Title:
DUAL-FUEL PRESSURIZED INJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/206881
Kind Code:
A1
Abstract:
The present application relates to a dual-fuel pressurized injection device, comprising a housing, a driving piston, and a plunger. A plurality of pipelines and cavities are arranged in the housing, the driving piston is movably arranged in a piston cavity, and the piston cavity is divided into an upper piston cavity and a lower piston cavity. When the driving piston is in a first position, the upper piston cavity is communicated with a first oil inlet pipeline and a first oil outlet pipeline, and the lower piston cavity is not communicated with the first oil inlet pipeline, the first oil outlet pipeline, and a second oil outlet pipeline respectively. When the driving piston is in a second position, the lower piston cavity is communicated with the second oil outlet pipeline, and the upper piston cavity is communicated with the first oil inlet pipeline. The plunger is movably arranged in a plunger cavity, a pressurizing cavity is defined by an end surface of the plunger and the plunger cavity, and the lower piston cavity is communicated with the pressurizing cavity. When the plunger moves from a third position to a fifth position and then moves to a fourth position, the second oil inlet pipeline and the pressurizing cavity are respectively in communication, non-communication and communication states.
Inventors:
YANG LI (CN)
HEI XIAOFU (CN)
WEN LIMING (CN)
HEI XIAOFU (CN)
WEN LIMING (CN)
Application Number:
PCT/CN2022/115137
Publication Date:
November 02, 2023
Filing Date:
August 26, 2022
Export Citation:
Assignee:
CHINA SHIPBUILDING POWER ENGINEERING INST CO LTD (CN)
International Classes:
F02M43/04; F02M43/02; F02M59/10; F02M59/44; F02M59/46
Domestic Patent References:
| WO2013045756A1 | 2013-04-04 |
Foreign References:
| CN114704410A | 2022-07-05 | |||
| CN101532451A | 2009-09-16 | |||
| CN111608836A | 2020-09-01 | |||
| CN114151248A | 2022-03-08 | |||
| CN205779392U | 2016-12-07 | |||
| US20160123286A1 | 2016-05-05 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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