Low-viscosity clean fuel pressure buildup unit, pressure buildup system and method, medium and engine

The invention provides a low-viscosity clean fuel pressure build-up unit, a pressure build-up system, a method, a readable medium and an engine. Wherein the low-viscosity clean fuel pressure building unit comprises a plunger pump, and the plunger pump is used for pressurizing and outputting low-pressure low-viscosity clean fuel; and a plunger supply amount output control element for controlling the supply amount of the low-viscosity clean fuel pressurized and output from the plunger pump; the pressure building unit is configured in the mode that the plunger supply quantity output control element receives a control element control signal obtained according to the target supply quantity, and the output control element acts according to the control element control signal, so that the plunger pump outputs the target supply quantity. 本发明提供低粘清洁燃料建压单元、建压系统、方法、可读介质以及发动机。其中，所述低粘清洁燃料建压单元包括柱塞泵，所述柱塞泵对低压的低粘清洁燃料加压输出；以及柱塞供给量输出控制元件，用于控制从柱塞泵加压输出的低粘清洁燃料供给量；其中，所述建压单元被配置为：所述柱塞供给量输出控制元件接收根据目标供给量得到的控制元件控制信号，所述输出控制元件根据所述控制元件控制信号作动，