Topic
Split cycle engine
About: Split cycle engine is a research topic. Over the lifetime, 60 publications have been published within this topic receiving 676 citations.
Papers published on a yearly basis
Papers
Patent•
21 Nov 2006
TL;DR: In this paper, a split-cycle air hybrid engine is proposed, where a power piston is received within a power cylinder and operatively connected to a crankshaft such that the power piston reciprocates through an expansion stroke and an exhaust stroke during a single revolution of the crankshaft.
Abstract: A split-cycle air hybrid engine operatively connects an air reservoir to a split cycle engine. A power piston is received within a power cylinder and operatively connected to a crankshaft such that the power piston reciprocates through an expansion stroke and an exhaust stroke during a single revolution of the crankshaft. A compression piston is received within a compression cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke in a single rotation of the crankshaft. The compression cylinder is selectively controllable to place the compression piston in a compression mode or an idle mode. An air reservoir is operatively connected between the compression cylinder and the power cylinder and selectively operable to receive compressed air from the compression cylinder and to deliver compressed air to the power cylinder for use in transmitting power to the crankshaft during engine operation.
119 citations
Patent•
14 Jun 2004
TL;DR: The ratio of cylinder volumes from BDC to TDC for either one of the expansion cylinder (104) and compression cylinder (106) is substantially 20 to 1 or greater.
Abstract: An engine (100) has a crankshaft (108), rotating about a crankshaft axis (110) of the engine (100). An expansion piston (114) is slidably received within an expansion cylinder (104) and operatively connected to the crankshaft (108) such that the expansion piston (114) reciprocates through an expansion stroke and an exhaust stroke of a four stroke cycle during a single rotation of the crankshaft (108). A compression piston (116) is slidably received within a compression cylinder (106) and operatively connected to the crankshaft (108) such that the compression piston (116) reciprocates through an intake stroke and a compression stroke of the same four stroke cycle during the same rotation of the crankshaft (108). A ratio of cylinder volumes from BDC to TDC for either one of the expansion cylinder (104) and compression cylinder (106) is substantially 20 to 1 or greater.
105 citations
Patent•
8 Jul 2002
TL;DR: In this paper, a four-stroke cycle internal combustion engine including a crankshaft, rotating about the axis of the engine, is described, where a power piston is slidably received within a first cylinder and operatively connected to the crankshaft such that the power piston reciprocates through a power stroke and an exhaust stroke of a four stroke cycle during a single rotation of the crankhaft.
Abstract: A four stroke cycle internal combustion engine including a crankshaft, rotating about a crankshaft axis of the engine. A power piston is slidably received within a first cylinder and operatively connected to the crankshaft such that the power piston reciprocates through a power stroke and an exhaust stroke of a four stroke cycle during a single rotation of the crankshaft. A compression piston is slidably received within a second cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke of the same four stroke cycle during the same rotation of the crankshaft. A gas passage interconnects the first and second cylinders. The gas passage includes an inlet valve and an outlet valve defining a pressure chamber therebetween.
60 citations
Patent•
10 May 1973TL;DR: A two-stroke cycle split cylinder internal combustion engine includes in preferred form interconnected induction and power cylinders having pistons phased and valves controlled to follow a cycle including drawing in and compressing a charge in the induction cylinder, transferring the charge to the power cylinder for mixture in part with retained exhaust products and further compressing the combined charge in power cylinder, igniting a relatively undiluted portion of the charge and burning the charge, expanding the powercyl to produce power and reducing the pressure of burned products in the expanded cylinder by exhausting a substantial portion thereof, leaving a retained charge of
Abstract: A two-stroke cycle split cylinder internal combustion engine includes in preferred form interconnected induction and power cylinders having pistons phased and valves controlled to follow a cycle including drawing in and compressing a charge in the induction cylinder, transferring the charge to the power cylinder for mixture in part with retained exhaust products and further compressing the combined charge in the power cylinder, igniting a relatively undiluted portion of the combined charge and burning the charge, expanding the power cylinder to produce power and reducing the pressure of burned products in the expanded cylinder by exhausting a substantial portion thereof, leaving a retained charge of burned products at substantially the pressure existing in the engine exhaust system for subsequent mixing with a new charge from the induction cylinder.
48 citations
Patent•
11 Feb 2008
TL;DR: In this paper, a split-cycle water injection engine includes a crankshaft rotatable about a crankhaft axis and a power piston sliding through a crossover passage between the compression cylinder and the power/expansion cylinder.
Abstract: A split-cycle water injection engine includes a crankshaft rotatable about a crankshaft axis. A power piston. is slidably received within a power/expansion cylinder and operatively connected to the crankshaft. A compression piston is slidably received within a compression cylinder and operatively connected to the crankshaft. A crossover passage is operatively connected between the compression cylinder and the power/expansion cylinder and selectively operable to receive compressed air from the compression cylinder and to deliver compressed air to the power/expansion cylinder for use in transmitting power to the crankshaft during engine operation. Valves selectively control gas flow into and out of the compression and power cylinders. A water injector is associated with and adapted to inject water into at least one of the compression cylinder, the crossover passage and the power cylinder during engine operation.
46 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2020 | 6 |
| 2019 | 6 |
| 2018 | 2 |
| 2017 | 4 |
| 2016 | 5 |