公开(公告)号：WO1983001483A1

公开(公告)日：1983-04-28

申请号：PCT/US1982001467

申请日：1982-10-12

Applicant: INVESTMENT RARITIES, INCORPORATED

Inventor： INVESTMENT RARITIES, INCORPORATED ,  BURANDT, Corliss, O.

IPC: F01L01/18

CPC classification number: F01L1/185 ,  F01L13/0063 ,  F02B2075/028

Abstract: The variable valve operating mechanism (48) comprises lower and upper rocker arms (76a, 76b), each having a straight section (82) and a curved cam section (84). The lower rocker arm (76a) is mounted for pivotal movement about a fixed axis (70) and the upper rocker arm is mounted for pivotal movement about a shiftable axis (138). The free end (80) of the lower rocker arm (76a) engages the valve (24) to be actuated and the free end (80) of the upper rocker arm (76b) engages the straight section (82) of the first rocker arm (76a) when the shiftable axis (138) is spaced relatively far from the fixed axis (70). When the shiftable axis (138) is moved toward the fixed the axis (70), the valve (24) lift starts to increase. Continued movement, however, causes the engine's cam (40) to engage the curved cam section (84) of the upper rocker arm (76b) to lengthen the duration or time that the valve (24) is open. In this way, valve lift and the duration of time that the valve (24) remains open can be controlled in accordance with certain engine operating conditions. Provisions is made for lubricating parts of the mechanism and provision is also made for adjusting certain parts of the mechanism so as to provide a specified amount of valve lash.

Abstract translation: 可变气门操作机构（48）包括下和上摇臂（76a，76b），每个具有直的部分（82）和弯曲的凸轮部分（84）。 下摇臂（76a）安装成围绕固定轴线（70）枢转运动，并且上摇臂被安装成围绕可移动轴线（138）枢转运动。 下摇臂（76a）的自由端（80）接合阀（24）以被致动，并且上摇臂（76b）的自由端（80）接合第一摇臂的直线部分（82） 当所述可移动轴线（138）与所述固定轴线（70）间隔得相对较远时，所述支撑件（76a）。 当可移动轴线（138）朝着固定轴线（70）移动时，阀门（24）升降开始增加。 然而，继续运动使得发动机的凸轮（40）接合上摇臂（76b）的弯曲凸轮部分（84）以延长阀（24）打开的持续时间或时间。 以这种方式，阀门升程和阀门（24）保持打开的持续时间可以根据某些发动机操作条件来控制。 规定了机构的润滑部件，并且还提供了调节机构的某些部件以便提供规定量的阀门间隙。

公开(公告)号：WO1983001484A1

公开(公告)日：1983-04-28

申请号：PCT/US1982001468

申请日：1982-10-12

Applicant: INVESTMENT RARITIES, INCORPORATED

Inventor： INVESTMENT RARITIES, INCORPORATED ,  BURANDT, Corliss, O.

IPC: F01L01/18

CPC classification number: F02B75/02 ,  F01L1/12 ,  F01L13/0063 ,  F02B2075/028

Abstract: A rotatable cam (94) and pivotally mounted rocker arm (80) are employed for each valve (36) of an internal combustion engine. The rocker arm (80) has a working or cam follower surface (86) thereon which includes a straight section (88) and a curved section (90). By relatively moving the cam (94) and rocker arm (80) so that the cam (94) acts against appropriate portions of the cam follower surface (86), the moment of valve opening and closing is controlled, as well as the lift and duration of valve opening. The invetion makes possible what is herein termed a five-cycle operation in that the following sequence can be achieved: (1) intake, (2) decompression, (3) compression, (4) power, and (5) exhaust.

Abstract translation: 对于内燃机的每个阀（36）采用旋转凸轮（94）和可枢转地安装的摇臂（80）。 摇臂（80）在其上具有工作或凸轮随动体表面（86），其包括直线部分（88）和弯曲部分（90）。 通过相对地移动凸轮（94）和摇臂（80）使得凸轮（94）作用在凸轮从动件表面（86）的适当部分上，控制阀打开和关闭的时刻以及升降 开阀持续时间 这种入侵使得这里所谓的五循环操作成为可能，可以实现以下顺序：（1）进气，（2）减压，（3）压缩，（4）功率和（5）排气。

公开(公告)号：WO1983004070A1

公开(公告)日：1983-11-24

申请号：PCT/US1983000744

申请日：1983-05-13

Applicant: INVESTMENT RARITIES, INCORPORATED

Inventor： INVESTMENT RARITIES, INCORPORATED ,  BURANDT, Corliss, O.

IPC: F01L01/34

CPC classification number: F01L13/0036 ,  F01L13/0063

Abstract: In a specific embodiment a cam unit (42) comprised of three differently profiled cams (46, 48, 50) acts on follower portions or working surfaces (78, 80, 82) on a shiftable first rocker arm (72) to cause a second rocker arm (62) to open and close a valve (22) associated with the combustion chamber or cylinder (14) of an internal combustion engine (10) in accordance with the cam profiles and the contours of the follower surfaces (78, 80, 82) to AD1 BD maintain the valve (22) completely closed, such as during deceleration of the engine (10), AD2 BD vary the duration of the valve (22) and produce a lesser lift of the valve (22) to effect an engine throttling mode of operation, and AD3 BD vary the duration of the valve (22) and produce a greater lift of the valve (22) for a higher performance of the engine (10).