公开(公告)号：US4255097A

公开(公告)日：1981-03-10

申请号：US62356

申请日：1979-07-31

申请人： Charles W. Davis ,  Charles J. Donahue

发明人： Charles W. Davis ,  Charles J. Donahue

IPC分类号： F02M41/14 ,  F04B1/10 ,  F04B1/107 ,  F04B1/113 ,  F04B29/00

CPC分类号： F02M41/1405

摘要： This invention relates to fuel injection pumps of the type employed for supplying measured charges of fuel to the nozzles of an associated internal combustion engine. More particularly, the invention relates to such fuel pumps of the rotary distributor type having pumping plungers which are slidably mounted in radial bores of a rotary distributor and are surrounded by a generally circular cam ring having pairs of inwardly directed cam lobes which actuate pairs of pumping plungers inwardly simultaneously for pressurizing the charge of fuel between the plungers to a high pressure.The subject invention overcomes the above problems by angularly spacing a pair of pumping plungers and the cooperating cam lobes as required for the specific engine application and avoids the undesired side loading by creating a hydraulic counterbalancing force which automatically changes as the side loading created by the reaction forces between the cam lobes and the pumping plungers changes with speed and rate of delivery of fuel. This is accomplished without introducing any added moving parts to the pump.

摘要翻译： 本发明涉及用于将相关内燃机的喷嘴的测量的燃料量提供给燃料喷射泵。 更具体地说，本发明涉及这样的旋转分配器类型的燃料泵，其具有可滑动地安装在旋转分配器的径向孔中的泵送柱塞，并且由具有成对的向内指向的凸轮凸角的大致圆形的凸轮环围绕， 同时向内活塞，以将柱塞之间的燃料加压加压至高压。 本发明克服了上述问题，通过按照特定发动机应用的需要角度地间隔一对泵送柱塞和配合的凸轮凸角，并通过产生液压平衡力避免不需要的侧向负载，该液压平衡力随反应产生的侧向载荷而自动变化 凸轮凸角和抽吸柱塞之间的力随着燃料的输送速度和速度而变化。 这是在没有向泵中引入任何添加的运动部件的情况下完成的

公开(公告)号：US4225291A

公开(公告)日：1980-09-30

申请号：US859847

申请日：1977-12-12

申请人： Gerald R. Bouwkamp ,  Charles W. Davis ,  Wesley B. Gilbert ,  Charles J. Donahue

发明人： Gerald R. Bouwkamp ,  Charles W. Davis ,  Wesley B. Gilbert ,  Charles J. Donahue

IPC分类号： F02D1/02 ,  F02M41/14 ,  F04B29/00 ,  F04B19/02

CPC分类号： F02M41/1411

摘要： Designs for variably controlling the maximum quantity of fuel which can be delivered by a pumping stroke of pumping plungers are disclosed. These include combinations of resilient and rigid leaf spring arrangements for controlling the maximum pumping stroke with and without speed responsive control valves or cams, to provide excess fuel for starting and for shaping the maximum fuel delivery curve according to speed.

摘要翻译： 公开了用于可变地控制可以通过泵送柱塞的泵送冲程传递的最大量的燃料的设计。 这些包括用于控制具有和不具有速度响应的控制阀或凸轮的最大泵送冲程的弹性和刚性板簧装置的组合，以根据速度提供用于启动和成形最大燃料输送曲线的过量燃料。