US 11,788,458 B2Granted

Fuel supply system for active pre-combustor

AssigneeGuangzhou Automobile Group Co., Ltd.

InventorsJian Wu, Jingsi Wei, Shan Wu, Hanjun Xu, Guixiang Ma, Mingjia Liu

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Abstract

A fuel supply system for an active pre-combustor, including a cylinder assembly. The cylinder assembly comprises a cylinder head, a cylinder body, and a piston. The cylinder head, the cylinder body and the piston form a main combustor. The fuel supply system for the active precombustor further includes a precombustion chamber assembly and a plunger air pump assembly. The pre-combustor assembly is communicated with the main combustor. The plunger air pump assembly is communicated with the pre-combustor assembly. The plunger air pump assembly can actively mix air with fuel into a mixed fuel and deliver it into the pre-combustor assembly (20). The fuel supply system for the active pre-combustor supplies the mixed fuel to the pre-combustor on the basis of a reciprocating stroke opposite to the piston by adding the plunger air pump assembly on the pre-combustor assembly, and is safe, reliable, and efficient.

Claims16

Dependent claims

A fuel supply system for an active pre-combustor, comprising:

a main combustor, comprising:
a cylinder head;
a cylinder body;
and
a piston;
a pre-combustor assembly;
and
a plunger air pump assembly;
wherein the pre-combustor assembly is communicated with the main combustor, and the plunger air pump assembly is communicated with the pre-combustor assembly, and wherein the plunger air pump assembly is capable of mixing air and fuel into mixed fuel and delivering the mixed fuel to the pre-combustor assembly;
wherein the plunger air pump assembly comprises a plunger air pump driver, a plunger air pump rod and a plunger air pump spring, wherein the plunger air pump driver is configured to drive the plunger air pump rod, and the plunger air pump spring is wound on the plunger air pump rod, so that the plunger air pump rod is capable of sliding up and down in a plunger air pump cavity under a driving of the plunger air pump driver;
wherein the plunger air pump assembly further comprises a fuel supply pipeline assembly, which is communicated with an engine and the plunger air pump cavity, wherein the fuel supply pipeline assembly comprises a plunger air pump pipeline intake pipe, an air compression device and a gasification mixing device, wherein an inlet end of the plunger air pump pipeline intake pipe is arranged between an engine air filter and an engine intake pipe, and the air compression device and the gasification mixing device are communicated with the plunger air pump pipeline intake pipe through pipelines.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/756,708Filed 28 Dec 2020
Priority: CN 202011124960.020 Oct 2020
Published: US 2023/0160334 A125 May 2023
Granted: 17 Oct 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

F02B 19/109
With only one pre-combustion chamber: with injection of a fuel-air mixture into the pre-combustion chamber by means of a pump, e.g. two-cycle engines
F02B 19/00
Engines characterised by precombustion chambers
F02B 19/06
Engines characterised by precombustion chambers: with auxiliary piston in chamber for transferring ignited charge to cylinder space
F02B 19/10
Engines characterised by precombustion chambers: with fuel introduced partly into pre-combustion chamber, and partly into cylinder