Cams with High Efficiency

F. I. Petrescu(1*), R. V. Petrescu(2)

(1) Senior Lecturer at UPB (Bucharest Polytechnic University), TMR (Theory of Mechanisms and Robots) department., Romania
(2) Senior Lecturer at UPB (Bucharest Polytechnic University), TTL (Transport, Traffic and Logistics) department., Romania
(*) Corresponding author


DOI's assignment:
the author of the article can submit here a request for assignment of a DOI number to this resource!
Cost of the service: euros 10,00 (for a DOI)

Abstract


The paper presents an original method to increase the efficiency of a mechanism with cam and follower. The distribution mechanisms work with small efficiency for about 150 years; this fact affects the total yield of the internal heat engines. Much of the mechanical energy of an engine is lost through the mechanism of distribution. Multi-years the yield of the distribution mechanisms was only 4-8%. In the past 20 years it has managed a lift up to the value of 14-18%; car pollution has decreased and people have better breathing again. Meanwhile the number of vehicles has tripled and the pollution increased again. Now, it’s the time when we must try again to rise the yield of the distribution mechanisms. This paper treats only two modules: the mechanism with rotary cam and plate translated follower and the mechanism with rotary cam and translated follower with roll.
Copyright © 2013 Praise Worthy Prize - All rights reserved.

Keywords


Cam Dimensions; Efficiency; Distribution Mechanism with High Efficiency; Distribution Settings; Distribution Parameters

Full Text:

PDF


References


P. Antonescu, F. Petrescu, O. Antonescu, Contributions to the Synthesis of The Rotary Disc-Cam Profile, In VIII-th International Conference on the Theory of Machines and Mechanisms, Liberec, Czech Republic, p. 51-56, 2000.

F.I. Petrescu, Theoretical and Applied Contributions about the Dynamic of Planar Mechanisms with Superior Joints, Doctoral Thesis, Bucharest Polytechnic University, 2008.

F.I. Petrescu, R.V. Petrescu, Contributions at the dynamics of cams. In the Ninth IFToMM International Symposium on Theory of Machines and Mechanisms, SYROM 2005, Bucharest, Romania, 2005, Vol. I, p. 123-128.

Z. Ge, a.o., Mechanism Design amd Dynamic Analysis of Hybrid Cam-linkage Mechanical Press, Key Engineering Materials Journal, Vol. 474-476 (2011), p. 803-806.

Z. Ge, a.o., CAD/CAM/CAE for the Parallel Indexing Cam Mechanisms, Applied Mechanics and Materials Journal, Vol. 44-47 (2011), p. 475-479.

A. Ghazimirsaied, Seyed Ali Jazayeri, Amir H Shamekhi, Improving Volumetric Efficiency using Intake Valve Lift and Timing Optimization in SI Engine, (2010) International Review of Mechanical Engineering (IREME) 4 (3), pp. 244-252.

M. Hamid, Kourosh H. Shirazi, Using Homotopy Analysis Method to Determine Profile for Disk Cam by Means of Optimization of Dissipated Energy, (2011) International Review of Mechanical Engineering (IREME) 5 (5), pp. 941-946.

M. Liu, Z. Qian, Research on Reverse Design of the Cam Mechanism, Applied Mechanics and Materials Journal, Vol. 43 (2011), p. 551-554.

Y. Samim, a.o., Analytical Dynamic Response of Elastic Cam-Follower Systems with Distributed Parameter Return Spring, Journal of Mechanical Design (ASME), Vol. 115, Issue 3, (online June 2008), p. 612-620.

R. Shriram, M. Mari Ram Kumar, T. Vignesh Aadhithya, B. Vijaya Ramnath, Design and Development of Camless Valve Train for I.C. Engines, (2012) International Review of Mechanical Engineering (IREME), 6 (5), pp. 1044-1049.

W. Wang, Creation Design of Cam Mechanism Based on Reverse Engineering, Advanced Materials Research Journal, Vol. 230-232 (2011), p. 453-456.

F. Xianying, a.o., Meshing Efficiency of Globoidal Indexing Cam Mechanism with Steel Ball, Advanced Materials Research Journal, Vol. 413 (2012), p. 414-419.

H.D. Zhao, a.o., Research on Dynamic Behavior of Disc Indexing Cam Mechanism Based on Virtual Prototype Technology, Key Engineering Materials Journal, Vol. 499 (2012), p. 277-282.

G. Zhou, a.o., Seriation Design and Research on Cam Shedding Mechanism of Looms, Advanced Materials Research Journal, Vol. 479-481 (2012), p. 2383-2388.

Petrescu, F.I.T., Petrescu, R.V.V., Dynamic synthesis of the rotary cam and translated tappet with roll, (2013) International Review on Modelling and Simulations (IREMOS), 6 (2), pp. 600-607.


Refbacks

  • There are currently no refbacks.



Please send any question about this web site to info@praiseworthyprize.com
Copyright © 2005-2018 Praise Worthy Prize