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M R, Kiran Gowda
- Evaluation of Performance Characteristics of Tri-Lobed Cam Mechanism with 8 o and 9 o Taper Turn in an IC Engine
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Authors
Affiliations
1 HMS Institute of Technology, Visvesvaraya Technological University, Tumkur - 572 104, Karnataka, India., IN
2 Channabasaveshwara Institute of Technology, Visvesvaraya Technological University, NH 206, Gubbi 572 216, Tumkur,Karnataka., IN
3 Symbiosis Institute of Technology (SIT), Symbiosis International (Deemed) University (SIU), Lavale 412 115, Pune,Maharashtra, India., IN
4 PES Institute of Technology and Management, Visvesvaraya Technological University, NH-206, Sagar Road, Shivamogga 577 204, Karnataka, India., IN
1 HMS Institute of Technology, Visvesvaraya Technological University, Tumkur - 572 104, Karnataka, India., IN
2 Channabasaveshwara Institute of Technology, Visvesvaraya Technological University, NH 206, Gubbi 572 216, Tumkur,Karnataka., IN
3 Symbiosis Institute of Technology (SIT), Symbiosis International (Deemed) University (SIU), Lavale 412 115, Pune,Maharashtra, India., IN
4 PES Institute of Technology and Management, Visvesvaraya Technological University, NH-206, Sagar Road, Shivamogga 577 204, Karnataka, India., IN
Source
Journal of Mines, Metals and Fuels, Vol 71, No 2 (2023), Pagination: 171-177Abstract
Customarily, the crank shaft angle has been a fixed function of the intake and exhaust valve opening/lift in IC engines. Substantial fuel efficiency enhancements may be made, nevertheless, if these values are controlled by variable valve timing (VVT) systems that can be adjusted in response to the crankshaft’s angular displacement. The main issues with VVT cam systems, however, stem from the noise and wear brought on by high contact velocities during valve opening and closure. The valve actuators for these kinds of applications now predominantly rely on resonant spring arrangements to provide the necessary valve dynamics, which is another significant issue. In the absence of a completely flexible valve actuation system, this results in a fixed amplitude of the valve trajectory and merely permits variable valve timing. In the current study, an effort is made to develop a novel “TRI-LOBED-CAM” mechanism that may be utilized in conjunction with an established cam operating mechanism to axially move the camshaft via a tiny displacement in response to the engine’s operating circumstances, namely, maximum valve displacement at high loads and high engine speeds, minimum valve displacement at lean loads and low engine speeds, and medium valve displacement at intermediate loads. The article outlines an alternative technique for assessing the performance of newly created Tri-lobed cam mechanisms with 8 o and 9 o taper turns on internal combustion engines. This is used to compare the performance of newly created and commercially available IC engines and determine the effectiveness of the technical solution that is being suggested.Keywords
IC Engine, Performance Characteristics, Tri-Lobed Mechanism, CAM, Taper Turn.
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