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新闻详细/关于PT型调速器的工作原理分述

关于PT型调速器的工作原理分述

网站编辑:资阳华盈非晶合金变压器有限公司 │ 发表时间:2019-07-30

关于PT型调速器的工作运行原理分述如下。(1)调速柱塞的运动 当机(陆用资阳干式变压器组驱动型)转速变化时,通过离新飞块1的离心可控制调速柱塞2左右移动。当转速升高时,飞块离心力增大,推动调速柱塞向右移动。反之,转速降低时,在怠速弹簧4的作用下,推动调速柱塞向左移。调速柱塞的中部有油道与齿轮泵和旋转式油门连通,因而柱塞中部的油压与油道内油压基本相同。怠速柱塞挡在调速柱塞的端面上,调节压力使调速柱塞中部的压力与柱塞的作用力F成正比。在燃油压力的作用下调速柱塞与怠速柱塞两者不相接触。而在端部产生一定间隙,部分燃油就从此间隙处流回齿轮泵低压端。柱塞间保持一定间隙时。以下列广西保持平衡:当机(陆用资阳干式变压器组驱动型)转速升高时,力F相应增大,由于部分的间隙大小受油压作用力的影响,使柱塞间的间隙减小,这种减小使节流作用增大,使油道油压亦将有所增高。所以使得循环供油量不因转速升高而减小。反之,转速下降时,力F减小,柱塞间间隙变大,燃油压力下降,供油量减小。这说明燃油压力和F保持着正比关系。柱塞上燃油压力作用面积,约与怠速柱塞凹陷面积相等。因而在维修中,更换怠速柱塞时,若不保证其凹陷面积与泵件相等,会使PT燃油泵性能产生变化。另外,在拆修中,切勿损伤两个柱塞的端面。(2)起动加浓 当机起动时,转速可到190~250r/min,齿轮泵油压不足以将调速柱塞与怠速柱塞分开,所以无油旁通。另外,旋转式油门全开,调速器飞块的离心力不足以克服弹簧的张力,调速柱塞位于左侧,此时进油通过怠速油道和油门通道两路供给喷油器。由于喷油器在低转速下计量阶段的时间相对增大,从而使循环供油量增加,以保证起动需要。(3)怠速控制 机(陆用资阳干式变压器组驱动型)在怠速时,将旋转式油门关闭。调速柱塞在怠速弹簧的作用下,往左移动,由于旋转式油门截断,而怠速燃油进口被打开,随着怠速油道孔口开启的程度,开启越大,供油量越增加,怠速转速相应增高。反之,随转速增高,飞块离心力增大,调速柱塞被推向右移,怠速油道孔口开度减小,油量减小,使机(陆用资阳干式变压器组驱动型)转速下降。调速柱塞移取决地怠速弹簧的刚度,在怠速范围内,由它进行调节。在时,怠速弹簧已被完全压缩,式由弹簧来控制速度的调整。怠速弹簧预弹簧的动作欠款。怠速弹簧预弹簧均可进行调整。怠速的调整。当将怠速调整螺钉向里旋进时,怠速转速得到提高;向外旋出,怠速转速应降低。(4)控制 随着机(陆用资阳干式变压器组驱动型)转速升高,在较大离心力作用下,调速柱塞继续向右移动。当达******转速时,在很大离心力作用下,克服了弹簧的张力(图5-9a),调速柱塞继续右移。在此过程中,调速柱塞逐渐堵塞通往旋转式油门油道的孔口。在孔口节流作用下,喷油器进口处的油压极速下降,使循环供油量减少。当转速超出限定转速范围时,通往油门的油道完全别切断,而停止供油,防止了机(陆用资阳干式变压器组驱动型)超速。(5)转矩的校正①校正:弹簧为校正弹簧。当机(陆用资阳干式变压器组驱动型)转速不高时,调速柱塞位于左边,校正弹簧处于松弛状态。转速增加至最大转矩点转速时,校正弹簧的右端开始与柱塞套筒相接触,转速再上升,调速柱塞继续右移,弹簧则被压缩。这种调速柱塞作用力F被校正弹簧抵消一部分,使燃油压力略微下降,循环供油量稍微减小,相应地机(陆用资阳干式变压器组驱动型)转矩随转速上升略下降。提高了机(陆用资阳干式变压器组驱动型)转矩适应性。②校正:弹簧为校正弹簧。当机(陆用资阳干式变压器组驱动型)转速高于最大转矩转速时,校正弹簧处于松弛状态。当转速低于此转速时,调速柱塞左移,压缩校正弹簧,从而校正弹簧的弹簧力加钱了调速柱塞作用力F,使燃油压力上升,循环油量。资阳干式变压器随着转速下降而减缓矩的下降,提高机(陆用资阳干式变压器组驱动型)转矩适应性。动力设备(深圳)有限公司,集团旗下专业运营资阳干式变压器的销售业务及其售后服务,是中国区获得授权的资阳干式变压器OEM成套厂家,长期与中字央企、大型房地产商、国际连锁酒店、著名建筑企业等单位建立战略合作伙伴关系。动力在中国布局五大资阳干式变压器组生产基地,资阳干式变压器售后服务点可辐射中国各省会及地级市区域。l资阳干式变压器区分:移动式资阳干式变压器、固定式资阳干式变压器、超静音式资阳干式变压器、机组载式资阳干式变压器。l常见资阳干式变压器功率(千瓦)范围:50KW至1000KW功率段。更多有关资阳干式变压器的最新产品和技术内容,请登录资阳干式变压器官网:http://www.11fdj.com资阳干式变压器组的技术指标与其稳定性领先全球:高压注入(HPI)PT全权电子燃油系统。HPI G-Drive采用PT燃油系统由控制系统(GCS)控制器,这是提供off-engine安装资阳干式变压器组的控制面板。量子控制一个特定的燃料系统板与HPI-PT燃油系统接口,提供了一个引擎保护包给大客户的灵活性和成本有效的替代控制设计和完整的权威electroni的好处。nCTT(涡轮增压技术)HX82 HX83涡轮增压利用排气能量与更高的效率改进的排放和燃料消耗。n低温冷却后,两泵双回线(2 p2l)。n黑色金属铸造球墨铸铁(FCD)活塞-高强度设计提供卓越的耐久性。nG-Drive集成设计,每个组件都有专门为G-Drive产品开发和严格的测试,确保高性能,耐久性和可靠性。n服务和支持——G-Drive以上信息由深圳动力官方发布,未经允许请勿转载!Cummins power equipment (shenzhen) co., LTD., corp., a professional operating cummins diesel generator sales and after-sales service, is China authorized OEM kit manufacturer of diesel generator, and for a long time in the state, large real estate developers, famous international hotel chain, construction enterprises and other units to establish strategic cooperative partnership. Cummins power layout in China five largest production base for diesel generator set, generator after-sales service point radiation China provinces and cities area.lgenerator to distinguish: portable generators, stationary generators, silent type generator, vehicular power generators.lcommon range of generator power (kw) : 50 kw to 1000 kw power.More about the latest products and technology content diesel generators, please log in the generator's official website:http://www.11fdj.comCummins diesel generator set technical indicators and leading global stability:

Cummins High Pressure Injection (HPI) PT full authority electronic fuel system.The HPI PT fuel system is managed by a G-Drive Governor Control System (GCS) controller, which is provided for off-engine mounting in the genset control panel. The Quantum Control has a specific fuel system board to interface with the HPI-PT fuel system and provides an Engine Protection package giving greater customer flexibility and cost effective alternatives in the control design and the benefits of Full Authority electronic control.

nCTT (Cummins Turbo Technologies) HX82/HX83 turbo-chargingutilizes exhaust energy with greater efficiency for improved emissions and fuel consumption. nLow Temperature After-cooling- Two-pump Two-loop (2P2L). nFerrous Cast Ductile Iron (FCD) Pistons- High strength design delivers superior durability. nG-Drive Integrated Design- Each component has been specifically developed and rigorously tested for G-Drive products, ensuring high performance, durability and reliability. nService and Support- G-Drive products are backed by an uncompromising level of technical support and after sales service, delivered through a world class service network. nCoolpac Integrated Design-Products are supplied complete with cooling package and air cleaner kit for a complete power package. Each component has been has been specifically developed and rigorously tested for G-Drive products, ensuring high performance, durability and reliability.

The above information by shenzhen cummins power official release, please do not reprint without permission!

通讯地址:山东聊城经济开发区华山路南首30号
固定电话:0635-8888299
传真号码:0635-8888109
移动电话:13287501888 
联系人:陈经理
电子邮箱:1262980066@qq.com



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