CN117419925A - Single cylinder diesel system test device - Google Patents
Single cylinder diesel system test device Download PDFInfo
- Publication number
- CN117419925A CN117419925A CN202311263986.7A CN202311263986A CN117419925A CN 117419925 A CN117419925 A CN 117419925A CN 202311263986 A CN202311263986 A CN 202311263986A CN 117419925 A CN117419925 A CN 117419925A
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- diesel
- oil
- pressure
- single cylinder
- test
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- 238000012360 testing method Methods 0.000 title claims abstract description 56
- 239000002283 diesel fuel Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 abstract description 7
- 238000012795 verification Methods 0.000 abstract description 6
- 238000011056 performance test Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Testing Of Engines (AREA)
Abstract
The invention provides a single-cylinder engine diesel system test device which comprises a movable bracket, and a low-pressure diesel system and a high-pressure diesel system which are respectively arranged on the movable bracket. The single-cylinder diesel system testing device can realize independent assembly and test of a diesel system in the single-cylinder diesel testing process, and the system can independently carry out various performance verification tests of the diesel system and also can carry out the single-cylinder diesel performance test linked with the single-cylinder diesel. In the process, the technical state of the tested diesel oil system can better keep consistency, and the accuracy of the test is improved; the device realizes the flow control of the oil pump through the variable frequency motor, and can realize real-time global flow control of the diesel oil supply system according to the working condition requirement of the engine; meanwhile, the equipment has good interchangeability, all systems are connected by adopting standard components, and a tested system, a flowmeter and a variable frequency motor can be replaced according to test requirements.
Description
Technical Field
The invention belongs to the field of single-cylinder engine tests, and particularly relates to a single-cylinder engine diesel system test device.
Background
In the single cylinder engine research process, diesel oil system matching and verification performance tests are required to be carried out, and the type of tests require performance matching tests of different diesel oil pumps and high-pressure oil rails on the single cylinder engine. During the test, the following disadvantages exist: firstly, in order to keep consistency with the whole engine test, the diesel pump selected in the single-cylinder engine test is generally the same as the flow characteristic of the multi-cylinder whole engine, the original flow characteristic is far greater than the single-cylinder engine test requirement, and the test diesel system is often failed due to overlarge diesel flow in the test. Therefore, in the single-cylinder engine test, the flow of the diesel pump needs to be independently controlled so as to ensure that the flow characteristic meets the single-cylinder engine test requirement. In the single cylinder engine test, the single cylinder engine diesel oil system is replaced frequently according to the test requirement, so that the diesel oil system to be tested is required to have good interchangeability, and the test operation is convenient. Finally, the single-cylinder diesel oil system to be tested needs to be subjected to other independent verification tests besides the single-cylinder engine matching test, so that the same test process control capability is maintained, and the provision of a stable and reliable test environment for the system to be tested is particularly important for the comparison and verification of the system.
Disclosure of Invention
In view of the above, the present invention aims to propose a single cylinder diesel system test device to solve at least one of the above problems.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the utility model provides a single cylinder diesel system test device, includes movable support and the low pressure diesel system and the high pressure diesel system that set up respectively on it, and the one end of high pressure diesel system communicates to low pressure diesel system, and the diesel oil in the low pressure diesel system is carried to the single cylinder that awaits measuring through the high pressure diesel system.
The high-pressure diesel system comprises a variable frequency motor, a coupler, a diesel pump and a high-pressure oil rail, wherein an output shaft of the variable frequency motor is fixedly connected to one end of the diesel pump through the coupler, the diesel pump is used for transferring diesel oil from the low-pressure diesel system to the high-pressure oil rail, and the transferred diesel oil is conveyed to the single cylinder engine to be tested after being stabilized by the high-pressure oil rail.
The low-pressure diesel system comprises an oil tank and a temperature control unit, the oil tank is fixedly mounted on the movable support, the temperature control unit is used for adjusting the oil temperature in the oil tank, a flowmeter is arranged at the outlet end of the oil tank, and the outlet end of the oil tank is communicated to the diesel pump.
The temperature control unit is a heat exchanger, and a temperature sensor is arranged in the oil tank and used for detecting the oil temperature.
The lower end of the movable support is provided with a plurality of universal wheels.
The diesel pump and the high-pressure oil rail are matched with the single cylinder engine to be tested.
The outlet end of the high-pressure oil rail is provided with a quick-release connector, and the single cylinder engine to be tested is connected to the quick-release connector through an oil pipe.
Compared with the prior art, the single-cylinder diesel system test device has the following beneficial effects: the system can realize independent assembly and test of the diesel oil system in the single-cylinder engine test process, can independently develop various performance verification tests of the diesel oil system, and can also carry out the single-cylinder engine performance test linked with the single-cylinder engine. In the process, the technical state of the tested diesel oil system can better keep consistency, and the accuracy of the test is improved; the device realizes the flow control of the oil pump through the variable frequency motor, and can realize real-time global flow control of the diesel oil supply system according to the working condition requirement of the engine; meanwhile, the equipment has good interchangeability, all systems are connected by adopting standard components, and a tested system, a flowmeter and a variable frequency motor can be replaced according to test requirements.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic diagram of a single cylinder diesel system test device according to an embodiment of the invention.
Reference numerals illustrate:
1-moving a bracket; 11-universal wheels; 2-diesel pump; 3-a variable frequency motor; a 4-coupling; 5-high pressure oil rail; 6-quick release joint; 7-a single cylinder engine to be tested; 71-oil pipe; 8-an oil tank; 9-a flow meter; 10-a temperature control unit.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in figure 1, the single-cylinder diesel engine system test device comprises a movable support 1, and a low-pressure diesel engine system and a high-pressure diesel engine system which are respectively arranged on the movable support, wherein one end of the high-pressure diesel engine system is communicated with the low-pressure diesel engine system, diesel oil in the low-pressure diesel engine system is conveyed to a single cylinder engine 7 to be tested through the high-pressure diesel engine system, the device can realize independent assembly and test of the diesel engine system in the single cylinder engine test process, and the system can independently develop various performance verification tests of the diesel engine system and also can perform single cylinder engine performance tests linked with the single cylinder engine. In the process, the technical state of the tested diesel oil system can better keep consistency, and the accuracy of the test is improved; the device realizes the flow control of the oil pump through the variable frequency motor 3, and can realize real-time global flow control of the diesel oil supply system according to the working condition requirement of the engine; meanwhile, the equipment has good interchangeability, all systems are connected by adopting standard components, and the tested system, the flowmeter 9 and the variable frequency motor 3 can be replaced according to test requirements.
The high-pressure diesel system comprises a variable frequency motor 3, a coupler 4, a diesel pump 2 and a high-pressure oil rail 5, wherein an output shaft of the variable frequency motor 3 is fixedly connected to one end of the diesel pump 2 through the coupler 4, the diesel pump 2 is used for transferring diesel oil from the low-pressure diesel system to the high-pressure oil rail 5, the transferred diesel oil is conveyed to a single cylinder engine 7 to be tested after being stabilized by the high-pressure oil rail 5, the high-pressure diesel system is provided with the adjustable variable frequency motor 3, the diesel pump 2 can be independently controlled in flow, the flow characteristics of the diesel oil can meet the flow requirements of the actual work of the single cylinder engine, and faults caused by overlarge flow of the diesel oil system are avoided.
The low-pressure diesel system comprises an oil tank 8 and a temperature control unit 10, the oil tank 8 is fixedly arranged on the movable support 1, the temperature control unit 10 is used for adjusting the oil temperature in the oil tank 8, a flowmeter 9 is arranged at the outlet end of the oil tank 8, the outlet end of the oil tank 8 is communicated to the diesel pump 2, the low-pressure diesel system can complete the temperature control and flow test work of the diesel system, the same control boundary and working environment of the diesel system in different tests can be ensured, and the comparability of the system in different test environments is improved.
The temperature control unit 10 is a prior art heat exchanger and a temperature sensor is provided in the oil tank 8 for detecting the oil temperature, the temperature sensor being connected to a controller of the heat exchanger.
The quick release joint 6 is installed at the exit end of high-pressure oil rail 5, single cylinder engine 7 to be measured is connected to quick release joint 6 through oil pipe 71, quick release joint 6 is prior art self-locking type quick connector, all adopt self-locking type quick connector and high pressure resistant pipe connection between all parts in this test device, be convenient for carry out the change work of each part in the matching test, the application of self-locking type joint reducible dismouting in the work diesel oil run, emit, drip, leak the problem simultaneously, improve test environment, improve work factor of safety.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. A single cylinder diesel system test device which is characterized in that: the device comprises a movable support (1) and a low-pressure diesel system and a high-pressure diesel system which are respectively arranged on the movable support, wherein one end of the high-pressure diesel system is communicated with the low-pressure diesel system, and diesel in the low-pressure diesel system is conveyed to a single cylinder engine (7) to be detected through the high-pressure diesel system.
2. The single cylinder diesel system test device according to claim 1, wherein: the high-pressure diesel system comprises a variable frequency motor (3), a coupler (4), a diesel pump (2) and a high-pressure oil rail (5), wherein an output shaft of the variable frequency motor (3) is fixedly connected to one end of the diesel pump (2) through the coupler (4), the diesel pump (2) is used for transferring diesel oil from the low-pressure diesel system to the high-pressure oil rail (5), and the transferred diesel oil is conveyed to a single cylinder engine (7) to be tested after being stabilized by the high-pressure oil rail (5).
3. The single cylinder diesel system test device according to claim 1, wherein: the low-pressure diesel oil system comprises an oil tank (8) and a temperature control unit (10), the oil tank (8) is fixedly mounted on the movable support (1), the temperature control unit (10) is used for adjusting the oil temperature in the oil tank (8), a flowmeter (9) is arranged at the outlet end of the oil tank (8), and the outlet end of the oil tank (8) is communicated to the diesel oil pump (2).
4. A single cylinder diesel system test unit according to claim 3, wherein: the temperature control unit (10) is a heat exchanger, and a temperature sensor is arranged in the oil tank (8) and used for detecting the oil temperature.
5. The single cylinder diesel system test device according to claim 1, wherein: the lower end of the movable bracket (1) is provided with a plurality of universal wheels (11).
6. The single cylinder diesel system test device according to claim 2, wherein: the diesel pump (2) and the high-pressure oil rail (5) are matched with a single cylinder engine (7) to be tested.
7. The single cylinder diesel system test device according to claim 2, wherein: the outlet end of the high-pressure oil rail (5) is provided with a quick-release connector (6), and the single cylinder engine (7) to be tested is connected to the quick-release connector (6) through an oil pipe (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311263986.7A CN117419925A (en) | 2023-09-28 | 2023-09-28 | Single cylinder diesel system test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311263986.7A CN117419925A (en) | 2023-09-28 | 2023-09-28 | Single cylinder diesel system test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117419925A true CN117419925A (en) | 2024-01-19 |
Family
ID=89531578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311263986.7A Pending CN117419925A (en) | 2023-09-28 | 2023-09-28 | Single cylinder diesel system test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117419925A (en) |
-
2023
- 2023-09-28 CN CN202311263986.7A patent/CN117419925A/en active Pending
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