Title:
LOW-CARBON FUEL INJECTION DEVICE AND ENGINE
Document Type and Number:
WIPO Patent Application WO/2023/098178
Kind Code:
A1
Abstract:
The present application relates to the technical field of engines, and disclosed in the present application are a low-carbon fuel injection device and an engine. The low-carbon fuel injection device comprises a housing (1), a solenoid valve (2), and a sealing member (3), a sleeve (4), a plug retainer (6), a valve rod (5), an elastic member (8) and a needle valve (7), which are sequentially arranged inside the housing (1), wherein the housing (1) cooperates with internal components thereof to form a hydraulic driving chamber (100), a fuel control chamber (200), a fuel collecting chamber (300) and an injection chamber (400); the solenoid valve (2) is configured to open or close the communication between a medium-pressure hydraulic oil inlet (112) and the hydraulic driving chamber (100); the valve rod (5) is configured to cooperate with the plug retainer (6) to open or close the communication between the fuel control chamber (200) and a high-pressure fuel inlet (111); the sleeve (4) cooperates with an inner wall of an accommodating chamber to form a circulation channel, which is used for enabling the fuel collecting chamber (300) to be in communication with the fuel control chamber (200); the sleeve (4) can slide relative to the accommodating chamber, so as to open or close the circulation channel; and the needle valve (7) cooperates with the elastic member (8) to be in sliding fit with the valve rod (5), so as to open or close the communication between the injection chamber (400) and an outlet of the accommodating chamber.
Inventors:
YANG LI (CN)
WEN LIMING (CN)
FANG LIANGJIE (CN)
WEN LIMING (CN)
FANG LIANGJIE (CN)
Application Number:
PCT/CN2022/115368
Publication Date:
June 08, 2023
Filing Date:
August 29, 2022
Export Citation:
Assignee:
CHINA SHIPBUILDING POWER ENGINEERING INST CO LTD (CN)
International Classes:
F02M61/10; F02M47/04; F02M61/16
Domestic Patent References:
| WO2020260285A1 | 2020-12-30 |
Foreign References:
| CN114109683A | 2022-03-01 | |||
| CN111810333A | 2020-10-23 | |||
| CN110529316A | 2019-12-03 | |||
| CN109209712A | 2019-01-15 | |||
| US6520150B1 | 2003-02-18 | |||
| JPH11190259A | 1999-07-13 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
Download PDF:
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