Hangzhou City University

Zhejiang University

Wenzhou University

Shanghai Marine Equipment Research Institute

Longlong Leng

Qiang Zuo

Pengfei Wang

Zhuhua Deng

Wei Shao

Liying Lou

Yanwei Zhao

Qilin Jin

Zheng Wang

Quankun Li

Yan Ren

Xian Zhang

Qianqian Lu

Jie Xiong

Jiaqi Hu

Yu Huang

Binbin Chen

Yaolan Jin

Yongzhuang Liu

A two-dimensional electro-hydraulic servo valve based on a dual-redundancy transmission mechanism, including a valve body, a valve spool inside the valve body, and a valve sleeve on an outside of the valve spool. A low-pressure chamber is disposed between the valve spool and the valve sleeve; the valve body is connected to a servomotor through a transmission mechanism; the transmission mechanism includes a spool fork and a motor toggle, and each end of the motor toggle is connected to a spherical connector; the spherical connector is rotatable with a centerline of a connection end of the motor toggle as an axis; each end of the spool fork is slidably connected to a corresponding spherical connector; a middle part of the spool fork is connected to the valve spool, and a middle part of the motor toggle is connected to a rotor of the servomotor.

Two-dimensional electro-hydraulic servo valve based on dual redundancy transmission mechanism

The present disclosure provides a two-dimensional motor piston pump, including a two-dimensional motor and a two-dimensional piston pump. The two-dimensional motor and the two-dimensional piston pump are nested with each other and arranged coaxially. The two-dimensional motor includes a stator and an outer rotor, and the outer rotor is coaxial with the stator and is sleeved outside the stator. The two-dimensional piston pump includes: a flow distribution mechanism including a flow distribution rotor and a pump body, a piston mechanism including a left cam and a right cam; a roller assembly including a roller and a roller shaft, and a pump housing, a left end cover, and a right end cover.

Two-dimensional motor piston pump

A two-dimensional motor combination piston pump by combining two independent two-dimensional piston pumps into one structure is provided. The combination piston pump includes a two-dimensional motor and a two-dimensional piston pump. The outer rotator serves as the piston and the flow distribution mechanism of the two-dimensional piston pump. While operating, outer rotator rotates and moves axially.

Piston pump with two motor stators and one motor rotor having cam driving piston and flow distributor

An electro-hydraulic servo valve, which has an adjustable null position and can be directly driven by the motor, is provided and includes four parts: a slide valve assembly, a two-dimensional motor, a magnet resetting-to-null mechanism, and a displacement sensor, and the four parts are set coaxially arranged. The slide valve assembly is a conventional two-dimensional servo valve structure. The two-dimensional motor may directly drive the valve core to rotate to further control a size of an opening opened by a valve. The magnet resetting-to-null mechanism is configured to reset the valve to the null position. The displacement sensor may monitor a position of the valve core in real-time and feedback signals to achieve closed-loop controlling.

Two-dimensional motor-direct-driving electro-hydraulic servo valve with adjustable null position

Growing community of inventors

Hangzhou, China

Longlong Leng