Jing Ping Liu

Title: Jing Ping Liu and Compression Pulse Starting for Free-Piston Engines

Introduction

Jing Ping Liu is an inventor associated with Rochester Hills, Michigan, and Ford Global Technologies, LLC. Her work includes a patent for a method of starting a free-piston internal combustion engine through controlled, cyclic piston movement.

Latest Patents

Liu’s listed patent, “Compression Pulse Starting of a Free Piston Internal Combustion Engine,” describes using an actuator—such as a hydraulic or pneumatic pump-motor, or an electric linear alternator-starter—to move the pistons and build compression in the cylinders. The actuator helps position the pistons so that air enters the cylinder, then applies periodic force to increase piston displacement and compression over successive cycles. As pressure and temperature rise toward ignition conditions, fuel is admitted, preferably by injection, and combustion begins first in one cylinder and then in the other. The method is designed to use stored energy in the moving pistons and compressed air while limiting the actuator capacity required for starting. Liu is credited with 1 patent in the information provided.

Career Highlights

Liu’s listed patent connects her inventive work with engine-starting technology and free-piston internal combustion systems. The patent identifies Ford Global Technologies, LLC, as the associated company.

Collaborations

The provided information names Wang Yanmin and Lixin Peng as Liu’s coworkers. It does not specify their roles in the patent or describe particular collaborative contributions.

Conclusion

Jing Ping Liu’s listed patent presents a cycle-by-cycle compression approach to starting a free-piston engine, using actuator-driven piston motion to build the conditions needed for combustion.