公开(公告)号：US5755191A

公开(公告)日：1998-05-26

申请号：US750332

申请日：1996-11-26

Applicant: Helmut Kottmann

Inventor： Helmut Kottmann

IPC: F02B25/20 ,  F02B33/22 ,  F02B33/44 ,  F02B25/12

CPC classification number: F02B33/22 ,  F02B25/20

Abstract: The invention concerns a two-stroke internal-combustion engine with a charging pump, an outlet channel controlled by the main piston being subjected to additional control by the charging-pump plunger. Circulation losses are minimized and a higher means working pressure is obtained by early mechanical closure of the outlet channel by means of the charging-pump plunger or by injecting a pulse of exhaust gases into the outlet channel in the direction opposite to the direction of flow or by injecting part of the intake charge through the outlet channel into the main cylinder. In addition, the formation of oxides of nitrogen is reduced by controlled exhaust gas retention at the combustion stage. The invention also allows a catalytic converter to be used if required, since an increase in the oxygen concentration owing to circulation losses in the outlet channel is avoided.

Abstract translation: PCT No.PCT / DE95 / 00727 Sec。 371日期1996年11月26日 102（e）日期1996年11月26日PCT提交1995年5月27日PCT公布。 WO95 / 33130 PCT出版物 日期1995年12月7日本发明涉及一种具有充气泵的二冲程内燃机，由主活塞控制的出口通道由充气泵柱塞进行附加控制。 循环损失最小化，并且通过借助于充电泵柱塞的出口通道的早期机械关闭或通过沿与流动方向相反的方向将排气流注入出口通道来获得更高的工作压力，或 通过将出口通道的一部分进气充入到主缸中。 此外，通过在燃烧阶段控制的废气保持来减少氮的氧化物的形成。 如果需要，本发明还允许使用催化转化器，因为避免了由于出口通道中的循环损失导致的氧浓度的增加。

公开(公告)号：US3971355A

公开(公告)日：1976-07-27

申请号：US503133

申请日：1974-09-04

Applicant: Helmut Kottmann

Inventor： Helmut Kottmann

IPC: F16J1/16 ,  F02F3/00 ,  F16J1/18 ,  F02B75/32

CPC classification number: F16J1/18 ,  F02F3/0069 ,  F05C2201/0448 ,  Y10T74/2162

Abstract: A piston has a pair of support members extending away from the piston head offset from a piston ring portion, a piston rod being carried on a connecting rod which is clamped between the support members by a bolt. The bolt is loosely received in a bore in the connecting rod, the force between the piston and the piston rod being taken by a frictional force between the connecting rod and the support members to prevent a bending force being applied to the bolt.

Abstract translation: 活塞具有从活塞环偏离的活塞头延伸的一对支撑构件，活塞杆承载在通过螺栓夹在支撑构件之间的连杆上。 螺栓松动地容纳在连杆的孔中，活塞和活塞杆之间的力被连接杆和支撑构件之间的摩擦力所吸收，以防止弯曲力施加到螺栓上。

公开(公告)号：US4303044A

公开(公告)日：1981-12-01

申请号：US191756

申请日：1980-09-29

Applicant: Helmut Kottmann

Inventor： Helmut Kottmann

IPC: F02B75/02 ,  F02F1/04

CPC classification number: F02F1/045 ,  F02B2075/025 ,  F05C2201/021 ,  Y10S285/902

Abstract: An aluminium 2-stroke engine cylinder and the crank case assembly is provided, in which a cylinder flange rests in sealing manner over its entire area upon a corresponding counter-surface of the crank case and a deformable packing lies between the sealing surfaces and in which the flange is tightened to the crank case by means of screws. The mutually opposite sealing surfaces of flange and crank case are slightly inclined in relation to one another in such a way that the distance between the sealing surfaces is greater radially inwards than radially outwards.

Abstract translation: 提供铝二冲程发动机气缸和曲轴箱组件，其中气缸凸缘在其整个区域上以密封方式安置在曲轴箱的相应对置表面上，并且可变形密封垫位于密封表面之间，并且其中 法兰通过螺丝紧固到曲轴箱上。 凸缘和曲柄箱的相互相对的密封表面相对于彼此略微倾斜，使得密封表面之间的距离比径向向外径向向内更大。