Extension line structure of fuel metering valve
By adopting a two-core cable and an extension wire structure with an F-type PIN on the fuel metering valve, the problem of fuel metering valve failure due to vibration was solved, and stable operation of the equipment was achieved.
Patent Information
- Application Number
- CN202423152244.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing fuel metering valves are prone to failure when the engine vibration frequency is high, which can damage the PIN pin and prevent them from working properly.
A two-core cable and an F-type PIN are used to connect the fuel metering valve unit, forming an extension line structure. The flexible connection reduces vibration transmission and avoids direct action on the PIN.
This effectively avoids the problem of fuel metering valve failure due to vibration, improving the reliability and durability of the equipment.
Smart Images
Figure CN223693386U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fuel metering valve technical field, concretely is a fuel metering valve extension line structure. BACKGROUND
[0002] The existing fuel metering valve has the problem of failure under the condition that the engine vibration frequency is large.
[0003] Because the metering valve is installed at the oil inlet position of the high-pressure oil pump, the whole structure is installed on the engine, the engine vibration action is large, and because the metering valve and the high-pressure oil pump are hard connected, the PIN pin on the metering valve is failed due to the excessive vibration frequency in the vibration process, and the metering valve does not work. SUMMARY
[0004] The utility model discloses a fuel metering valve extension line structure to solve the problem in the above background.
[0005] In order to achieve the above object, the utility model provides the following technical scheme: a fuel metering valve extension line structure, including metering valve unit PIN, one end of metering valve unit PIN is connected two core cable line through welding, the one end of two core cable line is connected F type PIN pin through welding away from metering valve unit PIN, the waterproof plug is sleeved on two core cable line, the F type PIN pin is clamped with electric connector, and the output end of F type PIN pin penetrates electric connector.
[0006] Preferably, the metering valve unit PIN and the electric connector are connected with the shell, and the shell is provided with an outer plastic package at the position of the electric connector.
[0007] Preferably, the metering valve unit PIN is connected with the one end of the F type PIN pin by injection molding.
[0008] Preferably, the waterproof plug is crimped with the F type PIN pin away from the two core cable lines.
[0009] Compared with the prior art, the utility model has the beneficial effects that: the two core cable lines and the F type PIN pin are connected, the original hard connection is changed into the soft connection of the extension line mode, the extension line connector is away from the vibration position, and the phenomenon that the metering valve fails again is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is the whole structure schematic diagram of the utility model;
[0011] Figure 2 It is the F type PIN pin related structure schematic diagram of the utility model.
[0012] In the figure: 1, metering valve unit PIN; 2, two-core cable line; 3, F type PIN needle; 4, waterproof plug; 5, electric connector; 6, outer plastic. DETAILED DESCRIPTION
[0013] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0014] Please refer to 1-2, an embodiment provided by the utility model: a fuel metering valve extension line structure, including metering valve unit PIN1, one end of metering valve unit PIN1 is connected with two-core cable line 2 through welding, the end of two-core cable line 2 away from metering valve unit PIN1 is connected with F type PIN needle 3 through welding, waterproof plug 4 is sleeved on two-core cable line 2, electric connector 5 is clamped on F type PIN needle 3, the output end of F type PIN needle 3 penetrates electric connector 5, and metering valve unit PIN1 and F type PIN needle 3 are connected through two-core cable line 2, so that the vibration of engine is buffered by two-core cable line 2 at the position of two-core cable line 2, cannot directly act on F type PIN needle 3, PIN needle failure is avoided, and metering valve does not work.
[0015] Metering valve unit PIN1 and electric connector 5 are connected with shell, and outer plastic 6 is arranged on the shell at the position of electric connector 5; the end of metering valve unit PIN1 connected with F type PIN needle 3 is injection molded, which can prevent electric shock and effectively prevent water; the end of waterproof plug 4 away from two-core cable line 2 is crimped with F type PIN needle 3, so that the connection is more stable, and processing is facilitated.
[0016] Working principle: when the vibration of engine is transmitted from metering valve unit PIN1 to two-core cable line 2, since two-core cable line 2 is a soft structure, the vibration of engine is buffered, and the vibration of engine is not directly transmitted to F type PIN needle 3, so that PIN needle failure is avoided, and metering valve does not work.
Claims
1. A fuel metering valve extension line structure comprising a metering valve unit PIN (1), characterized by: One end of the metering valve unit PIN (1) is connected with a two-core cable line (2) by welding, the other end of the two-core cable line (2) is connected with an F-type PIN needle (3) by welding, a waterproof plug (4) is sleeved on the two-core cable line (2), an electric connector (5) is clamped on the F-type PIN needle (3), and an output end of the F-type PIN needle (3) penetrates through the electric connector (5).
2. A fuel metering valve extension line structure according to claim 1, characterized in that: The metering valve unit PIN (1) and the electric connector (5) are connected with a shell, and an outer plastic (6) is arranged on the shell and located at the position of the electric connector (5).
3. The fuel metering valve extension line structure of claim 1, wherein: One end of the metering valve unit PIN (1) connected with the F-type PIN needle (3) is injection-molded and wrapped.
4. The fuel metering valve extension structure of claim 1 wherein: The waterproof plug (4) is crimped with the F-type PIN needle (3) away from the two-core cable line (2).