Huawei Technologies Co., Limited

Shanghai Unihertz E-Commerce Co., Ltd.

Agold Communication (Shanghai) Co., Ltd.

National Oilwell Varco Petroleum Equipment (Shanghai) Co., Ltd.

Shanghai Shenli Technology Co., Ltd.

He Zhang

Xiao Xiao

Xing Wang

Wei Dai

Xiaohui Li

Xiaolei Zhang

Ang Li

Xiaojing Chen

Mengxi Hu

Ping Jia

Jingjian Zhang

Qishan Zhang

Jinjian Zhang

Yichong Zhang

Mengjin Yu

Quanquan Gan

Laibang Xue

Yongzhan Wang

A roller embossing method for flexible graphite polar plates of fuel cells comprises: (1) adjusting a clearance of an embossing roller pair of a roller press to a target thickness value of a monopolar plate; (2) feeding a flexible graphite slab in front of the embossing roller pair, and entangling the flexible graphite slab by means of opposite rotation of the embossing roller pair; (3) after the slab is entangled, continuing to forward roll the slab for 10-100 mm, and then reversely rolling the slab for 5-90 mm by means of synchronous and opposite rotation of an upper and a lower embossing roller, wherein one time of forward rolling and one time of reverse rolling are referred to as reciprocal rolling; (4) forming a polar plate after several times of reciprocal rolling, and separating the polar plate from the embossing rollers; (5) performing subsequent treatment on the roll-formed flexible graphite polar plate.

Roller embossing method for flexible graphite polar plates of fuel cells

A data line used in a mobile phone is disclosed. The data line used in a mobile phone includes a body, a first connection terminal, a second connection terminal, and connection lines connecting said first and second connection terminals are disposed inside said body; wherein said connection lines include two core data communication lines and two core voltage lines; said data line further includes a display screen disposed outside said body, and a DSP chip, a voltage detecting circuit, and/or a current detecting circuit disposed inside said body. Performing the data line used in a mobile phone of the present invention can monitor the voltage and/or current flowing through the data line in real time, and detect hidden dangers in time and eliminate the probability of damage during charging of the mobile phone.

Data line used in a mobile phone

A pump comprises a housing () having a cavity () with an inlet valve (), an apparatus () for raising fluid pressure in the cavity () and a discharge valve (), the discharge valve () comprises a valve head () movable between an open and closed position and a valve seat (), wherein the pump further comprises a booster piston () arranged in a booster cylinder (), the booster piston () has a first face () exposed to a low pressure zone () and a second face () exposed to fluid pressure in the cavity (), and at least one of the booster piston () and the booster cylinder () is movable relative to the other to add an opening force to the discharge valve. The pump is preferably a mud pump for circulating drilling mud through a drill string in a wellbore or a cement pump which may be of the type for pumping cement into a wellbore. Also disclosed is a method for facilitating opening a valve comprising a valve head () and a valve seat (), the valve head () is movable a predetermined distance from a closed position on the valve seat () to a fully open position distant on the valve seat, and the method comprises the step of adding a force to the valve head () along a small portion of the predetermined distance.

Pump and a valve assembly therefor

Embodiments of the present invention provide a load monitoring apparatus and method. The apparatus includes: an operation unit, configured to determine indication information for indicating a working state of each processing module in the operation unit; a working state unit, configured to receive the indication information from the operation unit, and determine load amount information in a current monitoring period according to the indication information, where the load amount information is used for indicating a load amount state of the operation unit in the current monitoring period; and a load monitoring unit, configured to receive the load amount information from the working state unit and record the load amount information, and send the load amount information to a system controller, so that the system controller adjusts a working frequency of the operation unit according to the load amount information.

Adjusting working frequency of a processor based on monitored idle time

Growing community of inventors

Shanghai, China

He Zhang