Title:
AUTOMATIC AIR VALVE CONTROL SYSTEM FOR GASOLINE ENGINE AND GASOLINE ENGINE
Document Type and Number:
WIPO Patent Application WO/2020/083306
Kind Code:
A1
Abstract:
An automatic air valve control system for a gasoline engine (100), the gasoline engine (100) comprising a carburetor (20), and a cylinder (30) connected to the carburetor. A throttle (24) is provided in the carburetor (20). An air intake channel (21) is provided between the carburetor (20) and the cylinder (30), the air intake channel (21) being provided with an air inlet. The automatic air valve control system comprises a choke valve (23), a power unit for driving the choke valve (23), a controller connected to the power unit, and a temperature detection unit connected to the controller. The choke valve (23) is used to open or close the air inlet. The power unit comprises a servomotor (22). The choke valve (23) connects to an elastic component (233). The temperature detection unit is used to detect the temperature of the cylinder (30), and when the detected temperature is less than a preset temperature, the controller controls the servomotor (22) to drive the choke valve (23) to rotate in a first direction to close the air inlet. The elastic component (233) stores energy. The throttle (24) opens to a first present angle in response to the rotation of the choke valve (23). Starting of the gasoline engine (100) causes the throttle (24) to open to a second preset angle, and elastic energy of the elastic component (233) is released, driving the choke valve (23) to open the air inlet.
Inventors:
GUO NING (CN)
FENG YU (CN)
FENG YU (CN)
Application Number:
PCT/CN2019/112711
Publication Date:
April 30, 2020
Filing Date:
October 23, 2019
Export Citation:
Assignee:
SUZHOU CLEVA PRECISION MACHINERY & TECH CO LTD (CN)
International Classes:
F02M1/08
Foreign References:
| CN109184960A | 2019-01-11 | |||
| CN105484899A | 2016-04-13 | |||
| US6494439B1 | 2002-12-17 | |||
| CN209539469U | 2019-10-25 | |||
| CN201496169U | 2010-06-02 | |||
| CN203175704U | 2013-09-04 | |||
| CN105464875A | 2016-04-06 | |||
| CN201170141Y | 2008-12-24 |
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