Dongfeng Commercial Vehicle Joint Venture Company Settled in Shiyan City Today


The Dongfeng Commercial Vehicle Co., Ltd., a joint venture between Dongfeng Motor Group Co., Ltd. and the Swedish Volvo Group, will formally operate in Shiyan today (January 26). Dongfeng holds 55% of the shares and Volvo takes 45%.

　

Dongfeng Motor’s General Manager and Chairman of Dongfeng Commercial Vehicle Co., Ltd. Zhu Fushou delivered speeches


Dongfeng Motor Group and Volvo Group signed a strategic agreement in Beijing on January 26, 2013, announcing the formal joint venture of Dongfeng Commercial Vehicles. From a time perspective, the two-year approval process can be described as smooth. Today is precisely the second anniversary of the signing of the strategic agreement between Dongfeng Motor Group and Volvo Group, which means that the Dongfeng Commercial Vehicle joint venture project lasting for two years has finally reached an official status.

Huang Gang, General Manager of Dongfeng Commercial Vehicle Co., Ltd. spoke


It is understood that according to the contents of the previous two-party agreement, the management structure, the new company's board of directors consists of seven directors, of whom four were appointed by Dongfeng, the other three were appointed by Volvo and the chairman was appointed by Dongfeng.

Dongfeng Commercial Vehicle Co., Ltd. manufactures an engine plant in addition to the traditional four major process blocks for assembly, welding, painting and stamping. Future products include medium- and heavy-duty trucks and chassis, large and medium-sized passenger cars and chassis, special vehicles (including construction vehicles), engines, gearboxes and other key components, as well as technical consulting, technical services, and after-sales services related to the joint venture's operating projects. .

Chairman of Dongfeng Motor Corporation Xu Ping delivered a speech


In terms of technology upgrades and product planning, the vehicle products will use Dongfeng and Volvo's technology and expertise to retrofit and upgrade medium- and heavy-duty commercial vehicle product platforms, develop new models, and build a modular and standardized product platform. It will jointly develop Dongfeng brand heavy-duty engines that meet the national six emission standards and later higher standards. The Dongfeng brand heavy-duty transmission and medium-sized transmission will be introduced and developed.

High-level photo


In addition, Dongfeng Motor Group and Volvo Group will further reorganize the original Dongfeng Nissan Diesel in Hangzhou, and the renamed Dongwo (Hangzhou) Truck Co., Ltd. has officially launched a new product, Coolo, in late 2013. The company will be affiliated with Dongfeng Commercial Vehicle Co., Ltd.

A Solenoid Valve is an electromechanically operated valve. The valve is controlled by an electric current through a solenoid: in the case of a two-port valve the flow is switched on or off; in the case of a three-port valve, the outflow is switched between the two outlet ports. Multiple solenoid valves can be placed together on a manifold.

Solenoid valves are the most frequently used control elements in fluidics. Their tasks are to shut off, release, dose, distribute or mix fluids. They are found in many application areas. Solenoids offer fast and safe switching, high reliability, long service life, good medium compatibility of the materials used, low control power and compact design.

Besides the plunger-type actuator which is used most frequently, pivoted-armature actuators and rocker actuators are also used.


Solenoid valve designs have many variations and challenges.

Common components of a solenoid valve:

  • Solenoid subassembly
    • Retaining clip (a.k.a. coil clip)
    • Solenoid Valve Timer
    • Solenoid Coil (with magnetic return path)
    • Core tube (a.k.a. armature tube, plunger tube, solenoid valve tube, sleeve, guide assembly)
    • Plugnut (a.k.a. fixed core)
    • Shading coil (a.k.a. shading ring)
    • Core spring (a.k.a. counter spring)
    • Core (a.k.a. plunger, armature)
  • Core tube–bonnet seal
  • Bonnet (a.k.a. cover)
  • Bonnet–diaphram–body seal
  • Hanger spring
  • Backup washer
  • Diaphram
    • Bleed hole
  • Disk
  • Valve body
    • Seat
    • air valve
    • water inlet valve
    • control valve

The core or plunger is the magnetic component that moves when the solenoid is energized. The core is coaxial with the solenoid. The core's movement will make or break the seals that control the movement of the fluid. When the coil is not energized, springs will hold the core in its normal position.

The plugnut is also coaxial.

The core tube contains and guides the core. It also retains the plugnut and may seal the fluid. To optimize the movement of the core, the core tube needs to be nonmagnetic. If the core tube were magnetic, then it would offer a shunt path for the field lines. In some designs, the core tube is an enclosed metal shell produced by deep drawing. Such a design simplifies the sealing problems because the fluid cannot escape from the enclosure, but the design also increases the magnetic path resistance because the magnetic path must traverse the thickness of the core tube twice: once near the plugnut and once near the core. In some other designs, the core tube is not closed but rather an open tube that slips over one end of the plugnut. To retain the plugnut, the tube might be crimped to the plugnut. An O-ring seal between the tube and the plugnut will prevent the fluid from escaping.

The solenoid coil consists of many turns of copper wire that surround the core tube and induce the movement of the core. The coil is often encapsulated in epoxy. The coil also has an iron frame that provides a low magnetic path resistance.


Solenoid Valve

Electromagnetic Valve, Pneumatic Component, Pneumatic Solenoid Valve, Air Compressor Valve,Solenoid Valve Timer

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