Hiroaki Kuboi

Title: Hiroaki Kuboi: Innovator in Fluid Pressure Technology

Introduction

Hiroaki Kuboi is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of fluid pressure technology, holding a total of 3 patents. His innovative designs focus on enhancing the efficiency and functionality of piston pumps.

Latest Patents

One of his latest patents is a fluid pressure rotating machine. This invention features a piston pump that includes a first biasing mechanism to bias a swash plate according to control pressure supplied. Additionally, it has a second biasing mechanism that biases the swash plate against the first mechanism. A regulator is also included to control the control pressure based on the self-pressure of the piston pump. The regulator consists of an outer spring and an inner spring that extend and compress with the tilting of the swash plate. A control spool adjusts the control pressure based on the biasing forces from both springs, while an auxiliary spring provides additional biasing force to the control spool. An adjusting mechanism is also present to modify the biasing force from the auxiliary spring.

Another notable patent is a pump displacement control device featuring a feedback lever. This device includes a servo piston that alters the tilt angle, a flow rate control spool displaced by input pressure, and a power control spool that responds to the discharge pressure of the pump. The control pressure regulating spool manages the control pressure affecting the servo piston. The feedback lever connects the servo piston to the control pressure regulating spool, directly abutting either the flow rate control spool or the power control spool to regulate the control pressure effectively.

Career Highlights

Hiroaki Kuboi is currently employed at Kyb Corporation, where he continues to innovate in the field of fluid dynamics. His work has significantly impacted the efficiency of hydraulic systems, making them more reliable and effective.

Collaborations

He has collaborated with notable coworkers such as Tetsuya Iwanaji and Gen Takei, contributing to various projects that enhance the capabilities of fluid pressure technologies.

Conclusion

Hiroaki Kuboi's contributions to fluid pressure technology through his patents and work at Kyb Corporation highlight his role as a key innovator in the industry. His inventions continue to pave the way for advancements in hydraulic systems.