Dual compression and dual expansion internal combustion engine
    2.
    发明公开
    Dual compression and dual expansion internal combustion engine 失效
    双压缩和双膨胀内燃机

    公开(公告)号:EP0756067A2

    公开(公告)日:1997-01-29

    申请号:EP96116228.6

    申请日:1991-04-01

    申请人: CATERPILLAR INC.

    IPC分类号: F01B7/20 F02B75/02

    摘要: An apparatus and method is provided for a dual compression and dual expansion internal combustion engine that is compact, efficient, and has low combustion noise and emissions. The subject engine includes a low pressure piston assembly reciprocally disposed in an operating chamber defined in a housing. A pair of opposed high pressure piston assemblies are directly mounted on a pair of geared together, counter rotating, crankshafts and reciprocally disposed in bores of the low pressure piston assembly. The disposition of the second and third piston assemblies within their respective bores defines a combustion chamber. An intake chamber for compression of inducted air and an exhaust chamber for expansion of exhaust gas are defined in the operating chamber between the low pressure piston assembly and the housing. Air moves from the intake chamber to the exhaust chamber, but in the process the air compressed, mixed with fuel, and combusted. The resulting gas is expanded in the combustion space between the high pressure piston assemblies. A complete cycle from start of air entry into the intake chamber to the exit of the exhaust gas of the same charge from the exhaust chamber takes approximately 900 degrees of rotation of the crankshafts during which the intake chamber, the combustion chamber, and the exhaust chamber each undergoes five "strokes". Thus, the disclosed engine is compact, efficient, and has less combustion noise, and low emissions.

    摘要翻译: 提供了一种紧凑,高效且具有低燃烧噪音和排放的双压缩双膨胀内燃机的设备和方法。 本发明的发动机包括一个低压活塞组件,它往复地设置在壳体内限定的操作室中。 一对相对的高压活塞组件直接安装在一对齿轮传动的,反向旋转的曲轴上并且可往复运动地设置在低压活塞组件的孔中。 第二和第三活塞组件在它们各自的孔内的设置限定了燃烧室。 在低压活塞组件和壳体之间的操作室中限定用于压缩引入空气的进气室和用于膨胀排气的排气室。 空气从进气室移向排气室,但在此过程中,空气被压缩,与燃料混合并燃烧。 所得到的气体在高压活塞组件之间的燃烧空间中膨胀。 从空气开始进入进气室到从排气室排出相同进气的排气的完整循环需要约900度的曲轴旋转,在此期间进气室,燃烧室和排气室 每个经历五个“笔画”。 因此,所公开的发动机紧凑,高效并且具有较少的燃烧噪音和较低的排放。

    Dual compression and dual expansion internal combustion engine
    3.
    发明公开
    Dual compression and dual expansion internal combustion engine 失效
    具有双压缩和双膨胀内燃机

    公开(公告)号:EP0892162A3

    公开(公告)日:1999-08-04

    申请号:EP98119735.3

    申请日:1991-04-01

    申请人: CATERPILLAR INC.

    IPC分类号: F02B75/30

    摘要: An apparatus and method is provided for a dual compression and dual expansion internal combustion engine that is compact, efficient, and has low combustion noise and emissions. The subject engine includes a low pressure piston assembly reciprocally disposed in an operating chamber defined in a housing. A pair of opposed high pressure piston assemblies are directly mounted on a pair of geared together, counter rotating, crankshafts and reciprocally disposed in bores of the low pressure piston assembly. The disposition of the second and third piston assemblies within their respective bores defines a combustion chamber. An intake chamber for compression of inducted air and an exhaust chamber for expansion of exhaust gas are defined in the operating chamber between the low pressure piston assembly and the housing. Air moves from the intake chamber to the exhaust chamber, but in the process the air compressed, mixed with fuel, and combusted. The resulting gas is expanded in the combustion space between the high pressure piston assemblies. A complete cycle from start of air entry into the intake chamber to the exit of the exhaust gas of the same charge from the exhaust chamber takes approximately 900 degrees of rotation of the crankshafts during which the intake chamber, the combustion chamber, and the exhaust chamber each undergoes five "strokes". Thus, the disclosed engine is compact, efficient, and has less combustion noise, and low emissions.

    Dual compression and dual expansion internal combustion engine
    5.
    发明公开
    Dual compression and dual expansion internal combustion engine 失效
    具有双压缩和双膨胀内燃机

    公开(公告)号:EP0756067A3

    公开(公告)日:1997-04-02

    申请号:EP96116228.6

    申请日:1991-04-01

    申请人: CATERPILLAR INC.

    IPC分类号: F01B7/20 F02B75/02

    摘要: An apparatus and method is provided for a dual compression and dual expansion internal combustion engine that is compact, efficient, and has low combustion noise and emissions. The subject engine includes a low pressure piston assembly reciprocally disposed in an operating chamber defined in a housing. A pair of opposed high pressure piston assemblies are directly mounted on a pair of geared together, counter rotating, crankshafts and reciprocally disposed in bores of the low pressure piston assembly. The disposition of the second and third piston assemblies within their respective bores defines a combustion chamber. An intake chamber for compression of inducted air and an exhaust chamber for expansion of exhaust gas are defined in the operating chamber between the low pressure piston assembly and the housing. Air moves from the intake chamber to the exhaust chamber, but in the process the air compressed, mixed with fuel, and combusted. The resulting gas is expanded in the combustion space between the high pressure piston assemblies. A complete cycle from start of air entry into the intake chamber to the exit of the exhaust gas of the same charge from the exhaust chamber takes approximately 900 degrees of rotation of the crankshafts during which the intake chamber, the combustion chamber, and the exhaust chamber each undergoes five "strokes". Thus, the disclosed engine is compact, efficient, and has less combustion noise, and low emissions.

    Dual compression and dual expansion internal combustion engine and method therefor
    6.
    发明公开
    Dual compression and dual expansion internal combustion engine and method therefor 失效
    发动机采用双压缩和膨胀和操作程序。

    公开(公告)号:EP0593089A1

    公开(公告)日:1994-04-20

    申请号:EP93118124.2

    申请日:1991-04-01

    申请人: CATERPILLAR INC.

    IPC分类号: F02M57/00 F02M61/14

    摘要: Disclosed is a fuel injection system (455) for injecting fuel into a combustion space (254) defined is a piston assembly (56) reciprocally disposed an operating chamber (22) defined in a housing (10) of an engine (8). A fuel injector nozzle assembly (528) is mounted on the piston assembly (56) and extends into the combustion space (254), and fuel injector means (458) including a control member (464) connected fro movement with the piston assembly (56) for controllably delivering fuel under pressure to the fuel injector nozzle assembly (528) in response to the reciprocation of the piston assembly (56) is also provided.

    摘要翻译: 公开了一种燃料喷射系统(455),用于将燃料喷射到限定的燃烧空间(254)在发动机的壳体(10)限定的活塞组件(56)在操作腔(22)往复运动地布置(8)。 一种燃料喷射器喷嘴组合件(528)安装在所述活塞组件(56)和延伸到所述燃烧空间(254),并且燃料喷射器装置(458),包括连接来回与所述活塞组件运动的控制构件(464)(56 ),用于响应压力下可控地将燃料输送到燃料喷射器喷嘴组合件(528)到所述活塞组件(56)的往复运动因此提供。

    Dual compression and dual expansion internal combustion engine
    8.
    发明公开
    Dual compression and dual expansion internal combustion engine 失效
    具有双压缩和双膨胀内燃机

    公开(公告)号:EP0892162A2

    公开(公告)日:1999-01-20

    申请号:EP98119735.3

    申请日:1991-04-01

    申请人: CATERPILLAR INC.

    IPC分类号: F02B75/30

    摘要: An apparatus and method is provided for a dual compression and dual expansion internal combustion engine that is compact, efficient, and has low combustion noise and emissions. The subject engine includes a low pressure piston assembly reciprocally disposed in an operating chamber defined in a housing. A pair of opposed high pressure piston assemblies are directly mounted on a pair of geared together, counter rotating, crankshafts and reciprocally disposed in bores of the low pressure piston assembly. The disposition of the second and third piston assemblies within their respective bores defines a combustion chamber. An intake chamber for compression of inducted air and an exhaust chamber for expansion of exhaust gas are defined in the operating chamber between the low pressure piston assembly and the housing. Air moves from the intake chamber to the exhaust chamber, but in the process the air compressed, mixed with fuel, and combusted. The resulting gas is expanded in the combustion space between the high pressure piston assemblies. A complete cycle from start of air entry into the intake chamber to the exit of the exhaust gas of the same charge from the exhaust chamber takes approximately 900 degrees of rotation of the crankshafts during which the intake chamber, the combustion chamber, and the exhaust chamber each undergoes five "strokes". Thus, the disclosed engine is compact, efficient, and has less combustion noise, and low emissions.

    Dual compression and dual expansion internal combustion engine and method therefor
    9.
    发明公开
    Dual compression and dual expansion internal combustion engine and method therefor 失效
    具有双压缩和双膨胀和操作方法内燃机。

    公开(公告)号:EP0593090A1

    公开(公告)日:1994-04-20

    申请号:EP93118125.9

    申请日:1991-04-01

    申请人: CATERPILLAR INC.

    IPC分类号: F01L11/02 F02B25/08

    摘要: Disclosed is a valve operating mechanism (356) for an engine (8) having a housing (10) defining an operating chamber (22), and a piston assembly (56) including a body (110) reciprocally disposed in the operating chamber (22). The body (110) of piston assembly (56) defines a first port (344) and a valve seating surface (352) thereabout. The valve operating mechanism (356) includes a valve (358) including a valve sealing face (370), valve support means (360) for reciprocally supporting the valve (358) on the housing (10) for movement with the piston assembly (52) and valve actuating means (560) for controllably displacing the valve sealing face (370) away from the valve seating surface (352) during a preselected range of movement of the piston assembly (52) in the operating chamber (22).

    摘要翻译: 公开了一种用于在发动机(8),其具有一个壳体中的阀操作机构(356)(10)的操作室(22),和活塞组件(56)包括主体(110)在操作腔室往复运动地布置的 - 定义(22 )。 活塞组件(56)的主体(110)定义的第一端口(344)和阀座面(352)围绕其。 气门传动机构(356)包括:包括用于在壳体(10),用于与所述活塞组件的运动上往复支撑所述阀(358)的阀的密封面(370),阀支撑装置(360)的阀(358)(52 )和阀致动装置(560),用于所述活塞组件(52的运动的预选范围内可控制地移动所述阀密封面(370)从阀座面(352)的距离)(在操作室22中)。