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Fuel filling device of engine

A filling device and engine technology, applied in the direction of engine components, combustion engines, machines/engines, etc., can solve the problems of inconvenient installation of fuel tanks, and achieve the effect of improving convenience and achieving centering alignment

Pending Publication Date: 2019-08-16
WENLING JENNFENG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned problems in the existing technology, and propose a fuel filling device for the engine. The present invention solves the technical problem that the installation of the existing fuel tank is inconvenient

Method used

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  • Fuel filling device of engine
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  • Fuel filling device of engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Specifically, as figure 1 As shown, the fuel filling device of the engine includes a housing 1, and the housing 1 has a columnar inner chamber 1a for filling the fuel tank a. In this embodiment, the inner chamber 1a is cylindrical and has two, two Open up between the two lumens 1a. The inner wall of the inner cavity 1a is used to guide and cooperate with the front end of the fuel tank a. On the inner wall of the inner chamber 1a near the bottom, there is an outwardly protruding stop ring portion 8 . The inner wall of the inner cavity 1a near the bottom has an auxiliary surface which is consistent with the shape of the front end of the fuel tank a, and the auxiliary surface is located below the stop ring part 8 . At the same time, there are at least three positioning pieces 2 evenly arranged around the center line of the cavity 1a in the rear position of the inner wall of the cavity 1a, and the positioning pieces 2 are arranged along the direction perpendicular to the ...

Embodiment 2

[0034] The technical solution in this embodiment is basically the same as the technical solution in Embodiment 1, the difference is that, as image 3 with Figure 4 As shown, in this embodiment, the positioning member 2 is an elastic piece capable of elastic deformation, and the elastic piece is fixed on the inner wall of the inner chamber 1a. Specifically, the elastic sheet is V-shaped and arranged in the axial direction, and an installation groove 11 is opened on the inner wall of the inner cavity 1a. On the edge of the port, a clamping plate 12 is arranged in the mounting groove 11 , and the clamping plate 12 is located at one end of the mounting groove 11 and is snap-connected with the housing 1 . The above design of the installation structure of the positioning member 2 enables the positioning member 2 to be easily and conveniently installed on the housing 1, thereby improving the assembly efficiency of the device.

Embodiment 3

[0036] The technical solution in this embodiment is basically the same as the technical solution in Embodiment 1, the difference is that, as Figure 5 As shown, in this embodiment, the inner wall of the inner cavity 1a has a mounting through groove 7, and the positioning member 2 is integrally formed on the inner wall of the inner cavity 1a and is located in the positioning claw of the mounting through groove 7, and the positioning claw can be opposite to the inner wall. The inner wall of the chamber 1a elastically shrinks. Through the above design of the positioning part 2, the positioning part 2 does not need to be assembled, which is beneficial to improve the assembly efficiency of the device.

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Abstract

The invention provides a fuel filling device of an engine, and belongs to the technical field of machinery. The fuel filling device solves the problem that an existing fuel tank is inconvenient to install. The fuel filling device of the engine comprises a shell, wherein the shell is internally provided with an inner cavity which is used for filling a fuel tank and is in a columnar shape, and at least three positioning parts which are uniformly distributed around the central line of the inner cavity in the circumferential direction are arranged on the inner wall of the inner cavity, the positioning parts protrude out of the side wall of the inner cavity in the direction perpendicular to the side wall of the inner cavity through springs or an elastic action mode of the positioning parts, andcan be retracted into the side wall of the inner cavity under the action of external force, and the springs corresponding to the positioning parts or the elasticity of the positioning parts have thesame elastic coefficient. According to the device, through the matching design of the columnar inner cavity and the positioning parts, the fuel tank can be connected in an inserted mode, the installation personnel just insert the fuel tank into the inner cavity, then the installation can be achieved, and the installation convenience of the fuel tank is greatly improved; and moreover, the device issimple in structure, good in universality and suitable for modification of various fuel oil engines.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a fuel filling device for an engine. Background technique [0002] At present, in the field of small vehicles such as motorcycles, or in small-scale agricultural and forestry machinery such as lawn mowers, tillers, rotary tillers, trimmers, etc., it is generally equipped with a small engine that uses gasoline or diesel as fuel. An independent mechanical equipment, the above design has the characteristics of light weight, small volume and simple structure. However, the emissions of engines that use gasoline or diesel as fuel are relatively large, which is likely to cause environmental pollution. [0003] For this reason, in the prior art, generally by adopting clean gas such as methane, propane as fuel to replace gasoline or diesel oil, and the gaseous fuel such as methane, propane generally adopts the mode of filling to store in the fuel tank, so just need to be on-the-spot A st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M21/02
CPCF02M21/029F02M21/0296F02M21/0221Y02T10/30
Inventor 张长义陆先高蔡卓
Owner WENLING JENNFENG IND
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