公开(公告)号：WO1987004493A1

公开(公告)日：1987-07-30

申请号：PCT/GB1987000026

申请日：1987-01-16

Applicant: REES, John, Anthony, Jenes

IPC: F02B41/10

CPC classification number: F02B41/10 ,  F01N5/02 ,  F02B3/06 ,  F02B19/10 ,  F02B37/00 ,  Y02T10/125 ,  Y02T10/144 ,  Y02T10/163

Abstract: An operating cycle for a turbocompounded 2-stroke piston engine comprises a compression stroke, shown as B-A-G on the indicator diagram and an expansion stroke G-K-L-B. The expansion stroke expands the combustion gases to a pressure PB which is lower than the turbocharging pressure PA, scavenging of the combustion gases from the piston engine being facilitated by purging the piston engine with turbocharging air during an early part B-A of each compression stroke B-A-G. This causes the compression ratio RA of the piston engine to be substantially less (preferably, about half) of its expansion ratio RB. Among other advantages, the cycle enables better scavenging of combustion products from the cylinders, and enables the piston engine to be better matched to the associated turbine/turbocompressor set, which may be a gas turbine engine.

Abstract translation: 涡轮组合二冲程活塞发动机的运行循环包括压力冲程，指示器图上显示为B-A-G，膨胀冲程G-K-L-B。 膨胀行程将燃烧气体膨胀到低于涡轮增压压力PA的压力PB，通过在每个压缩冲程B-A-G的早期部分B-A期间通过用涡轮增压空气吹扫活塞发动机来促进来自活塞发动机的燃烧气体的清除。 这使得活塞发动机的压缩比RA大大地比其膨胀比RB更小（优选地大约一半）。 除了其他优点之外，该循环还能够更好地清除来自气缸的燃烧产物，并且使活塞发动机更好地与可以是燃气涡轮发动机的相关联的涡轮/涡轮压缩机组匹配。

公开(公告)号：WO1987004494A1

公开(公告)日：1987-07-30

申请号：PCT/GB1987000027

申请日：1987-01-16

Applicant: REES, John, Anthony, Jenes

IPC: F02B41/10

CPC classification number: F02B41/10 ,  F01N5/02 ,  F02B3/06 ,  F02B19/10 ,  F02B37/00 ,  Y02T10/125 ,  Y02T10/144 ,  Y02T10/163

Abstract: A compound engine comprises a positive displacement engine (100), such as a reciprocating or rotary piston diesel engine, which is linked to a turbine/turbocompressor set in the form of a gas turbine engine (102) with a free power turbine (138). The exhaust gases of the positive displacement engine pass through a duct (122) to the combustor (116) of the gas turbine engine to help drive its turbine (134), which drives the turbocompressor (106), when in turn turbocharges the positive displacement engine (100) through a duct (108). The turbocharging air duct (108) includes a valve (109) for selectively preventing delivery of turbocharging air to the positive displacement engine (100) so that the gas turbine engine can be operated while the positive displacement engine is shut down. In order to assure good scavenging of spent combustion products from the positive displacement engine (100) and a good match between the compression and expansion characteristics of the gas turbine engine (102) and the positive displacement engine, the turbocharging air duct (108) delivers the turbocharging air to the positive displacement engine at a first, higher, pressure and the combustion gas exhaust duct (122) exhausts the combustion gas to the combustor (116) at a second, lower pressure. Methods of operating the compound engine are also disclosed.

Abstract translation: 复合发动机包括与具有自由动力涡轮机（138）的燃气涡轮发动机（102）形式的涡轮/涡轮压缩机连接的正排量发动机（100），例如往复式或旋转活塞柴油发动机， 。 正排量发动机的废气通过燃气涡轮发动机的燃烧器（116）的管道（122），以帮助驱动其驱动涡轮压缩机（106）的涡轮机（134），同时涡轮增压器 发动机（100）通过管道（108）。 涡轮增压空气管道（108）包括用于选择性地防止向正排量发动机（100）输送涡轮增压空气的阀门（109），使得燃气涡轮发动机可以在正排量发动机关闭时操作。 为了确保来自正排量发动机（100）的废燃烧产物的良好清除和燃气涡轮发动机（102）和正排量发动机的压缩和膨胀特性之间的良好匹配，涡轮增压空气管道（108）输送 在第一较高压力下的正排量发动机的涡轮增压空气和燃烧气体排放管道（122）在第二较低压力下将燃烧气体排放到燃烧器（116）。 还公开了操作复合发动机的方法。

公开(公告)号：WO1987004492A1

公开(公告)日：1987-07-30

申请号：PCT/GB1987000024

申请日：1987-01-16

Applicant: REES, John, Anthony, Jenes

IPC: F02B41/10

CPC classification number: F02B41/10 ,  F01N5/02 ,  F02B3/06 ,  F02B19/10 ,  F02B37/00 ,  Y02T10/125 ,  Y02T10/144 ,  Y02T10/163

Abstract: A prime mover comprises a positive displacement engine (100), such as a reciprocating or rotary piston engine, which is linked to a turbine/turbocompressor set, such as the gas turbine engine (102). The exhaust gases of the positive displacement engine pass through a duct (122) to drive the turbine (134), which drives the turbocompressor (106), which in turn turbocharges the positive displacement engine (100) through a duct (108). Disclosed are efficient overall operating cycles for such prime movers, advantangeous adaptations of prime movers capable of performing such operating cycles, and operating cycles for the positive displacement engine (100) which enable it to contribute most effectively to the efficiency of the overall operating cycles.

Abstract translation: 原动机包括与诸如燃气涡轮发动机（102）的涡轮/涡轮压缩机组连接的正排量发动机（100），例如往复式或旋转活塞式发动机。 正排量发动机的废气通过管道（122）以驱动涡轮机（134），涡轮机（134）驱动涡轮压缩机（106），涡轮压缩机（106）又通过管道（108）对正排量发动机（100）进行涡轮增压。 公开了用于这种原动机的有效总体操作周期，能够执行这种操作循环的原动机的有利调整以及用于正排量发动机（100）的操作循环，使得其能够最有效地贡献整个操作循环的效率。

公开(公告)号：WO1987004491A1

公开(公告)日：1987-07-30

申请号：PCT/GB1987000025

申请日：1987-01-16

Applicant: REES, John, Anthony, Jenes

IPC: F02B37/00

CPC classification number: F02B41/10 ,  F01N5/02 ,  F02B3/06 ,  F02B19/10 ,  F02B37/00 ,  Y02T10/125 ,  Y02T10/144 ,  Y02T10/163

Abstract: The cylinder head (401) of a turbocompounded 2-stroke piston engine incorporates, for each cylinder (400), an indirect combustion chamber (402), which is connected to the cylinder clearance volume (413) by a passage (412). The indirect combustion chamber (402) incorporates the inlet valve (408) so that when the valve opens, turbocharging air flows into the cylinder through the chamber (402) and the passage (412). This allows a large proportion of the cylinder head area to be devoted to the exhaust valves (410), with advantages in good scavenging and maximising mass flow rates through the cylinder.

Abstract translation: 涡轮混合二冲程活塞式发动机的气缸盖（401）对于每个气缸（400）并入有通过通道（412）连接到气缸间隙容积（413）的间接燃烧室（402）。 间接燃烧室（402）包括入口阀（408），使得当阀打开时，涡轮增压空气通过室（402）和通道（412）流入气缸。 这允许气缸盖面积的大部分被用于排气门（410），具有良好的清除和最大化通过气缸的质量流量的优点。