公开(公告)号：US20130156620A1

公开(公告)日：2013-06-20

申请号：US13819005

申请日：2011-03-21

申请人： Deuk-Jin Park ,  Ju-Tae Kim ,  Dong-Hun Kim ,  Wook-Hyeon Yoon ,  Byong-Seok Kim ,  Tae-Hyung Park ,  Eun Ha ,  Beom-Yong No

发明人： Deuk-Jin Park ,  Ju-Tae Kim ,  Dong-Hun Kim ,  Wook-Hyeon Yoon ,  Byong-Seok Kim ,  Tae-Hyung Park ,  Eun Ha ,  Beom-Yong No

IPC分类号： F04B7/00

CPC分类号： F04B7/00 ,  F02M59/022 ,  F02M59/20 ,  F02M59/205 ,  F02M59/22 ,  F02M59/462 ,  F04B1/053 ,  F04B11/0016 ,  F04B11/0033 ,  F04B49/12 ,  F04B49/16

摘要： The present invention relates to a fuel injection pump having a variable pressure chamber which can adjust a fuel injection timing according to each engine load with a simple structure and a lower manufacture cost compared to the conventional injection pump without a separate apparatus for moving a barrel as well as not modifying a shape of a plunger.The fuel injection pump having the variable pressure chamber further includes a pressure adjustment means including a contact plug of which lower portion is inserted and installed in the upper cover; a cylinder of which lower portion is inserted and installed in the contact plug and having the variable pressure chamber formed inside thereof; a main fuel pressing hole formed in the upper cover and the barrel to connect the variable pressure chamber of the cylinder and a plunger insertion hole of the barrel; a piston installed in the variable pressure chamber of the cylinder to enable an upward and downward sliding motion thereof; and a manual pressure adjustment unit installed on an upper portion of the cylinder to enable a vertical height adjustment to elastically support the upper portion of the piston.

摘要翻译： 本发明涉及一种具有可变压力室的燃料喷射泵，该可变压力室与常规注射泵相比，可以以简单的结构和较低的制造成本根据每个发动机负载调节燃料喷射正时，而不需要用于移动筒的单独装置 以及不改变柱塞的形状。 具有可变压力室的燃料喷射泵还包括压力调节装置，包括其下部插入并安装在上盖中的接触塞; 其下部插入并安装在接触塞中并具有形成在其中的可变压力室的圆筒; 主燃料按压孔，其形成在所述上盖和所述筒体中，以连接所述气缸的可变压力室和所述筒的柱塞插入孔; 安装在所述气缸的所述可变压力室中以使其能够向上和向下滑动的活塞; 以及安装在气缸的上部上的手动压力调节单元，以能够进行垂直高度的调整，以弹性地支撑活塞的上部。

公开(公告)号：US09051925B2

公开(公告)日：2015-06-09

申请号：US13819005

申请日：2011-03-21

申请人： Deuk-Jin Park ,  Ju-Tae Kim ,  Dong-Hun Kim ,  Wook-Hyeon Yoon ,  Byong-Seok Kim ,  Tae-Hyung Park ,  Eun Ha ,  Beom-Yong No

发明人： Deuk-Jin Park ,  Ju-Tae Kim ,  Dong-Hun Kim ,  Wook-Hyeon Yoon ,  Byong-Seok Kim ,  Tae-Hyung Park ,  Eun Ha ,  Beom-Yong No

IPC分类号： F02M59/20 ,  F04B7/00 ,  F02M59/02 ,  F02M59/22 ,  F02M59/46 ,  F04B49/12

CPC分类号： F04B7/00 ,  F02M59/022 ,  F02M59/20 ,  F02M59/205 ,  F02M59/22 ,  F02M59/462 ,  F04B1/053 ,  F04B11/0016 ,  F04B11/0033 ,  F04B49/12 ,  F04B49/16

摘要： A fuel injection pump having a variable pressure chamber which can adjust a fuel injection timing according to each engine load with a simple structure and a lower manufacture cost compared to the conventional injection pump without a separate apparatus for moving a barrel as well as not modifying a shape of a plunger.The fuel injection pump having the variable pressure chamber further includes a pressure adjustment mechanism including a contact plug of which lower portion is inserted and installed in the upper cover; a cylinder of which lower portion is inserted and installed in the contact plug and having the variable pressure chamber formed inside thereof; a main fuel pressing hole formed in the upper cover and the barrel to connect the variable pressure chamber of the cylinder and a plunger insertion hole of the barrel; a piston installed in the variable pressure chamber of the cylinder to enable an upward and downward sliding motion thereof; and a manual pressure adjustment unit installed on an upper portion of the cylinder to enable a vertical height adjustment to elastically support the upper portion of the piston.

摘要翻译： 一种具有可变压力室的燃料喷射泵，其与传统的喷射泵相比，能够以简单的结构和较低的制造成本根据每个发动机负载调节燃料喷射正时，而不需要用于移动枪管的单独装置以及不改变 柱塞的形状。 具有可变压力室的燃料喷射泵还包括压力调节机构，包括其下部插入并安装在上盖中的接触塞; 其下部插入并安装在接触塞中并具有形成在其中的可变压力室的圆筒; 主燃料按压孔，其形成在所述上盖和所述筒体中，以连接所述气缸的可变压力室和所述筒的柱塞插入孔; 安装在所述气缸的所述可变压力室中以使其能够向上和向下滑动的活塞; 以及安装在气缸的上部上的手动压力调节单元，以能够进行垂直高度的调整，以弹性地支撑活塞的上部。