公开(公告)号：US4678055A

公开(公告)日：1987-07-07

申请号：US909695

申请日：1986-09-22

Applicant: Toshio Yoshinaka ,  Syuji Nagano

Inventor： Toshio Yoshinaka ,  Syuji Nagano

IPC: B60K23/08 ,  B60K17/346 ,  F16H59/04 ,  F16H61/16 ,  F16H63/00 ,  F16H63/12 ,  F16H63/16 ,  F16H63/18 ,  F16H63/24 ,  F16H63/28 ,  F16H63/30 ,  F16H63/36 ,  F16H63/38 ,  B60K41/26 ,  F16H3/38

CPC classification number: F16H63/24 ,  B60K17/3467 ,  F16H59/04 ,  F16H63/16 ,  F16H63/28 ,  F16H63/30 ,  Y10T74/19926

Abstract: A four-wheel drive system for use in a vehicle includes mechanisms for preventing disengagement of the engagement sleeves of a transfer gear shift mechanism while permitting limited displacement of the engagement sleeves, shift forks and fork shafts to prevent a large amount of friction between grooves in the engagement sleeves and engagement fingers of the shift forks. Disengagement of the engagement sleeves is prevented by formation of chamfers and tapered surfaces on corresponding portions of the engagement sleeves, splines and sprockets. Limited displacement of the engagement sleeves, shift forks and fork shafts is accomplished by means of notches in the fork shafts which are larger than corresponding locking pins, so that the fork shafts, shift forks and engagement sleeves are displaceable within a distance corresponding to the difference in size between the notches and locking pins. The above features prevent disengagement of the engagement sleeves without undue friction and consequent sludge buildup, even when a torque is applied through the transfer gear shift mechanism and thrust forces are exerted on the engagement sleeves.

Abstract translation: 用于车辆的四轮驱动系统包括用于防止接合套筒，换档叉和叉轴有限位移的传动换档机构的接合套筒脱开的机构，以防止槽间的大量摩擦 转移叉的接合套和接合指。 通过在接合套筒，花键和链轮的相应部分上形成倒角和锥形表面来防止接合套筒的脱离。 接合套筒，换档叉和叉轴的有限位移是通过叉轴上大于相应的锁定销的凹口实现的，使得叉轴，换档叉和接合套筒可以在对应于差异的距离内移位 在凹口和锁定销之间的尺寸。 上述特征防止了接合套筒的脱离，而不会产生不必要的摩擦和随之而来的污泥积聚，即使当通过传动换档机构施加扭矩并且推力施加在接合套筒上时。

公开(公告)号：US4036081A

公开(公告)日：1977-07-19

申请号：US590130

申请日：1975-06-25

Applicant: Kiyoshi Onuma ,  Syuji Nagano

Inventor： Kiyoshi Onuma ,  Syuji Nagano

IPC: F16H3/66 ,  F16H47/08 ,  F16H3/04 ,  F16H57/10

CPC classification number: F16H47/085 ,  F16H3/663 ,  F16H2200/2097

Abstract: An overdrive mechanism is provided for use in an automatic transmission of the type including a torque converter and a change gear mechanism. The torque converter has a pump impeller obtaining its input from an engine and a turbine runner whose output is applied to a shaft of the change gear mechanism.The overdrive mechanism is disposed between the torque converter and the change gear mechanism and is responsive to the operation of the change gear mechanism. The overdrive mechanism includes a planetary gear train having a sun gear fixed stationary, a carrier operatively responsive to the pump impeller of the torque converter, and a ring gear operatively connected to the sun gear and carrier so that it at all times has output power of a rotational speed greater than that of the engine. An overdrive clutch is provided that connects the shaft of the change gear mechanism to the pump impeller of the torque converter through the ring gear and planetary gear train to thereby by-pass the turbine runner of the torque converter.This device provides for fuel efficiency by eliminating fluid turbulence in the torque converter during this overdrive condition.

Abstract translation: 提供了一种用于包括变矩器和变速机构的类型的自动变速器中的过驱动机构。 变矩器具有泵叶轮，其获得其来自发动机的输入和涡轮转轮，其输出被施加到变速齿轮机构的轴。