Combined cycle combustion controlled three-cylinder engine and its control method
A technology of combined cycle and cycle combustion, which is applied to combustion engines, engine control, internal combustion piston engines, etc., and can solve problems such as low combustion efficiency, NVH performance, and engine performance degradation and reduction
Active Publication Date: 2020-04-14
HYUNDAI MOTOR CO LTD
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Problems solved by technology
Furthermore, since engine performance (e.g., power and torque) decreases when controlling such a combined cycle engine, the commercial value of the engine decreases
[0009] Even though two-cycle engines have lower combustion efficiency compared to four-cycle engines, due to the same displacement of the two-cycle and four-cycle combustion cylinders, it causes a decrease in NVH performance and engine performance
Method used
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[0036] The present disclosure will be described in more detail below with reference to the accompanying drawings. However, the present disclosure may encompass different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. In the present disclosure, the same reference numerals refer to the same components in the various drawings and embodiments.
[0037] figure 1 is a diagram showing a combined cycle combustion control type three-cylinder engine according to an embodiment of the present disclosure.
[0038] refer to figure 1 , the three-cylinder engine includes: a cylinder block 1; a first cylinder 1-1, a second cylinder 1-2 and a third cylinder 1-3; a first piston 3-1, a second piston 3-2 and a third piston 3- 3; crankshaft 5; cylinder head 10; and controller 20.
[0039] ...
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A combined cycle combustion control type three-cylinder engine comprising: a cylinder block; and cylinders, the cylinders being arranged in a row in the cylinder block and constituted by a first cylinder, a second cylinder, and a third cylinder so that the first cylinder, Four-cycle combustion is performed in two of the second cylinder and the third cylinder and two-cycle combustion is performed in the remaining cylinders. A crankshaft is disposed in the first, second, and third pistons and converts reciprocating motion of the respective first, second, and third cylinders into rotational motion. The camshaft receives rotational force from the crankshaft to control respective intake and exhaust timings of the first cylinder, the second cylinder, and the third cylinder.
Description
[0001] Cross-references to related applications [0002] This application claims the benefit of priority from Korean Patent Application No. 10-2015-0128848 filed on September 11, 2015, the entire contents of which are hereby incorporated by reference. technical field [0003] The present disclosure relates to a three-cylinder engine, and more particularly, to a three-cylinder engine of combined cycle combustion control type, which has a compact structure, high fuel efficiency while operating like a two-cycle combustion cylinder and a four-cycle combustion cylinder As well as improved noise, vibration, harshness (NVH), and relates to methods of controlling such engines. Background technique [0004] In recent years, in order to overcome the limitations of improvements in fuel efficiency, engine size, weight reduction, etc. of four-cylinder four-cycle internal combustion engines, three-cylinder engines have been manufactured. [0005] In terms of construction, a three-cylinde...
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IPC IPC(8): F02B75/20F02B75/02F01L1/047F01L1/348F01L1/38F02D13/02F02D41/00F16C3/14F16C3/20
CPCF01L1/047F01L1/348F01L1/38F02B75/02F02B75/20F02D13/0203F02D41/0002F16C3/14F16C3/20F02B2075/1812F02B2075/027F02B2075/025F02D2041/001F16C2360/22F02D41/009F02D41/3058F02D13/02F02D2400/02F02D2400/04F01L1/053F01L1/181F01L1/20F01L1/26F01L2001/0535F01L2250/02F01L2250/04F01L2710/003F01L2800/08F01L2810/03F16C3/06Y02T10/40F02B75/18
Inventor 朴敏奎
Owner HYUNDAI MOTOR CO LTD