公开(公告)号：US3777984A

公开(公告)日：1973-12-11

申请号：US3777984D

申请日：1972-01-20

Applicant: MACK TRUCKS

Inventor： GREATHOUSE J

IPC: F02M61/20 ,  F02M47/00

CPC classification number: F02M61/20

Abstract: A miniature fuel injection nozzle and holder assembly for internal combustion engines includes a holder body formed with a transverse slot or slots in which two or more parallel compression springs are symmetrically disposed about the axis of the nozzle valve, upon which they act. The springs are insertable into and removable from the holder body through its side by means of the slots. Interchangeable spring guides may be employed to receive adjacent ends of the springs for alignment and transmission of their compressive forces to the nozzle valve. In one embodiment, access for adjustment of the compression of the springs, and thus the valve opening pressure, may be had through the transverse slots.

Abstract translation: 用于内燃机的小型燃料喷射喷嘴和保持器组件包括形成有横向狭槽或狭槽的保持器主体，其中两个或更多个平行的压缩弹簧围绕喷嘴阀的轴线对称地布置在其上。 这些弹簧可以通过槽插入保持器主体中并从其侧面移除。 可以使用可互换的弹簧引导件来接收弹簧的相邻端部，用于将其压缩力对准和传递到喷嘴阀。 在一个实施例中，可以通过横向狭槽进行用于调节弹簧的压缩以及因此阀打开压力的通路。

公开(公告)号：US3786792A

公开(公告)日：1974-01-22

申请号：US3786792D

申请日：1971-05-28

Applicant: MACK TRUCKS

Inventor： PELIZZONI W ,  GIBSON R ,  GREATHOUSE J ,  PEKAR F

IPC: F01L1/24 ,  F01L1/245 ,  F01L13/00 ,  F01L13/04 ,  F01L13/06 ,  F01L13/08 ,  F02D13/04

CPC classification number: F01L1/2422 ,  F01L1/08 ,  F01L1/245 ,  F01L13/0031 ,  F01L13/04 ,  F01L13/06 ,  F01L13/08

Abstract: A system for varying the valve timing of an internal combustion engine to increase the retarding effect of the engine for braking purposes, to increase the compression ratio of a relatively low compression ratio engine to enhance starting, and to optimize breathing to improve the engine performance over the useful operating speed range. The valve timing is varied by changing the total valve train length so as to shift the points on the cam profile at which the valve opening and closing events are determined.

Abstract translation: 一种用于改变内燃机的气门正时以增加用于制动目的的发动机的减速效果的系统，以增加相对较低的压缩比发动机的压缩比以增强启动，并优化呼吸以改善发动机性能 有用的运行速度范围。 通过改变总气门机构长度来改变气门正时，以便确定确定开阀和关闭事件的凸轮轮廓上的点。