises at least one second section 30, and in the length direction perpendicular to the common rail pipe main body 1, the area of the cross section of a space enclosed by the inner wall of the second section 30 is gradually increased and then gradually reduced along the length direction of the common rail pipe main body 1.
One or more segments are adopted for splicing, so that the processing and the installation are convenient.
For example, in fig. 1, the first media cushioning sleeve 2 is formed by splicing three first segments 20, and the second media cushioning sleeve 3 is formed by splicing five second segments 30, wherein the length of the first segments 20 is greater than that of the second segments 30. To ensure that the media storage chambers are substantially equal in volume, the maximum area of the cross-section of the space enclosed by the inner walls of the first section 20 is greater than the maximum area of the cross-section of the space enclosed by the inner walls of the second section 30.
For another example, in fig. 2 and 3, the first media dampening sleeve 2 is formed by splicing eight first segments 20, and the second media dampening sleeve 3 is formed by splicing eight second segments 30.
Referring to fig. 1, in some preferred embodiments, a first rail pressure sensor 4 and a first pressure limiting valve 5 connected to a first medium storage chamber 10 are further provided on both ends of the common rail pipe body 1; and a second rail pressure sensor 6 and a second pressure limiting valve 7 which are connected with a second medium storage cavity 11 are respectively arranged at the two ends of the common rail pipe main body 1. In order to reduce pressure fluctuations and balance the common rail, a first rail pressure sensor 4 and a second pressure limiting valve 7 are located on one end of the common rail pipe main body 1, and a first pressure limiting valve 5 and a second rail pressure sensor 6 are located on the other end of the common rail pipe main body 1.
The high-pressure common rail pipe also comprises a controller, and the controller is connected with the first rail pressure sensor 4, the first pressure limiting valve 5, the second rail pressure sensor 6 and the second pressure limiting valve 7.
The controller receives the pressure value collected by the first rail pressure sensor 4, compares the pressure value with a first threshold value, controls the first pressure limiting valve 5 to be opened when the pressure value is larger than the first threshold value so as to release the pressure of the first medium storage cavity 10 and remove excessive fuel medium, and controls the first pressure limiting valve 5 to be closed when the pressure value is not larger than the first threshold value so as to ensure that the pressure of the first medium storage cavity 10 is within a safe pressure range.
Similarly, the controller receives the pressure value collected by the second rail pressure sensor 6, compares the pressure value with a second threshold value, controls the second pressure limiting valve 7 to be opened when the pressure value is larger than the second threshold value so as to release the pressure of the second medium storage cavity 11 and remove excessive fuel medium, and controls the second pressure limiting valve 7 to be closed when the pressure value is not larger than the second threshold value so as to ensure that the pressure of the second medium storage cavity 11 is within a safe pressure range.
Referring to fig. 2 and 3, in some preferred embodiments, a first rail pressure sensor 4 and a first pressure limiting valve 5 connected to a first medium storage chamber 10 are further provided on both ends of the common rail pipe body 1, respectively; and a second rail pressure sensor 6 and a plug 8 which are connected with a second medium storage cavity 11 are respectively arranged at the two ends of the common rail pipe main body 1. In order to reduce pressure fluctuation and balance the common rail pipe, a first rail pressure sensor 4 and a plug 8 are positioned at one end of a common rail pipe main body 1; a first pressure limiting valve 5 and a second rail pressure sensor 6 are located on the other end of the common rail pipe body 1.
The common rail pipe main body 1 is also provided with a temperature sensor 9 for detecting the temperature of the gas fuel in the second medium storage cavity 11, namely, when the medium storage cavity is used for storing the gas fuel, the temperature sensor 9 can be additionally arranged; the high-pressure common rail pipe also comprises a controller, and the controller is connected with the first rail pressure sensor 4, the first pressure limiting valve 5, the second rail pressure sensor 6 and the temperature sensor 9.
The controller receives the pressure value collected by the first rail pressure sensor 4, compares the pressure value with a first threshold value, controls the first pressure limiting valve 5 to be opened when the pressure value is larger than the first threshold value so as to release the pressure of the first medium storage cavity 10 and remove excessive fuel medium, and controls the first pressure limiting valve 5 to be closed when the pressure value is not larger than the first threshold value so as to ensure that the pressure of the first medium storage cavity 10 is within a safe pressure range.
The controller receives the pressure value collected by the second rail pressure sensor 6 and the temperature value collected by the temperature sensor 9, and compares the pressure value with the second threshold value and the third threshold value respectively, and when the pressure value is larger than at least one of the second threshold value and the third threshold value, the controller controls the temperature of the gas fuel injected into the second medium storage cavity 11 to be reduced, and the pressure of the second medium storage cavity 11 is ensured to be within a safe pressure range.
In the present embodiment, when injecting the gas fuel, three cases may occur:
the first condition is as follows: the gaseous fuel has a low temperature but the pressure of the second medium storage chamber 11 is excessively high because the injection amount is excessive.
Case two: the amount of gas fuel injected is not large, but the pressure of the second medium storage chamber 11 is excessively high because of the high temperature.
Case three: the gaseous fuel is high in temperature and, at the same time, the injection amount is excessive, resulting in an excessive pressure of the second medium storage chamber 11.
For these three cases, the present embodiment provides a second rail pressure sensor 6 and a temperature sensor 9 for monitoring and adjusting the pressure of the second medium storage chamber 11.
When the pressure value measured by the second rail pressure sensor 6 is greater than the second threshold value, it indicates that the pressure of the second medium storage chamber 11 is too high, and since the pressure is blocked by the plug 8 and there is no pressure limiting valve, the temperature of the gas fuel injected into the second medium storage chamber 11 needs to be reduced.
When the temperature value measured by the temperature sensor 9 is greater than the third threshold value, it indicates that the pressure of the second medium storage chamber 11 is too high, and since the pressure is blocked by the plug 8 and there is no pressure limiting valve, the temperature of the gas fuel injected into the second medium storage chamber 11 needs to be reduced.
Usually, the gaseous fuel is heated by a heating device before being injected into the second medium storage chamber 11, so in this embodiment, the control to lower the temperature of the gaseous fuel injected into the second medium storage chamber 11 is to lower the temperature of the gaseous fuel by the controller controlling the heating device.
In some preferred embodiments, referring to fig. 2 and 3, at least one of the first rail pressure sensor 4, the first pressure limiting valve 5, the second rail pressure sensor 6, and the second pressure limiting valve 7 is mounted to the common rail pipe body 1 by a positioning ring 16.
The use of holding ring is that the length of synthesizing the common rail pipe, the length and the quantity of slow compression cover are taken into comprehensive consideration, just need the holding ring when the length that makes the range just in time the same with the length of inner chamber as the quantity of slow compression cover (as far as one mould) just needs the holding ring, just needs the holding ring when there is certain vacancy in length.
In some preferred embodiments, the first media inlet fitting 12 faces tangentially to the first media storage chamber 10 and the second media inlet fitting 14 faces tangentially to the second media storage chamber 11. A swirling flow can be formed in the medium storage chamber, which aims to form a laminar flow after the fuel medium enters, the resistance is reduced, the stability is improved in the working process, and the pressure fluctuation is further reduced or eliminated.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high pressure common rail pipe characterized in that:
the common rail pipe comprises a common rail pipe main body (1), wherein a plurality of through cavities which are arranged side by side are arranged in the common rail pipe main body (1);
a first medium slow-pressing sleeve (2) is arranged in one of the through cavities, the inner wall of the first medium slow-pressing sleeve (2) is a curved surface, and a space enclosed by the inner wall forms a first medium storage cavity (10);
a second medium slow-pressing sleeve (3) is arranged in the other through cavity, the inner wall of the second medium slow-pressing sleeve (3) is a curved surface, and a space enclosed by the inner wall forms a second medium storage cavity (11); and the number of the first and second groups,
and a first medium inlet joint (12) and a first medium outlet joint (13) which are communicated with the first medium storage cavity (10), and a second medium inlet joint (14) and a second medium outlet joint (15) which are communicated with the second medium storage cavity (11) are arranged on the common rail pipe main body (1).
2. A high pressure common rail pipe as claimed in claim 1, wherein:
the cross section of the curved surface is circular or elliptical in the length direction perpendicular to the common rail pipe main body (1).
3. A high pressure common rail pipe as claimed in claim 1, wherein:
the first medium slow-pressing sleeve (2) comprises at least one first section (20), and in the length direction perpendicular to the common rail pipe main body (1), the area of the cross section of a space enclosed by the inner wall of the first section (20) is gradually increased and then gradually reduced along the length direction of the common rail pipe main body (1);
the second medium slow-pressing sleeve (3) comprises at least one second section (30), and in the length direction perpendicular to the common rail pipe main body (1), the area of the cross section of a space enclosed by the inner wall of the second section (30) is gradually increased and then gradually reduced along the length direction of the common rail pipe main body (1).
4. A high pressure common rail pipe as claimed in claim 1, wherein:
a first rail pressure sensor (4) and a first pressure limiting valve (5) which are connected with the first medium storage cavity (10) are respectively arranged at two ends of the common rail pipe main body (1);
and a second rail pressure sensor (6) and a second pressure limiting valve (7) which are connected with the second medium storage cavity (11) are respectively arranged at the two ends of the common rail pipe main body (1).
5. The high pressure common rail pipe of claim 4, wherein:
the first rail pressure sensor (4) and the second pressure limiting valve (7) are positioned on one end of the common rail pipe main body (1);
the first pressure limiting valve (5) and the second rail pressure sensor (6) are positioned at the other end of the common rail pipe main body (1).
6. The high pressure common rail pipe of claim 4, wherein:
the high-pressure common rail pipe further comprises a controller, the controller is connected with the first rail pressure sensor (4), the first pressure limiting valve (5), the second rail pressure sensor (6) and the second pressure limiting valve (7) and is used for:
receiving a pressure value collected by the first rail pressure sensor (4), comparing the pressure value with a first threshold value, controlling the first pressure limiting valve (5) to be opened when the pressure value is greater than the first threshold value so as to release the pressure of the first medium storage cavity (10), and controlling the first pressure limiting valve (5) to be closed when the pressure value is not greater than the first threshold value; and the number of the first and second groups,
and receiving a pressure value collected by the second rail pressure sensor (6), comparing the pressure value with a second threshold value, controlling the second pressure limiting valve (7) to be opened when the pressure value is greater than the second threshold value so as to relieve the pressure of the second medium storage cavity (11), and controlling the second pressure limiting valve (7) to be closed when the pressure value is not greater than the second threshold value.
7. A high pressure common rail pipe as claimed in claim 1, wherein:
a first rail pressure sensor (4) and a first pressure limiting valve (5) which are connected with the first medium storage cavity (10) are respectively arranged at two ends of the common rail pipe main body (1);
and a second rail pressure sensor (6) and a plug (8) which are connected with the second medium storage cavity (11) are respectively arranged at two ends of the common rail pipe main body (1).
8. The high pressure common rail pipe of claim 7, wherein:
the first rail pressure sensor (4) and the plug (8) are positioned at one end of the common rail pipe main body (1);
the first pressure limiting valve (5) and the second rail pressure sensor (6) are positioned at the other end of the common rail pipe main body (1).
9. The high pressure common rail pipe of claim 8, wherein:
the common rail pipe main body (1) is also provided with a temperature sensor (9) for detecting the temperature of the gas fuel in the second medium storage cavity (11);
the high-pressure common rail pipe further comprises a controller, the controller is connected with the first rail pressure sensor (4), the first pressure limiting valve (5), the second rail pressure sensor (6) and the temperature sensor (9) and is used for:
receiving a pressure value collected by the first rail pressure sensor (4), comparing the pressure value with a first threshold value, controlling the first pressure limiting valve (5) to be opened when the pressure value is greater than the first threshold value so as to release the pressure of the first medium storage cavity (10), and controlling the first pressure limiting valve (5) to be closed when the pressure value is not greater than the first threshold value; and the number of the first and second groups,
and receiving the pressure value collected by the second rail pressure sensor (6) and the temperature value collected by the temperature sensor (9), comparing the pressure value with a second threshold value and a third threshold value respectively, and controlling to reduce the temperature of the gas fuel injected into the second medium storage cavity (11) when at least one of the pressure value greater than the second threshold value and the temperature value greater than the third threshold value is satisfied.
10. The high pressure common rail pipe of claim 4, wherein:
at least one of the first rail pressure sensor (4), the first pressure limiting valve (5), the second rail pressure sensor (6) and the second pressure limiting valve (7) is arranged on the common rail pipe main body (1) through a positioning ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111164992.8A CN113931763A (en) | 2021-09-30 | 2021-09-30 | High-pressure common rail pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111164992.8A CN113931763A (en) | 2021-09-30 | 2021-09-30 | High-pressure common rail pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113931763A true CN113931763A (en) | 2022-01-14 |
Family
ID=79277915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111164992.8A Pending CN113931763A (en) | 2021-09-30 | 2021-09-30 | High-pressure common rail pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113931763A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116677915A (en) * | 2023-04-17 | 2023-09-01 | 东风汽车集团股份有限公司 | Medium storage system and vehicle |
Citations (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0517991A1 (en) * | 1991-06-12 | 1992-12-16 | Tiby M. Martin | High pressure electronic common-rail fuel injection system for diesel engines |
| JP2001173507A (en) * | 1999-12-16 | 2001-06-26 | Denso Corp | Accumulator fuel injection control device |
| JP2001280218A (en) * | 2000-01-26 | 2001-10-10 | Usui Internatl Ind Co Ltd | Common rail for diesel engine |
| JP2002195125A (en) * | 2000-12-26 | 2002-07-10 | Otics Corp | Common rail and manufacturing method for the same |
| EP1416151A2 (en) * | 2002-10-31 | 2004-05-06 | Nissan Motor Company, Limited | Highly pressurized common rail for internal combustion engine |
| US20070184265A1 (en) * | 2006-02-03 | 2007-08-09 | Anandakumar Ranganathan | Bi-tapered reinforcing fibers |
| DE102010051004A1 (en) * | 2010-11-10 | 2012-05-10 | Poppe & Potthoff Gmbh | Fuel rail for fuel rail assembly, for use in fuel injection system, has cross hole, which guides from inside of fuel rail through its wall to its outer side |
| CN102734017A (en) * | 2012-06-27 | 2012-10-17 | 无锡开普动力有限公司 | Electronic control high-pressure common-rail fuel injection system for V-shaped diesel engine |
| CN202690281U (en) * | 2012-06-27 | 2013-01-23 | 无锡开普动力有限公司 | Electric-control high-pressure common-rail fuel injection system for V-shaped diesel engine |
| US20130319373A1 (en) * | 2012-06-04 | 2013-12-05 | Caterpillar, Inc. | Dual Fuel Injector And Fuel System |
| US20140034023A1 (en) * | 2012-08-03 | 2014-02-06 | Caterpillar Inc. | Dual Check Fuel Injector And Fuel System Using Same |
| US20140123948A1 (en) * | 2012-11-02 | 2014-05-08 | Caterpillar, Inc. | Compression Ignition Dual Fuel Engine And Fuel Injector For Same |
| US20140123950A1 (en) * | 2011-05-02 | 2014-05-08 | Mtu Friedrichshafen Gmbh | Method for controlling and regulating an internal combustion engine |
| US20140182552A1 (en) * | 2013-01-02 | 2014-07-03 | Caterpillar Inc. | Dual fuel common rail system and diesel only method of operating same |
| CN103912425A (en) * | 2014-03-17 | 2014-07-09 | 中国北方发动机研究所(天津) | Energy storage type high-pressure common rail pipe |
| CN103925133A (en) * | 2013-01-15 | 2014-07-16 | 卡特彼勒公司 | In-cylinder Dynamic Gas Blending Fuel Injector And Dual Fuel Engine |
| US20140316677A1 (en) * | 2013-04-19 | 2014-10-23 | Caterpillar, Inc. | Dual Fuel Common Rail Depressurization During Engine Shutdown And Machine Using Same |
| US20140311444A1 (en) * | 2013-04-19 | 2014-10-23 | Caterpillar, Inc. | Dual Fuel Common Rail Transient Pressure Control And Engine Using Same |
| CN104290654A (en) * | 2014-03-24 | 2015-01-21 | 郑州宇通客车股份有限公司 | Vehicle-mounted gas fuel safety monitoring system and monitoring method |
| JP2015021547A (en) * | 2013-07-18 | 2015-02-02 | 国立大学法人東京農工大学 | Fluid transport pipeline |
| CN105545556A (en) * | 2015-12-14 | 2016-05-04 | 中国北方发动机研究所(天津) | Common rail pipe mechanism of high-pressure common rail system |
| CN106050496A (en) * | 2015-04-17 | 2016-10-26 | 卡特彼勒公司 | Dynamic seal for fuel injector needle check |
| DE102015225067A1 (en) * | 2015-12-14 | 2017-06-14 | Hirschvogel Umformtechnik Gmbh | Internal pressure-loaded component (rail) with plastic lining |
| EP3211208A1 (en) * | 2016-02-29 | 2017-08-30 | Delphi International Operations Luxembourg S.à r.l. | Common rail with variable inner volume reservoir |
| EP3249212A1 (en) * | 2016-05-25 | 2017-11-29 | Delphi International Operations Luxembourg S.à r.l. | Common rail |
| CN107433312A (en) * | 2017-09-11 | 2017-12-05 | 江苏龙城精锻有限公司 | A kind of high-pressure common-rail pipe blanking mold and blank-making method |
| DE102016210385A1 (en) * | 2016-06-13 | 2017-12-14 | Robert Bosch Gmbh | Pressure sensor for a high pressure accumulator and high pressure accumulator |
| CN107636284A (en) * | 2015-04-07 | 2018-01-26 | 西港能源有限公司 | The operation of gaseous-fuel injector |
| CN207740109U (en) * | 2017-12-31 | 2018-08-17 | 无锡威孚高科技集团股份有限公司 | The double-deck common rail pipe |
| CN207847839U (en) * | 2017-09-25 | 2018-09-11 | 中国重汽集团重庆燃油喷射系统有限公司 | Oil supply structure for high-pressure common-rail fuel system |
| CN108708796A (en) * | 2017-12-29 | 2018-10-26 | 南岳电控（衡阳）工业技术股份有限公司 | A kind of Pressure Limiter of High-pressure Common Rail System control method |
| CN209083453U (en) * | 2018-11-02 | 2019-07-09 | 山东鑫亚格林鲍尔燃油系统有限公司 | A kind of multi-cylinder diesel engine high-pressure common-rail pipe |
| WO2019137796A1 (en) * | 2018-01-10 | 2019-07-18 | Delphi Technologies Ip Limited | Fuel common rail |
| CN110486205A (en) * | 2019-08-07 | 2019-11-22 | 中国北方发动机研究所(天津) | A kind of inside and outside double track cavity-separating high-pressure common-rail pipe |
| CN209976681U (en) * | 2019-05-27 | 2020-01-21 | 常州市丰乐精锻有限公司 | Novel automobile high-pressure common rail pipe |
| CN111022232A (en) * | 2019-12-31 | 2020-04-17 | 南岳电控（衡阳）工业技术股份有限公司 | Common rail fuel injection system for diesel engine and control method thereof |
| CN111434914A (en) * | 2019-01-11 | 2020-07-21 | 汪志友 | Hydrogen-containing auxiliary fuel and main fuel high-pressure common rail injection system |
| CN112555077A (en) * | 2020-12-03 | 2021-03-26 | 一汽解放汽车有限公司 | Common rail pipe and diesel engine high-pressure oil supply system |
| CN113202637A (en) * | 2021-05-27 | 2021-08-03 | 哈尔滨工程大学 | Liquid ammonia-diesel oil dual-fuel injection device |
-
2021
- 2021-09-30 CN CN202111164992.8A patent/CN113931763A/en active Pending
Patent Citations (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0517991A1 (en) * | 1991-06-12 | 1992-12-16 | Tiby M. Martin | High pressure electronic common-rail fuel injection system for diesel engines |
| JP2001173507A (en) * | 1999-12-16 | 2001-06-26 | Denso Corp | Accumulator fuel injection control device |
| JP2001280218A (en) * | 2000-01-26 | 2001-10-10 | Usui Internatl Ind Co Ltd | Common rail for diesel engine |
| JP2002195125A (en) * | 2000-12-26 | 2002-07-10 | Otics Corp | Common rail and manufacturing method for the same |
| EP1416151A2 (en) * | 2002-10-31 | 2004-05-06 | Nissan Motor Company, Limited | Highly pressurized common rail for internal combustion engine |
| US20070184265A1 (en) * | 2006-02-03 | 2007-08-09 | Anandakumar Ranganathan | Bi-tapered reinforcing fibers |
| DE102010051004A1 (en) * | 2010-11-10 | 2012-05-10 | Poppe & Potthoff Gmbh | Fuel rail for fuel rail assembly, for use in fuel injection system, has cross hole, which guides from inside of fuel rail through its wall to its outer side |
| US20140123950A1 (en) * | 2011-05-02 | 2014-05-08 | Mtu Friedrichshafen Gmbh | Method for controlling and regulating an internal combustion engine |
| US20130319373A1 (en) * | 2012-06-04 | 2013-12-05 | Caterpillar, Inc. | Dual Fuel Injector And Fuel System |
| CN202690281U (en) * | 2012-06-27 | 2013-01-23 | 无锡开普动力有限公司 | Electric-control high-pressure common-rail fuel injection system for V-shaped diesel engine |
| CN102734017A (en) * | 2012-06-27 | 2012-10-17 | 无锡开普动力有限公司 | Electronic control high-pressure common-rail fuel injection system for V-shaped diesel engine |
| US20140034023A1 (en) * | 2012-08-03 | 2014-02-06 | Caterpillar Inc. | Dual Check Fuel Injector And Fuel System Using Same |
| US20140123948A1 (en) * | 2012-11-02 | 2014-05-08 | Caterpillar, Inc. | Compression Ignition Dual Fuel Engine And Fuel Injector For Same |
| US20140182552A1 (en) * | 2013-01-02 | 2014-07-03 | Caterpillar Inc. | Dual fuel common rail system and diesel only method of operating same |
| CN103925133A (en) * | 2013-01-15 | 2014-07-16 | 卡特彼勒公司 | In-cylinder Dynamic Gas Blending Fuel Injector And Dual Fuel Engine |
| US20140196687A1 (en) * | 2013-01-15 | 2014-07-17 | Caterpillar, Inc. | In-Cylinder Dynamic Gas Blending Fuel Injector And Dual Fuel Engine |
| US20140311444A1 (en) * | 2013-04-19 | 2014-10-23 | Caterpillar, Inc. | Dual Fuel Common Rail Transient Pressure Control And Engine Using Same |
| US20140316677A1 (en) * | 2013-04-19 | 2014-10-23 | Caterpillar, Inc. | Dual Fuel Common Rail Depressurization During Engine Shutdown And Machine Using Same |
| JP2015021547A (en) * | 2013-07-18 | 2015-02-02 | 国立大学法人東京農工大学 | Fluid transport pipeline |
| CN103912425A (en) * | 2014-03-17 | 2014-07-09 | 中国北方发动机研究所(天津) | Energy storage type high-pressure common rail pipe |
| CN104290654A (en) * | 2014-03-24 | 2015-01-21 | 郑州宇通客车股份有限公司 | Vehicle-mounted gas fuel safety monitoring system and monitoring method |
| CN107636284A (en) * | 2015-04-07 | 2018-01-26 | 西港能源有限公司 | The operation of gaseous-fuel injector |
| CN106050496A (en) * | 2015-04-17 | 2016-10-26 | 卡特彼勒公司 | Dynamic seal for fuel injector needle check |
| CN105545556A (en) * | 2015-12-14 | 2016-05-04 | 中国北方发动机研究所(天津) | Common rail pipe mechanism of high-pressure common rail system |
| DE102015225067A1 (en) * | 2015-12-14 | 2017-06-14 | Hirschvogel Umformtechnik Gmbh | Internal pressure-loaded component (rail) with plastic lining |
| EP3211208A1 (en) * | 2016-02-29 | 2017-08-30 | Delphi International Operations Luxembourg S.à r.l. | Common rail with variable inner volume reservoir |
| EP3249212A1 (en) * | 2016-05-25 | 2017-11-29 | Delphi International Operations Luxembourg S.à r.l. | Common rail |
| DE102016210385A1 (en) * | 2016-06-13 | 2017-12-14 | Robert Bosch Gmbh | Pressure sensor for a high pressure accumulator and high pressure accumulator |
| CN107433312A (en) * | 2017-09-11 | 2017-12-05 | 江苏龙城精锻有限公司 | A kind of high-pressure common-rail pipe blanking mold and blank-making method |
| CN207847839U (en) * | 2017-09-25 | 2018-09-11 | 中国重汽集团重庆燃油喷射系统有限公司 | Oil supply structure for high-pressure common-rail fuel system |
| CN108708796A (en) * | 2017-12-29 | 2018-10-26 | 南岳电控（衡阳）工业技术股份有限公司 | A kind of Pressure Limiter of High-pressure Common Rail System control method |
| CN207740109U (en) * | 2017-12-31 | 2018-08-17 | 无锡威孚高科技集团股份有限公司 | The double-deck common rail pipe |
| WO2019137796A1 (en) * | 2018-01-10 | 2019-07-18 | Delphi Technologies Ip Limited | Fuel common rail |
| CN209083453U (en) * | 2018-11-02 | 2019-07-09 | 山东鑫亚格林鲍尔燃油系统有限公司 | A kind of multi-cylinder diesel engine high-pressure common-rail pipe |
| CN111434914A (en) * | 2019-01-11 | 2020-07-21 | 汪志友 | Hydrogen-containing auxiliary fuel and main fuel high-pressure common rail injection system |
| CN209976681U (en) * | 2019-05-27 | 2020-01-21 | 常州市丰乐精锻有限公司 | Novel automobile high-pressure common rail pipe |
| CN110486205A (en) * | 2019-08-07 | 2019-11-22 | 中国北方发动机研究所(天津) | A kind of inside and outside double track cavity-separating high-pressure common-rail pipe |
| CN111022232A (en) * | 2019-12-31 | 2020-04-17 | 南岳电控（衡阳）工业技术股份有限公司 | Common rail fuel injection system for diesel engine and control method thereof |
| CN112555077A (en) * | 2020-12-03 | 2021-03-26 | 一汽解放汽车有限公司 | Common rail pipe and diesel engine high-pressure oil supply system |
| CN113202637A (en) * | 2021-05-27 | 2021-08-03 | 哈尔滨工程大学 | Liquid ammonia-diesel oil dual-fuel injection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116677915A (en) * | 2023-04-17 | 2023-09-01 | 东风汽车集团股份有限公司 | Medium storage system and vehicle |
| CN116677915B (en) * | 2023-04-17 | 2024-04-02 | 东风汽车集团股份有限公司 | Medium storage system and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102596356B (en) | Filter cartridge with anti-drip feature | |
| CN113931763A (en) | High-pressure common rail pipe | |
| US7493892B1 (en) | Self-damping fuel rail | |
| US20090071444A1 (en) | Fuel supply apparatuses | |
| CN109812693A (en) | A kind of vehicle-mounted hydrogen-feeding system of fuel cell car | |
| JPH04500112A (en) | Fuel distributor for internal combustion engine fuel injectors | |
| JPS59155564A (en) | Fuel distributing pipe for fuel injection type engine | |
| JPWO2004016934A1 (en) | Fuel return device for internal combustion engine | |
| CN101371096A (en) | Heat exchanger provided with a connection element | |
| CN209083453U (en) | A kind of multi-cylinder diesel engine high-pressure common-rail pipe | |
| KR20120059688A (en) | Inter Cooler | |
| JP2015513042A (en) | Fuel injection rail for internal combustion engines | |
| CN203176464U (en) | Pressure valve | |
| AU2013293362B2 (en) | Liquid phase injection tip icing prevention | |
| US20200109687A1 (en) | Fuel injection device and fuel heating method | |
| KR0173355B1 (en) | Intake manifold unit of an internal combustion engine | |
| CN216769412U (en) | Two-section double-injection square tube and gas water heater | |
| KR20050043439A (en) | Gas-boiler of dual type | |
| CN102913358B (en) | Common-rail pipe of gas engine | |
| CN220600528U (en) | Air outlet joint and fuel gas proportional valve | |
| CN219299445U (en) | Rail pressure control valve seat | |
| CN210622949U (en) | Oil pump pressure regulating valve | |
| CN209959382U (en) | Fuel pump casing structure with novel siphon jet structure | |
| CN219081719U (en) | Cylinder head, engine and vehicle | |
| CN109297324B (en) | Heat exchanger for restraining direct current, traveling wave thermoacoustic engine and alternating flow system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220114 |