公开(公告)号：US20180283332A1

公开(公告)日：2018-10-04

申请号：US15938503

申请日：2018-03-28

Applicant: Picospray, Inc.

Inventor： LIHANG NONG

IPC: F02M37/10 ,  F02M37/04 ,  F02M69/50 ,  F04B53/10

Abstract: A fuel delivery system includes a fuel pump assembly, an extension tube, and an injection nozzle assembly. The fuel pump assembly includes a pumping chamber, an inlet valve configured to direct fuel to the pumping chamber, a piston configured to pressurize fuel in the pumping chamber, an electromagnetic actuator operatively coupled to the piston, and an outlet check valve configured to direct pressurized fuel out of the pumping chamber. The electromagnetic actuator is configured to produce a force sufficient to move the piston to pressurize fuel in the pumping chamber and direct pressurized fuel through the outlet check valve. The extension tube is located downstream of the outlet check valve, and the injection nozzle assembly is located downstream of the extension tube. The injection nozzle assembly includes a nozzle check valve configured to selectively permit pressurized fuel received from the outlet check valve through the extension tube to exit the fuel delivery system.

公开(公告)号：US10947940B2

公开(公告)日：2021-03-16

申请号：US15938503

申请日：2018-03-28

Applicant: Picospray, Inc.

Inventor： Lihang Nong

IPC: F02M37/10 ,  F04B53/10 ,  F02M69/50 ,  F02M37/04 ,  F04B17/04 ,  F02M69/02 ,  F02M51/04

Abstract: A fuel delivery system includes a fuel pump assembly, an extension tube, and an injection nozzle assembly. The fuel pump assembly includes a pumping chamber, an inlet valve configured to direct fuel to the pumping chamber, a piston configured to pressurize fuel in the pumping chamber, an electromagnetic actuator operatively coupled to the piston, and an outlet check valve configured to direct pressurized fuel out of the pumping chamber. The electromagnetic actuator is configured to produce a force sufficient to move the piston to pressurize fuel in the pumping chamber and direct pressurized fuel through the outlet check valve. The extension tube is located downstream of the outlet check valve, and the injection nozzle assembly is located downstream of the extension tube. The injection nozzle assembly includes a nozzle check valve configured to selectively permit pressurized fuel received from the outlet check valve through the extension tube to exit the fuel delivery system.

公开(公告)号：US10330061B2

公开(公告)日：2019-06-25

申请号：US15356259

申请日：2016-11-18

Applicant: PICOSPRAY, INC.

Inventor： Lihang Nong

IPC: F02M51/06 ,  F02M61/18 ,  F02M51/04 ,  F02M57/02 ,  F02M61/02 ,  F02D41/20 ,  F02D41/30 ,  F02M59/02 ,  F02M59/10 ,  F02M61/16 ,  F02M61/20 ,  F02M51/08

Abstract: A fuel injector is provided. The fuel injector includes a sleeve having a first end proximate an outlet; a piston slidingly received in the sleeve, the piston having a first end proximate the outlet; a pumping chamber at least partially defined by the sleeve between the first end of the piston and the outlet; and a normally-open inlet valve through which fuel passes to enter the pumping chamber.

公开(公告)号：US10859073B2

公开(公告)日：2020-12-08

申请号：US15660265

申请日：2017-07-26

Applicant: PICOSPRAY, INC.

Inventor： Lihang Nong

IPC: F04B17/04 ,  F02M51/04 ,  F02M51/06

Abstract: A reciprocating piston pump includes a pumping chamber, an inlet valve through which fuel passes to enter the pumping chamber, a piston configured to pressurize the fuel entering the pumping chamber, an outlet valve through which the pressurized fuel passes to exit the pumping chamber, and a solenoid actuator assembly coupled to the piston. The solenoid actuator assembly includes a fixed stator, a coil, and a movable armature. The movable armature is configured to move toward a first end of the fixed stator in response to the coil being energized.

公开(公告)号：US20190285036A1

公开(公告)日：2019-09-19

申请号：US16427938

申请日：2019-05-31

Applicant: PICOSPRAY, INC.

Inventor： LIHANG NONG

IPC: F02M51/06 ,  F02M51/08 ,  F02M59/10 ,  F02M61/16 ,  F02D41/30 ,  F02M59/02 ,  F02M61/20 ,  F02M61/18 ,  F02D41/20 ,  F02M61/02 ,  F02M57/02 ,  F02M51/04

Abstract: A fuel injector is provided. The fuel injector includes a sleeve having a first end proximate an outlet; a piston slidingly received in the sleeve, the piston having a first end proximate the outlet; a pumping chamber at least partially defined by the sleeve between the first end of the piston and the outlet; and a normally-open inlet valve through which fuel passes to enter the pumping chamber.