Vehicle Fuel Pump Module including Improved Jet Pump Assembly

• Main Authors: TOUTANT DAVID, MASON PAUL
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2019
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BYUSING INERTIA OF FLUID TO BE PUMPED; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SIPHONS; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

The invention discloses a vehicle fuel pump module including an improved jet pump assembly. The vehicle fuel pump module includes a jet pump assembly and feed tube that delivers fuel to the assembly.The module includes a jet pump choke that is disposed in the jet pump assembly and provides a reduction of pressure of fluid within the jet pump assembly. The jet pump choke includes include a choke housing that defines a passageway that extends between a fluid inlet and outlet, and a slot that is formed in a surface of the passageway. A ball is fixed within and obstructs the passageway, and abutsthe slot. A fluid path defined between the ball and surfaces of the slot provides fluid communication between the fluid inlet and outlet of the choke housing. 本发明公开了一种包括改进的射流泵组件的车辆燃料泵模块。车辆燃料泵模块包括射流泵组件和将燃料输送至组件的供给管。模块包括射流泵阻流器，该射流泵阻流器设置在射流泵组件中并且提供射流泵组件内的流体的压力的减小。射流泵阻流器包括阻流器壳体，阻流器壳体限定在流体入口与出口之间延伸的通路以及形成于通路的表面中的狭槽。球被固定在通路内且阻塞通路，并且邻接狭槽。被限定在球与狭槽的表面之间的流体路径在阻流器壳体的流体入口与出口之间提供流体连通。