The centre connecting rod has a palm end at the lower end to which the bottom endbearing keeps are bolted, whereas the upper end of the rod has an integral continuous lower half keep to which the upper halfbearing keeps are bolted. The analysis of the scania line together with a benchmark among different leading companies on the connecting rod manufacturing has been undertaken. Analysis, connecting rod, fea, dynamic, optimization, etc. Pistons and rods the china girl 66cc69cc 2 cycle engine has basically 5 engine geometrics and could be broken into separate classes ie. Connecting rod bolt installation instructions to achieve correct bolt preload and to ensure big end bore roundness after reassembly. After analysis a comparison is made between existing steel connecting rod viz. The vast majority of gen iiiiv smallblocksincluding 5. Connecting rod definition of connecting rod by merriam. Prox connecting rod dimensions by brand prox racing parts. Different sections of connecting rod dimensions are obtained by measuring the dimension of connecting rod by using vernier caliper, micro meter and ruler. The bearing housing and pin bores are measured with a sunnen ag300 precision gauge or dial bore gauge for size and outofround. Crankshaft, piston and connecting rod item 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 19 20 21 22 23 part no. As a connecting rod is rigid, it may transmit either a push or a pull and so the rod may rotate the crank through both halves of a revolution. Move right to columns 2 through 6 for the dimensions.
Wiseco powersports crankshafts feature a double forged connecting rod made from dedicated forgings and are a great foundation for any bottom end rebuild. Bedse1 1department of mechanical engineering, savitribai phule pune university gokhale education societys r. Design and analysis of connecting rod using forged steel. Smallblock connecting rods and components chevrolet. Rod length is measured from the center of the bigend bore to the center of the smallend bore. The connecting rod is required to transmit the compressive and tensile forces from the piston, and rotate at both ends. Wiseco powersports crankshafts and connecting rods wiseco.
Us5878491a process for the manufacture of a forged. Dimensions are measured from connecting rod and cad model is developed in proe 2. Engine dimensions with heavyduty air cleaner dimensions in millimeters. Ensure mating faces are wiped clean remove any old grease from threads of bolts and rod. The fifth section consists of the actual set listings and pertinent. The piston is the single, most active and very critical component of the automotive engine. This first model serves to give a general idea of the areas of high stress concentration and is, therefore, a simplification of the actual connecting rod.
This thesis has been focused on the study of the connecting rod manufacturing process. Jun 07, 2017 gm manufactured ls connecting rods in three different lengths. Therefore, the initial design is compared to other design before performing the optimization. The fourth section consists of original equipment crankshaft forging numbers references to the correct block number for main bearing applications. Styr has encompassed nearly four generations of experience in reverse engineering, product design and application of manufacturing protocols. The average life of a malleable iron connecting rod was 764,962 cycles at a 50% survival rate or 347,734 cycles at a 90%. Together with the crank, the connecting rod converts the reciprocating motion of the piston into the rotation of the crankshaft. Prox connecting rod dimensions all overview prox racing parts. Parameters actual values theoretical values 1 length of connecting rod 122. Youngs modulus e 210 gpa, yield strength s y 210 mpa, poissons ratio. For stock ford 400 rod journal size these rods are not bushed, they are set up for use with a press fit wrist pin pin size. The lower end, also called as big end, is attached to the crankshaft. Prox racing parts connecting rod dimensions overview.
Epaestimated 53mile range based on 106 mpge combined cityhighway electric. Powdered metal pressed together and then put into an oven where it is sintered that means granuals are melted together and forms the rod. It has the same external dimensions, center distances, and mass as the diecast rod. Journal diameter oil clearance side clearance cont. Connecting rod the connecting rod links the piston and the crankshaft. Wiseco powersports crankshafts and connecting rods. Center of main race id to center of piston pin bushing id. This first model serves to give a general idea of the areas of high stress.
The length of the connecting rod compared to the travel of its stroke called the connecting rod ratio directly affects engine smoothness and performance. In addition, it must be measured at the rod journal bearing housing tunnel bore, the piston pin tunnel bore and the centertocenter distance. The connecting rod is one of the most important components in the internal combustion engine rasekh et al. Your actual range may vary based on several factors, including temperature, terrain and driving technique. The gt5sr super rat is a breed all its own in many respects and may be covered elsewhere for documentation and research elsewhere on this site. Analysis and optimization of connecting rod used in heavy. Connecting rod dimensions all dimensions are in mm the initial solid model imported as a. Fem analysis of connecting rod of different materials. Fatigue analysis of connecting rod using finite element analysis 789 the stress at any point on the connecting rod at this axial load can be interpolated from the axial stress analysis results. These fatigue tests were performed to directly mimic the stresses a connecting rod undergoes in an engine. Motorcycle connecting rods of royal rods motorcycle conrod. A comparison of manufacturing technologies in the connecting. The rod must be straight, centertocenter rod length must meet design specs, the pin bore and bigend bore must be perfectly round, each bore must be sized appropriately for wrist pin and crank rod pin fit and oil clearance and the rod must be free.
A connecting rod is a shaft which connects a piston to a crank or crankshaft in a reciprocating engine. Year engine idvin engine displacement liters crankshaft connecting rod main brg. Basic engine dimensions inches gasoline engines mainrodcon rod borejournaljournallength. Pistons and rods pk80 engines two stroke manual guide. The geometric model, finite element mesh, physical dimensions, and design variables are shown in figure 17.
The shape of the connecting rod is to be determined to minimize its weight subject to a set of stress constraints. Apply arp moly assembly lubricant to seating face of bolt and threads of bolt and rod. Specification of the engine to which connecting rod belong is listed in table1. The proper condition of a connecting rod is fairly straightforward.
Our team might find a solution for your application. The present work has been established to replace the existing connecting rod made of forged steel with the aluminium mmc connecting rod for weight optimization. Design and analysis of assembly of piston, connecting rod and. Connecting rod definition is a rod that transmits motion between a reciprocating part of a machine such as a piston and a rotating part such as a crankshaft. Doug woodyard, in pounders marine diesel engines and gas turbines ninth edition, 2009. Connecting rod is the intermediate link between the piston and the crank and is responsible to transmit the push and pull from the piston pin to crank pin, thus converting the reciprocating motion of the piston to rotary motion of the crank. Most automobiles work best with a connecting rod ratio of 1. The connecting rod is the intermediate member between the piston and the crankshaft. Year engine displacement liters engine idvin crankshaft connecting rod main brg.
Sapat college of engineering, management studies and research, nasik 5,india. The rod must be straight, centertocenter rod length must meet design specs, the pin bore and bigend bore must be perfectly round, each bore must be sized appropriately for wrist pin and crank rod pin fit and oil clearance and the rod must be free of. Introduction the automobile engine connecting rod is a high volume production, critical component. Connecting rod cap fastener torque in increments 8 mm straight shank 8 mm stepdown. Rod length should be a function of rpm range and track size. If you do not find the dimensions you need, please fill out our dimension form and send us an email. The connecting rod provides the mechanical linkage between piston and crankshaft and must exhibit properties of high strength, low inertial mass, and uniformity of mass with the other connecting rods attached to the crankshaft. This project aims at designing a connecting rod with standard dimensions of a stock one in creo 3. Dale vice president, member and industry relations metal powder industries federation 105 college road east princeton, nj 085406692 introduction since 1986, more than 500 million powder forged pf connecting rods have been manufactured and installed in automobiles worldwide. We serve both the national and international markets and. Year engine displacement liters engine vin crankshaft connecting rod main brg. Our ceo, arvind singh chandock and md, jasangad singh chandock, bring over 37 years and 14 years of experience in this industry respectively.
Engine and connecting rod specification engine type 4 stroke, 6 cylinder. Ch18ch25, ch620ch730, ch740, ch750 service manual 2 safety 3 maintenance 5 speci. Fatigue analysis of connecting rod using finite element. Its primary function is to transmit the push and pull from the piston pin to the crank pin, thus converting the reciprocating motion of the piston into rotary motion. Engine connecting rod an overview sciencedirect topics. A connecting rod rough forging, free of lateral flash and including at least one bore initiator on the big end and on the small end, is manufactured by forging. A connecting rod, also called a con rod, is the part of a piston engine which connects the piston to the crankshaft. The predecessor to the connecting rod is a mechanic linkage used by water mills to convert rotating motion of the water wheel into reciprocating motion. Geometry and dimensional tolerances of engine bearings. Parting edge where cap and the rod meet is fractured. Connecting rod dimensions and construction can make the difference between a reliable racer and one that self destructs at the first sign of abuse.
Connecting rod t he proper condition of a connecting rod is fairlystraightforward. The real issue is rod ratio, that is the rod length divided by stroke. Pdf size and shape optimization of a two wheeler connecting. Find below our prox racing parts connecting rod dimensions. This method is known as finite element analysis by simulation in which pro e and ansys software packages are used for simulation.
Together with the crank, it forms a simple mechanism that converts reciprocating motion into rotating motion it is the main function of a conne. The connecting rod is modeled as a plane stress problem using 25 quadrilateral pelements. The small end is press fit and can swivel in the piston. Dimensions and tolerances of each of them affect the bearing operation. It has a hole at the upper end small end and is connected to the piston by the wrist pin. There are 73 suppliers who sells connecting rod dimensions on, mainly located in asia. Oil clearance the basic geometrical parameter of an engine bearing is the oil clearance the difference. Crankshaft and connecting rod specifications all measurements are given in inches. Pdf design and analysis of connecting rod using forged. Connecting rods connect the pistons to the crankshaft in internal combustion engines. Wiseco powersports crankshafts and connecting rods wiseco piston inc. A process for manufacturing a forged connecting rod of the type including a big end, a shank and a small end. Static stress analysis of connecting rod using finite.
790 961 1420 514 132 1440 1354 509 322 1351 154 74 1167 1185 1524 394 441 1419 539 166 442 1277 1430 1446 1195 363 1010 497 579 1218 1157 240 1298 516 1474 1163 412 696 922 1431