High-temperature-resistant and high-pressure-resistant fuel pump assembly of hybrid electric vehicle

Abstract

The utility model discloses a high temperature and high pressure resistant fuel pump assembly for a hybrid electric vehicle, which belongs to the technical field of fuel pump assemblies and comprises an oil storage barrel, a cover plate is fixedly connected to the upper surface of the oil storage barrel, supporting rods are fixedly connected to the upper surface of the oil storage barrel, and the supporting rods are symmetrically distributed about the center of the oil storage barrel. The upper surface of the supporting rod is fixedly connected with a connecting disc; the upper surface of the connecting disc is fixedly connected with an oil inlet connector, and the upper surface of the connecting disc is fixedly connected with an oil outlet connector; the upper end of the front side of the oil storage barrel is movably connected with one end of a lever, and the other end of the lever is fixedly connected with a floater; the surface of the oil storage barrel is fixedly connected with a baffle. According to the high-temperature-resistant and high-pressure-resistant fuel pump assembly of the hybrid electric vehicle, due to the arrangement of the scraping plate and the scraping strip, oil sludge attached to the surface of a device is effectively reduced, abrasion between oil sludge particles and the device is reduced, the fuel pumping precision and the pressure stability are guaranteed, and the overall performance of a fuel pump is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel pump assembly technical field, concretely is a kind of high-temperature and high-pressure fuel pump assembly of hybrid electric vehicle. BACKGROUND

[0002] Fuel pump assembly is the core component in the fuel supply system of automobile, its function is to pump fuel from fuel tank and pressurize, deliver to the fuel injector of engine, ensure that engine can obtain stable, sufficient fuel supply under various operating conditions;Hybrid electric vehicle fuel pump assembly is the key component in the fuel supply system of hybrid electric vehicle, needs to operate stably under high temperature and high pressure, its performance directly influences the working efficiency and reliability of engine;After long time of fuel pump assembly work, fuel pump is prone to heat, cause internal parts damage, affect normal use of fuel pump, and shorten the service life of fuel pump, affect normal driving of vehicle.

[0003] In order to overcome the above-mentioned defects, the prior art (application number CN202122918137.3, application date is November 25, 2021 Chinese patent) energy-saving safety type electric fuel pump assembly, including fuel pump assembly and filter device, the filter device is installed in the fuel pump assembly, the filter device includes fuel filter, first filter screen and second filter screen, the first filter screen is fixedly installed on one side in the fuel pump assembly, the fuel filter is fixedly installed on one side of the first filter screen, the second filter screen is installed at the bottom of the fuel filter, the top cover is fixedly installed on the top of the fuel pump assembly, the fuel pressure regulator is fixedly installed in the fuel pump assembly;Fuel pump can be filtered in time, reduce the additional burden of fuel pump, ensure normal use of fuel pump, at the same time, after long time of fuel pump assembly use, heat dissipation work can be carried out in time, electric fuel pump is cooled, part damage is reduced, and the use time of electric fuel pump assembly is prolonged.

[0004] With the increase of use time and the influence of working environment, the sealing element inside the device will gradually age, the aging sealing element will appear deformation, embrittlement and other phenomena, produce some chippings, these chippings will also be left on the surface of fuel pump device, form oil sludge;The above-mentioned device cannot remove the oil sludge left on the surface of fuel pump assembly during use, cause the temperature of device to rise continuously, at the same time, make fuel pump long-term work in high temperature state, greatly influence its performance and life, and make fuel output pressure unstable, accelerate the wear of parts, shorten the service life of parts. UTILITY MODEL CONTENTS

[0005] The utility model discloses a high temperature and high pressure fuel pump assembly of hybrid electric vehicle can solve the problem of the oil mud remaining on the surface of fuel pump assembly in the prior art, and the temperature of the device is continuously increased, and the fuel pump is in a high temperature working state for a long time, which greatly influences the performance and service life of the fuel pump, and the fuel output pressure is unstable, and the service life of the components is shortened.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a high temperature and high pressure fuel pump assembly of hybrid electric vehicle, including oil storage bucket, the upper surface fixed connection of oil storage bucket has the apron, and the upper surface fixed connection of oil storage bucket has the support rod, and support rod about the oil storage bucket center symmetry distribution, and support rod upper surface fixed connection has the connecting disc, the upper surface fixed connection of connecting disc has the oil inlet joint, and the upper surface fixed connection of connecting disc has the oil outlet joint, the one end swing joint of lever is formed in the oil storage bucket front side upper end, and the other end fixed connection of lever has the float, the surface fixed connection of oil storage bucket has the baffle, and the baffle about the oil storage bucket center symmetry distribution, and the baffle surface fixed connection has the sliding rod, and simultaneously sliding rod slidingly penetrates and is connected with the heat dissipation strip.

[0007] Preferably, the upper end of the rear side of the oil storage bucket is fixedly connected with a fixed plate, and a rotating shaft is rotatably arranged in the fixed plate.

[0008] Preferably, the upper end of the rear side of the oil storage bucket is fixedly connected with a fixed block, and a limiting rod is fixedly connected to the surface of the fixed block, and the limiting rod is slidingly connected with a scraper.

[0009] Preferably, the upper end of the rear side of the oil storage bucket is fixedly connected with a motor, and the output end of the motor is fixedly connected with the rotating shaft, and the surface of the rotating shaft is threadedly connected with the scraper.

[0010] Preferably, the surface of the scraper is fixedly connected with a scraping strip, and the surface of the scraping strip and the surface of the scraper are attached to the surface of the oil storage bucket.

[0011] Preferably, one end of a connecting column is fixedly connected to the surface of the heat dissipation strip, and the other end of the connecting column is fixedly connected with a connecting plate, and the lower surface of the connecting plate close to one end of the rotating shaft is convex, and the heat dissipation strip is attached to the surface of the oil storage bucket, a fixed rod is fixedly connected to the surface of the rotating shaft, and the upper surface of the fixed rod is convex.

[0012] Preferably, one end of a buffer spring is fixedly connected to the lower surface of the connecting plate, and the other end of the buffer spring is fixedly connected with the baffle.

[0013] Compared with the prior art, the utility model has the beneficial effects that: the high temperature and high pressure fuel pump assembly of hybrid electric vehicle adopts a novel structure design, and the specific contents are as follows:

[0014] (1) The high-temperature and high-pressure resistant fuel pump assembly of the hybrid electric vehicle effectively reduces the oil sludge attached to the surface of the device, reduces the wear between the oil sludge particles and the device, ensures the fuel pumping accuracy and pressure stability, and improves the overall performance of the fuel pump.

[0015] Further, the service life of each component of the fuel pump is prolonged, the cost of maintenance and replacement of components is reduced, and the economic benefit of the fuel pump assembly is improved.

[0016] (2) The high-temperature and high-pressure resistant fuel pump assembly of the hybrid electric vehicle greatly increases the heat dissipation efficiency of the fuel pump, and enables the heat to be transferred more quickly and efficiently, significantly improving the heat dissipation efficiency.

[0017] Further, it ensures that the fuel pump can maintain within the appropriate working temperature range under various complex working conditions, and will not cause performance degradation due to overheating, ensuring stable operation of the device.

[0018] (3) The high-temperature and high-pressure resistant fuel pump assembly of the hybrid electric vehicle improves the stability of the device during operation, reduces the wear between the heat dissipation strip and the oil storage bucket, and improves the reliability of the fuel pump assembly. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the lever and float connection structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the support rod and connecting disc connection structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the oil storage bucket and motor connection structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the fixed block and limiting rod connection structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the scraper and fixed rod connection structure of the utility model;

[0024] Figure 6 It is a schematic diagram of the heat dissipation strip and connecting column connection structure of the utility model;

[0025] Figure 7 It is a schematic diagram of the baffle and buffer spring connection structure of the utility model.

[0026] In the figure: 1, oil storage barrel; 2, cover plate; 3, connecting disc; 4, support rod; 5, oil inlet joint; 6, oil outlet joint; 7, lever; 8, float; 9, motor; 10, rotating shaft; 11, fixed plate; 12, fixed block; 13, limiting rod; 14, scraper; 15, fixed rod; 16, scraping strip; 17, heat dissipation strip; 18, connecting column; 19, baffle; 20, sliding rod; 21, connecting plate; 22, buffer spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] Embodiment one: through the setting of the support rod 4, the cover plate 2 and the connecting disc 3, the stability of the device during work is improved, as shown in Figures 1-3 As shown: including oil storage barrel 1, the upper surface of oil storage barrel 1 is fixedly connected with cover plate 2, and the upper surface of oil storage barrel 1 is fixedly connected with support rod 4, and the support rod 4 is symmetrically distributed about the center of oil storage barrel 1, and the upper surface of support rod 4 is fixedly connected with connecting disc 3, the upper surface of connecting disc 3 is fixedly connected with oil inlet joint 5, and the upper surface of connecting disc 3 is fixedly connected with oil outlet joint 6, one end of lever 7 is movably connected with the front upper end of oil storage barrel 1, and the other end of lever 7 is fixedly connected with float 8, baffle 19 is fixedly connected with the surface of oil storage barrel 1, and baffle 19 is symmetrically distributed about the center of oil storage barrel 1, and baffle 19 is fixedly connected with sliding rod 20 on the surface, and sliding rod 20 is slidably penetrated through heat dissipation strip 17.

[0029] The staff installs the device in the fuel system of the hybrid electric vehicle, and connects the oil inlet joint 5 and the oil outlet joint 6 on the surface of the device through the external pipeline, the oil inlet joint 5 is responsible for introducing fuel from the fuel storage part of the vehicle, and the oil outlet joint 6 delivers the fuel treated by the fuel pump to the components that need fuel such as the engine, so that the fuel can flow smoothly, avoiding the problem of poor oil intake caused by shaking, ensuring that the device can operate stably, and through the setting of the buffer spring 22 and the limiting rod 13, the stability of the device during work is improved, and the wear between the heat dissipation strip 17 and the oil storage barrel 1 is reduced, and the reliability of the fuel pump assembly is improved.

[0030] Embodiment two: in this embodiment, different from embodiment one, through the setting of the scraper 14, the scraping strip 16 and the limiting rod 13, the oil sludge attached to the surface of the device is effectively reduced, as shown in Figures 4-5As shown: the oil tank 1 rear side upper end fixedly connected with the fixed plate 11, and the fixed plate 11 inside rotationally arranged with the shaft 10, the oil tank 1 rear side upper end fixedly connected with the fixed block 12, and the fixed block 12 surface fixedly connected with the limiting rod 13, and the limiting rod 13 slidingly penetrates the scraper 14, the oil tank 1 rear side upper end fixedly connected with the motor 9, and the motor 9 output end fixedly connected with the shaft 10, and the shaft 10 surface is threadedly connected with the scraper 14, the scraper 14 both sides are fixedly connected with the fixed rod 15, and the scraper 14 surface is fixedly connected with the scraping strip 16, and the scraping strip 16 surface and the scraper 14 surface are attached to the surface of the oil tank 1.

[0031] When the motor 9 starts, the motor 9 drives the output shaft 10 to rotate inside the fixed plate 11, and the surface of the shaft 10 is threadedly connected with the scraper 14, and the limiting rod 13 slidingly penetrates the scraper 14, so that the scraper 14 and the scraping strip 16 slide on the surface of the oil tank 1, effectively reducing the oil sludge attached to the surface of the device, reducing the wear between the oil sludge particles and the device, ensuring the fuel pump precision and pressure stability, improving the overall performance of the fuel pump, and prolonging the service life of the fuel pump components, while reducing the cost of maintenance and replacement of parts, and improving the economic benefit of the fuel pump assembly.

[0032] In this embodiment, unlike example two, by setting, Figures 6-7 As shown: the surface of the heat dissipation strip 17 is fixedly connected with one end of the connecting column 18, and the other end of the connecting column 18 is fixedly connected with the connecting plate 21, and the lower surface of the connecting plate 21 is close to one end of the shaft 10, and is convex, and the heat dissipation strip 17 is attached to the surface of the oil tank 1, the surface of the shaft 10 is fixedly connected with the fixed rod 15, and the upper surface of the fixed rod 15 is convex, the lower surface of the connecting plate 21 is fixedly connected with one end of the buffer spring 22, and the other end of the buffer spring 22 is fixedly connected with the baffle 19.

[0033] As the shaft 10 rotates inside the fixed plate 11, the surface of the fixed rod 15 rotates, and when the fixed rod 15 contacts the connecting plate 21, the fixed rod 15 pushes the connecting plate 21 and drives the heat dissipation strip 17 to slide on the surface of the sliding rod 20, and the buffer spring 22 extends to the surface of the connecting plate 21, so that the heat dissipation strip 17 slides on both sides of the oil tank 1, greatly increasing the heat dissipation efficiency of the fuel pump, allowing heat to be transferred more quickly and efficiently, significantly improving heat dissipation efficiency, and ensuring that the fuel pump can maintain a suitable working temperature range under various complex working conditions, without performance degradation due to overheating, ensuring stable operation of the device.

[0034] The above is the working process of the entire device, and the contents not described in detail in the specification all belong to the existing technology known to those skilled in the art.

[0035] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature and high-pressure fuel pump assembly for a hybrid vehicle, comprising an oil storage bucket (1), a cover plate (2) is fixedly connected to the upper surface of the oil storage bucket (1), a support rod (4) is fixedly connected to the upper surface of the oil storage bucket (1), and the support rod (4) is symmetrically distributed about the center of the oil storage bucket (1), and a connecting disc (3) is fixedly connected to the upper surface of the support rod (4); Characterized in that: The upper surface of the connecting disc (3) is fixedly connected with an oil inlet joint (5), and the upper surface of the connecting disc (3) is fixedly connected with an oil outlet joint (6); One end of a lever (7) is movably connected to the front upper end of the oil storage bucket (1), and the other end of the lever (7) is fixedly connected with a float (8); A baffle (19) is fixedly connected to the surface of the oil storage bucket (1), the baffle (19) is symmetrically distributed about the center of the oil storage bucket (1), and a sliding rod (20) is fixedly connected to the surface of the baffle (19), and the sliding rod (20) is slidably connected with a heat dissipation strip (17).

2. The high temperature and high pressure fuel pump assembly for a hybrid vehicle of claim 1, wherein: A fixed plate (11) is fixedly connected to the upper end of the rear side of the oil storage bucket (1), and a rotating shaft (10) is rotatably arranged in the fixed plate (11).

3. The high temperature and high pressure fuel pump assembly for a hybrid vehicle of claim 2, wherein: A fixed block (12) is fixedly connected to the upper end of the rear side of the oil storage bucket (1), a limiting rod (13) is fixedly connected to the surface of the fixed block (12), and a scraper (14) is slidably connected to the limiting rod (13).

4. The high temperature and high pressure fuel pump assembly for a hybrid vehicle of claim 3, wherein: A motor (9) is fixedly connected to the upper end of the rear side of the oil storage bucket (1), the output end of the motor (9) is fixedly connected with the rotating shaft (10), and the surface of the rotating shaft (10) is threadedly connected with the scraper (14).

5. The high temperature and high pressure fuel pump assembly for a hybrid vehicle of claim 4, wherein: The surface of the scraper (14) is fixedly connected with a scraping strip (16), and the surface of the scraping strip (16) and the surface of the scraper (14) are attached to the surface of the oil storage bucket (1).

6. The high temperature and high pressure fuel pump assembly for a hybrid vehicle of claim 5, wherein: One end of a connecting column (18) is fixedly connected to the surface of the heat dissipation strip (17), the other end of the connecting column (18) is fixedly connected with a connecting plate (21), the lower surface of the connecting plate (21) is convex near one end of the rotating shaft (10), the heat dissipation strip (17) is attached to the surface of the oil storage bucket (1), the surface of the rotating shaft (10) is fixedly connected with a fixed rod (15), and the upper surface of the fixed rod (15) is convex.

7. The high temperature and high pressure fuel pump assembly for a hybrid vehicle of claim 6, wherein: One end of a buffer spring (22) is fixedly connected to the lower surface of the connecting plate (21), and the other end of the buffer spring (22) is fixedly connected with the baffle (19).

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