Inlet metering valve for engine fuel pump

• Main Authors: KOLKMAN MARC, LEBLAY ARNAUD
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

An inlet metering valve (IMV) assembly for an engine fuel pump (10) of a gasoline direct injection (GDI) system includes an IMV cartridge assembly including an IMV valve body (42) and a pole shoe (44) including a peripheral wall (47) and a longitudinal cavity housing a guide (62), an armature (60), and a metering pin (68) secured to the armature (60), where the peripheral wall (47) of the pole shoe (44) includes a groove, and a solenoid assembly (28) disposed in the groove. The groove includes a first ramp-shaped portion (70), a second ramp-shaped portion (71), and a narrowed portion (72) forming an intersection portion connecting the first ramp-shaped portion (70) to the second ramp-shaped portion (71). 一种用于汽油直喷(GDI)系统的发动机燃料泵(10)的入口计量阀(IMV)组件包括IMV筒组件和螺线管组件(28)，该IMV筒组件包括IMV阀体(42)和极靴(44)，极靴(44)包括周壁(47)和纵向空腔，该纵向空腔容纳引导件(62)、电枢(60)以及计量销(68)，计量销(68)固定到电枢(60)，其中，极靴(44)的周壁(47)包括凹槽，该凹槽包括第一斜坡形部分(70)、第二斜坡形部分(71)以及变窄部分(72)，变窄部分(72)形成将第一斜坡形部分(70)连接到第二斜坡形部分(71)的相交部分。