Throttling device and fuel vapor recovery system

A throttling device and fuel evaporation technology, which is applied in the direction of charging system, combustion engine, low-pressure fuel injection, etc., can solve the problems of cost increase and parts increase, and achieve the effect of suppressing increase and reducing cost

Active Publication Date: 2021-10-19
MIKUNI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned metal tank arrangement structure or fuel evaporated gas recovery device, it is necessary to include an exhaust valve including a dedicated driving source. oversized, so not ideal

Method used

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  • Throttling device and fuel vapor recovery system
  • Throttling device and fuel vapor recovery system
  • Throttling device and fuel vapor recovery system

Examples

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Comparison scheme
Effect test

Embodiment Construction

[0066] As follows, while referring to Figure 1 to Figure 11 , an embodiment of the present invention will be described.

[0067] Such as figure 1 As shown, a throttle device 1 according to one embodiment is assembled in the middle of an intake pipe 3b on the downstream side of an air cleaner 3a in an intake system 3 mounted on an engine 2 of a motorcycle.

[0068] Here, the throttle device 1 is provided with a rotational drive source 4 for rotationally driving the valve shaft 20 of the throttle valve 30 , and a position sensor 5 for detecting the opening position of the throttle valve 30 .

[0069] In addition, in addition to the engine 2 including the injector 2a for fuel injection, and the intake system 3, the motorcycle includes: a fuel tank 6, a metal tank 7, a pipe 8a connecting the fuel tank 6 and the metal tank 7, and connecting the metal tank 7 The pipe 8 b connected to the connector 74 of the throttle device 1 and the control unit 9 .

[0070] The metal tank 7 inc...

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Abstract

The present invention provides a throttling device and a fuel vapor recovery system. The throttling device includes: a throttle valve (30), which opens and closes the main passage (12); a main body (10), which has a main passage (12), a Pass through the secondary channel (14) of the throttle valve (30) and the gas channel (15, 14b) that guides the fuel evaporated gas into the main channel (12); the first adjustment valve (41) adjusts the channel area of ​​the secondary channel (14) ; The driving source (50) drives the first adjusting valve (41); and the second adjusting valve (61) adjusts the channel area of ​​the gas channel (15); the second adjusting valve (61) is driven by the driving source (50) force to drive. According to this, the increase of dedicated parts can be suppressed, cost reduction and miniaturization can be achieved, and the fuel evaporated gas can be reliably recovered without being released to the outside.

Description

technical field [0001] The present invention relates to a throttling device and a fuel evaporated gas recovery system including a structure for introducing fuel evaporated gas in a fuel tank of a motorcycle or the like into an intake system of an engine. Background technique [0002] In conventional vehicles such as motorcycles, in order to prevent the evaporated gas of fuel generated in the fuel tank from being released into the atmosphere, there is known an evaporated fuel treatment device provided with a metal tank ( canister), the charging piping that guides the evaporated gas from the fuel tank to the metal tank, the exhaust piping that guides the evaporated gas from the metal tank to the intake passage of the engine, and the metal tank is discharged by the negative pressure generated in the intake passage. The boil-off gas inside is exhausted into the intake passage (for example, refer to Patent Document 1 and Patent Document 2). [0003] However, in the above-mention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M25/08F02D9/02F02M69/32
CPCF02D9/02F02M25/08F02M69/32Y02T10/12
Inventor 関口眞一川口裕美北冈竜也
Owner MIKUNI CORP
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