A fuel pressure control valve pump pressure testing tool and method

Abstract

This invention discloses a fuel pressure control valve pump pressure testing tool and method, comprising: a main body, a sealing port, a connecting port, and an oil inlet. The sealing port is located at the bottom of the main body, the connecting port is located on the side of the sealing port, and the oil inlet is located on the side of the main body. A sealing device is fixedly installed inside the main body at the bottom of the sealing port. Compared to traditional control valve pump pressure testing tools, this device, under the action of the top cover and spring, can tightly adhere to the bottom of the sealing port during use, effectively and stably sealing the oil outlet to prevent internal pump oil leakage. Other outlets can also be sealed. Furthermore, during subsequent testing, pump oil can be directly introduced into the main body through the connector, quickly completing the component's own testing and inspection, resulting in a more perfect performance and improved overall work quality.

Description

Technical Field

[0001] This invention relates to the field of control valve pump pressure testing, and more particularly to a fuel pressure control valve pump pressure testing tool and method. Background Technology

[0002] The Invar Tsering RT-FLEX electronically controlled common rail diesel engine truly achieves high-pressure common rail fuel injection, boasting excellent operating performance, lower fuel consumption, and lower emissions. Therefore, this type of main unit is widely used. After assembly, the fuel pressure control valve must undergo a pump pressure test to check the airtightness of the entire system and ensure experimental safety. Current sealing tools have certain problems: the sealing effect at the oil outlet is not ideal, easily leading to leakage. Furthermore, after sealing the oil inlet, the fuel delivery pipeline cannot easily enter the internal pump, affecting the overall testing and consequently impacting the overall working quality of the equipment.

[0003] Therefore, it is necessary to provide a new fuel pressure control valve pump pressure testing tool and method to solve the above-mentioned technical problems. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a fuel pressure control valve pump pressure testing tool and method that offers good sealing performance and facilitates the delivery of pump oil.

[0005] The fuel pressure control valve pump pressure testing tool provided by this invention includes: a main body, a sealing port, a connecting port, and an oil inlet. The sealing port is located at the bottom of the main body, and the connecting port is located on the side of the sealing port inside the main body. The oil inlet is located on the side of the main body. A sealing device is fixedly installed inside the main body at the bottom of the sealing port for sealing the upper and lower end slots of the sealing port. A connecting device is fixedly installed inside the connecting port for sealing the connecting port to ensure the sealing effect inside the equipment. A mating device is fixedly installed inside the oil inlet. The mating device includes a side plate, a first sealing plug, a connector, and a slot. A side plate is fixedly installed on the side of the main body. The first sealing plug is threaded inside the side plate. A slot is provided inside the first sealing plug. A connector is provided inside the slot to facilitate the delivery of pump oil while ensuring the sealing effect of the oil inlet.

[0006] Preferably, the mating device further includes a threaded groove and a threaded rod. The main body and the side plate are symmetrically provided with threaded grooves, and a threaded rod is threadedly installed inside the threaded groove.

[0007] Preferably, the connector has an oil delivery groove inside, and the top structure of the connector is completely fitted with the inner wall of the oil inlet, which facilitates the subsequent input of pump oil into the main body during use. The fit between the connector and the inner wall of the oil inlet further ensures the sealing effect during equipment use.

[0008] Preferably, the sealing device includes a chute, a meshing groove, a second sealing plug, a threaded end, a top cover, and a spring. The chute is provided at the bottom of the sealing port inside the main body. The second sealing plug is slidably installed inside the chute. A threaded end is fixedly installed on the outer surface of the second sealing plug. A meshing groove is provided outside the threaded end inside the main body. The threaded end is threadedly connected to the meshing groove. A top cover is provided at the top of the second sealing plug. A spring is fixedly installed between the top cover and the second sealing plug.

[0009] Preferably, a base plate is fixedly installed at the bottom of the second sealing plug, which facilitates the installation or removal of the second sealing plug as a whole during use.

[0010] Preferably, the connecting device includes an insertion port, an insertion block, a mating groove, a mating block, and a rotating block. The insertion port is provided inside the main body, the insertion block is slidably installed inside the insertion port, the mating block is fixedly installed on the top of the insertion block, the mating groove is provided inside the main body outside the mating block, the mating block is threadedly connected to the mating groove, and the rotating block is fixedly installed on the surface of the mating block.

[0011] Preferably, the rotating block is hexagonal in shape, which makes it more convenient and less labor-intensive to rotate the rotating block during use.

[0012] Preferably, a connecting pipeline is provided inside the main body of the machine between the oil inlet, the connection port and the sealing port, which facilitates the flow of pumped oil inside the main body during use and facilitates the smooth progress of testing.

[0013] Preferably, a test method for a fuel pressure control valve pump pressure test tool includes the following steps:

[0014] 1. Placement: Place the main unit in the valve body pump pressure chamber of the pump pressure test area;

[0015] 2. Sealing: The top cover and the second sealing plug are connected by the spring. Then, the second sealing plug and the top cover are inserted into the bottom of the sealing opening and tightened by the use of the threaded end and the meshing groove, so that the top cover is tightly attached to the bottom part of the sealing opening, ensuring the sealing of the component.

[0016] 3. Connection: By rotating the rotating block, the mating block is moved into the mating groove, allowing the insertion block to fit tightly against the inner wall of the insertion port, thus sealing the connection port.

[0017] 4. Fitting: The side plate is attached to the side of the main body. The side plate is installed by using the threaded rod and threaded groove. Then the connector is inserted into the first sealing plug. The first sealing plug is then turned into the side plate. After fixing, the connector is tightly attached to the inside of the oil inlet, thus completing the sealing of the component.

[0018] 5. Testing: By using the connector, adjust the oil injection knob to slowly inject lubricating oil. Observe the pressure gauge reading to gradually increase the oil pressure to the 1350 bar pressure value required for the pump pressure test. Hold the pressure for 10 minutes. If no leakage occurs, the product is qualified and the pump pressure test is completed.

[0019] Compared with related technologies, the fuel pressure control valve pump pressure testing tool and method provided by this invention have the following advantages:

[0020] This invention provides a fuel pressure control valve pump pressure testing tool and method. During use, the sealing device, connecting device, and cooperating device work together to ensure a tight seal at the bottom of the sealing port by the top cover and spring, effectively and stably sealing the oil outlet and preventing internal pump oil leakage. Other outlets can also be sealed. Furthermore, during subsequent testing, pump oil can be directly introduced into the main unit via the connector, quickly completing the component's own testing and inspection, resulting in a more perfect performance of the equipment and improved overall work quality. Attached Figure Description

[0021] Figure 1 This is one of the overall structural schematic diagrams of the present invention;

[0022] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0023] Figure 3 This is the third schematic diagram of the overall structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the sealing device of the present invention;

[0025] Figure 5 This is a schematic diagram of the connecting device of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the device used in this invention.

[0027] The diagram is labeled as follows: 1. Main body; 2. Sealing port; 3. Connection port; 4. Oil inlet; 5. Sealing device; 51. Slide groove; 52. Engaging groove; 53. Second sealing plug; 54. Threaded end; 55. Top cover; 56. Spring; 6. Connecting device; 61. Insertion port; 62. Insertion block; 63. Mating groove; 64. Mating block; 65. Rotating block; 7. Mating device; 71. Side plate; 72. Threaded groove; 73. Threaded rod; 74. First sealing plug; 75. Connector; 76. Slot. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0030] Example 1:

[0031] Please see Figure 1 , Figure 2 and Figure 3 This invention provides a fuel pressure control valve pump pressure testing tool, comprising: a main body 1, a sealing port 2, a connecting port 3, and an oil inlet 4. The sealing port 2 is located at the bottom of the main body 1, the connecting port 3 is located on the side of the sealing port 2, and the oil inlet 4 is located on the side of the main body 1. A sealing device 5 is fixedly installed inside the main body 1 at the bottom of the sealing port 2 for sealing the upper and lower end slots of the sealing port 2. A connecting device 6 is fixedly installed inside the connecting port 3 for sealing the connecting port 3 to ensure the sealing effect inside the device. A mating device 7 is fixedly installed inside the oil inlet 4. The mating device 7 includes a side plate 71, a first sealing plug 74, a connector 75, and a slot 76. The side plate 71 is fixedly installed on the side of the main body 1. The first sealing plug 74 is threaded inside the side plate 71. The first sealing plug 74 has a slot 76 inside, and the connector 75 is provided inside the slot 76 to facilitate the delivery of pump oil while ensuring the sealing effect of the oil inlet 4.

[0032] In use, the main body 1 is placed in the target position for easy subsequent testing. Then, the sealing device 5 seals the sealing port 2 inside the main body 1, while the connecting device 6 seals the connecting port 3. Finally, the side plate 71 is attached to the side of the main body 1 by using the cooperating device 7. The installation of the side plate 71 is completed by using the threaded rod 73 and the threaded groove 72. Then, the connector 75 is inserted into the first sealing plug 74, and the first sealing plug 74 is rotated into the side plate 71. After fixing, the connector 75 is tightly attached to the inside of the oil inlet 4, completing the sealing of the component. Subsequently, the connector 75 can be used to easily inject pump oil into the main body 1 to complete the component's own testing.

[0033] Please see Figure 6 The cooperating device 7 also includes a threaded groove 72 and a threaded rod 73. The main body 1 and the side plate 71 are symmetrically provided with threaded grooves 72, and the threaded rod 73 is threadedly installed inside the threaded groove 72.

[0034] Please see Figure 6The connector 75 has an oil delivery groove inside, and the top structure of the connector 75 is completely fitted with the inner wall of the oil inlet 4, which facilitates the subsequent input of pump oil into the main machine 1 during use. The fit between the connector 75 and the inner wall of the oil inlet 4 further ensures the sealing effect during equipment use.

[0035] Please see Figure 4 The sealing device 5 includes a sliding groove 51, a meshing groove 52, a second sealing plug 53, a threaded end 54, a top cover 55, and a spring 56. The sliding groove 51 is provided inside the main body 1 at the bottom of the sealing port 2. The second sealing plug 53 is slidably installed inside the sliding groove 51. The threaded end 54 is fixedly installed on the outer surface of the second sealing plug 53. The meshing groove 52 is provided inside the main body 1 outside the threaded end 54. The threaded end 54 is threadedly connected to the meshing groove 52. The top cover 55 is provided at the top of the second sealing plug 53. The spring 56 is fixedly installed between the top cover 55 and the second sealing plug 53.

[0036] During use, the spring 56 connects the top cover 55 and the second sealing plug 53. Then, the second sealing plug 53 and the top cover 55 are inserted into the bottom of the sealing port 2 and tightened by the threaded end 54 and the meshing groove 52. After that, due to the injection of pump oil, the top cover 55 moves up automatically due to internal compression, so that the top cover 55 is tightly attached to the bottom part of the sealing port 2, ensuring the sealing of the component.

[0037] Please see Figure 4 The bottom of the second sealing plug 53 is fixedly installed with a base plate, which facilitates the installation or removal of the second sealing plug 53 as a whole during use.

[0038] Please see Figure 5 The connecting device 6 includes an insertion port 61, an insertion block 62, a mating groove 63, a mating block 64, and a rotating block 65. The main body 1 has an insertion port 61 inside, and the insertion block 62 is slidably installed inside the insertion port 61. The mating block 64 is fixedly installed on the top of the insertion block 62. The mating groove 63 is opened inside the main body 1 outside the mating block 64. The mating block 64 is threadedly connected to the mating groove 63. The rotating block 65 is fixedly installed on the surface of the mating block 64.

[0039] During use, by rotating the rotating block 65, the mating block 64 is rotated into the mating groove 63, so that the insertion block 62 is tightly attached to the inner wall of the insertion port 61, thus completing the sealing of the connection port 3.

[0040] Please see Figure 5 The rotating block 65 is hexagonal in shape, making it more convenient and less strenuous to rotate during use.

[0041] Please see Figure 1The main body 1 has a connecting pipeline between the oil inlet 4, the connection port 3 and the sealing port 2, which facilitates the flow of pumped oil inside the main body 1 during use and facilitates the smooth conduct of testing.

[0042] Please see Figures 1 to 6 A test method for a fuel pressure control valve pump pressure test tool, comprising the following steps:

[0043] 1. Placement: Place the main unit 1 in the valve body pump pressure chamber pump pressure test area;

[0044] 2. Sealing: The top cover 55 and the second sealing plug 53 are connected by the spring 56. Then, the second sealing plug 53 and the top cover 55 are inserted into the bottom of the sealing port 2 and tightened by the threaded end 54 and the meshing groove 52, so that the top cover 55 is tightly attached to the bottom part of the sealing port 2, ensuring the sealing of the component.

[0045] 3. Connection: By rotating the rotating block 65, the mating block 64 is rotated into the mating groove 63, so that the insertion block 62 is tightly attached to the inner wall of the insertion port 61, thus completing the sealing of the connection port 3;

[0046] 4. By attaching the side plate 71 to the side of the main body 1, and using the threaded rod 73 and threaded groove 72, the installation of the side plate 71 is completed. Then, the connector 75 is inserted into the first sealing plug 74, and then the first sealing plug 74 is rotated into the side plate 71. After fixing, the connector 75 is tightly attached to the inside of the oil inlet 4, thus completing the sealing of the component.

[0047] 5. Testing: By using connector 75, adjust the oil injection knob to slowly inject lubricating oil. Observe the pressure gauge reading and gradually increase the oil pressure to the 1350 bar pressure value required for the pump pressure test. Hold the pressure for 10 minutes. If no leakage occurs, the product is qualified and the pump pressure test is completed.

[0048] The working principle of the fuel pressure control valve pump pressure testing tool provided by this invention is as follows: When using this equipment, the main body 1 is placed in the target position for convenient subsequent testing. Then, the sealing device 5 seals the sealing port 2 inside the main body 1. The spring 56 connects the top cover 55 and the second sealing plug 53. The second sealing plug 53 and the top cover 55 are then inserted into the bottom of the sealing port 2 and tightened using the threaded end 54 and the meshing groove 52. Subsequently, due to the injection of pump oil, the top cover 55 automatically moves upward due to internal compression, allowing it to fit tightly against the bottom of the sealing port 2, ensuring the sealing of the components. The connecting device 6 can... To seal the connection port 3, the rotating block 65 is rotated so that the mating block 64 is inserted into the mating groove 63, and the insertion block 62 is pressed tightly against the inner wall of the insertion port 61, thus sealing the connection port 3. Finally, by using the mating device 7, the side plate 71 is attached to the side of the main body 1. The installation of the side plate 71 is completed by using the threaded rod 73 and the threaded groove 72. Then, the connector 75 is inserted into the first sealing plug 74, and the first sealing plug 74 is rotated into the side plate 71. After fixing, the connector 75 is pressed tightly against the inside of the oil inlet 4, thus sealing the component. Subsequently, the connector 75 can be used to facilitate the injection of pump oil into the main body 1 to complete the component's own testing.

[0049] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0050] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A fuel pressure control valve pump pressure test tool, characterized by, Include: The main machine (1), the bottom end of the main machine (1) is provided with a sealing port (2), and the side of the main machine (1) is provided with a connecting port (3) inside the main machine (1). The side of the main machine (1) is provided with an oil inlet (4); The sealing device (5) is fixedly installed at the bottom end of the sealing port (2) inside the main machine (1), and is used for sealing the upper and lower end holes of the sealing port (2); The sealing device (5) includes a sliding groove (51), an engagement groove (52), a second sealing plug (53), a threaded end (54), a top cover (55) and a spring (56). The bottom end of the sealing port (2) in the main machine (1) is provided with a sliding groove (51). The second sealing plug (53) is slidably installed in the sliding groove (51). The second sealing plug (53) is fixedly installed on the outer surface of the threaded end (54). The threaded end (54) is provided with an engagement groove (52) outside the main machine (1). The threaded end (54) is threadedly connected with the engagement groove (52). The top end of the second sealing plug (53) is provided with a top cover (55). The top cover (55) and the second sealing plug (53) are fixedly installed with a spring (56); The connecting device (6) is fixedly installed in the connecting port (3), which is used for sealing the connecting port (3) and ensuring the sealing effect of the equipment; The connecting device (6) includes an insertion port (61), an insertion block (62), a matching groove (63), a matching block (64) and a rotating block (65). The main machine (1) is provided with an insertion port (61). The insertion block (62) is slidably installed in the insertion port (61). The top end of the insertion block (62) is fixedly installed with a matching block (64). The main machine (1) is provided with a matching groove (63) outside the matching block (64). The matching block (64) is threadedly connected with the matching groove (63). The surface of the matching block (64) is fixedly installed with a rotating block (65); The matching device (7) is fixedly installed in the oil inlet (4). The matching device (7) includes a side plate (71), a first sealing plug (74), a connector (75) and a plug groove (76). The side plate (71) is fixedly installed on the side of the main machine (1). The first sealing plug (74) is threadedly installed in the side plate (71). The first sealing plug (74) is provided with a plug groove (76) inside. The plug groove (76) is provided with a connector (75), which is used to ensure the sealing effect of the oil inlet (4) and facilitate the delivery of oil.

2. The fuel pressure control valve pump pressure test tool of claim 1, wherein, The matching device (7) further includes a threaded groove (72) and a threaded rod (73). The main machine (1) and the side plate (71) are symmetrically provided with a threaded groove (72) inside. The threaded groove (72) is threadedly installed with a threaded rod (73).

3. The fuel pressure control valve pump pressure test tool of claim 1, wherein, The connector (75) is provided with an oil delivery groove inside, and the top end structure of the connector (75) is completely matched with the inner wall of the oil inlet (4).

4. The fuel pressure control valve pump pressure test tool of claim 1, wherein, The bottom end of the second sealing plug (53) is fixedly installed with a bottom plate.

5. The fuel pressure control valve pump pressure test tool of claim 1, wherein, The rotating block (65) is hexagonal in shape.

6. The fuel pressure control valve pump pressure test tool of claim 1, wherein, The main machine (1) is provided with a communication pipeline between the oil inlet (4), the connecting port (3) and the sealing port (2).

7. The method of testing a fuel pressure control valve pump pressure test tool according to any one of claims 1 to 6, wherein, The steps are as follows: 1) Place, the main machine (1) is placed in the valve pump pressure chamber, that is, the pump pressure test site; 2) Sealing, by using the spring (56), the top cover (55) and the second sealing plug (53) are connected, then the second sealing plug (53) and the top cover (55) are inserted into the sealing port (2) bottom end, and the threaded end (54) and the engagement groove (52) are used to tighten, so that the top cover (55) is tightly attached to the bottom end of the sealing port (2), and the sealing of the components is ensured; 3) Connection, by rotating the rotating block (65), the matching block (64) is turned into the matching groove (63), the insertion block (62) is tightly attached to the inner wall of the insertion port (61), and the sealing of the connection port (3) is completed; 4) Match, by attaching the side plate (71) to the side of the main machine (1), the threaded rod (73) and the threaded groove (72) are used to complete the installation of the side plate (71), then the connector (75) is inserted into the first sealing plug (74), then the first sealing plug (74) is turned into the side plate (71), and after fixing, the connector (75) is tightly attached to the inside of the oil inlet (4), and the sealing of the components is completed; 5) Detection, by using the connector (75), the oil injection knob can be adjusted to slowly inject lubricating oil, the pressure gauge value is observed, the oil pressure is gradually increased to 1350bar required by the pump pressure test, and the pressure is stabilized for 10 minutes. If there is no leakage, the product is qualified, and the pump pressure test is completed.

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