Regal Beloit America, Inc.

Mettler-Toledo International Trading (Shanghai) Co., Ltd.

Mettler Toledo (Changzhou) Measurement Technology Ltd.

Mettler Toledo (Changzhou) Precision Instrument Ltd.

Chagchai Co., Ltd.

Jiangsu Longmem Environmental Technology Co., Ltd.

Mettler Toledo (Changzhou) Scale & System Ltd.

Mettler-Toledo Measurement Technology Ltd.

Mettler-Toledo International Trading Co., Ltd.

Wei Wang

Jianwei Wu

Jing Li

Wenbing Li

Zhitie Lin

Jianzhong Sun

Xiaodong Nan

Peng Zhang

Fei Xiong

Jianwen Wang

Weifeng Wang

Xinhui Sun

Yuchen Zhao

Yujun Xu

Xingao Bian

Ansheng Xu

Dequn Huang

Zhongquan Shi

Juan Shen

Fenglian Wen

Ying Zhang

Youan Tang

Degang Hao

The present disclosure relates to a scaling-resistant and yellowing-resistant composite reverse osmosis membrane and a preparation method thereof. By modifying the stability and yellowing of a coating of the reverse osmosis membrane, and grafting 2-(methacryloyloxy)ethyl)dimethyl-3-sulphoproyl) ammonium hydroxide (MEDSAH) and ethylene glycol methacrylate (EGMA) as amphoteric monomers and N-(isobutoxymethyl)acrylamide (IBMA) as yellowing-resistant particles on a surface of the reverse osmosis membrane using active polymerization, the present disclosure forms a three-network high-performance PMEDSAH/PEGMA/PIBMA composite coating. By active regulation of a polyamide (PA) layer through the three systems, the reverse osmosis membrane has high compatibility due to PMEDSAH, and stability, high hydrophilicity and anti-protein fouling property due to PEGMA, as well as yellowing-resistant property by coating PIBMA on the surface. The test results show that the reverse osmosis membrane prepared by the present disclosure has excellent stability and yellowing-resistant property. And the flux and salt rejection are also higher than those of the existing reverse osmosis membranes.

Scaling-resistant and yellowing-resistant reverse osmosis composite membrane and preparation method thereof

A force sensor has a first end portion (), a second end portion (), a parallel-guiding mechanism (), a beam (), and a strain gauge (). The parallel-guiding mechanism () connects the first end portion () to the second end portion (). A main beam () of the beam has a flexible wall () and a rigid wall (). A first connecting part () connects the flexible wall to the first end portion, and a second connecting part () connects the rigid wall to the second end portion. The strain gauge () is fixed to the flexible wall (). The force sensor can measure a relatively small force.

Force sensor with strain gauge attached to flexible wall of a main beam of the force sensor

Disclosed is a fuel injection control system for a single-cylinder diesel engine, comprising: a set of operating condition sensors including an accelerator pedal position sensor and a cooling water temperature sensor, an input signal interface capable of receiving an input signal from the operating condition sensors, a control unit connected to the input signal interface, and a rotational speed sensor provided at a camshaft or starting shaft of the single-cylinder diesel engine. The rational speed sensor is connected to the control unit via a rotational speed correction circuit. The control system can easily and quickly determine the rotational speed and operating stroke of the single-cylinder diesel engine, so as to quickly determine the fuel injection quantity and injection timing of the single-cylinder diesel engine in real time.

Fuel injection control system for a single-cylinder diesel engine and control method therefor

A housing assembly for an electric motor having a rotor shaft rotatable about an axis includes a housing cover and a housing case. The housing cover defines a first bearing seat for rotatably supporting a first portion of the rotor shaft. The housing case defines a second bearing seat for rotatably supporting a second portion of the rotor shaft. At least one of the housing cover and the housing case includes a plurality of mounting lugs substantially circumferentially evenly spaced about the shaft axis for mounting the electric motor to a surface.

Electric motor

Growing community of inventors

Changzhou, China

Wei Wang