154 uppsatser · sida 1 av 11
av kärntillverkningen på Affärsenhet Cylinder ASSA AB
Business unit Cylinder at ASSA AB in Eskilstuna are having problem with frictions in their production process. Changes are occurring and older products along with machineries are phased out and transferred to low-cost countries. This opens up possibilities to at a larger extend …
… several sliding contacts, one of these, is the contact between piston ring and cylinder bore. The radial piston hydraulic motors advantage is to produce high torque in very low rotation velocity, this result in that the maximum sliding velocity between piston ring and cylinder …
… (8-2-2). A study in GT-Power has shown improved performance and reduced cylinder to cylinder variations using two manifolds at each bank in combination with a single entry turbine (8-4-1). This thesis work analyses the difference in performance shown in simulation and verify it …
… the relationship between geometric parameters and the swirl number for an XPI- cylinder head in order to improve the design specification. The increased focus on environmental issues from society leads to tighter emission legislations for the truck manufactures. In order to …
… the long throughput times are the difficulties arising with the manufacture of cylinder tubes. The company has realized that streamlining of the production flow for cylinder tubes has to be done. Therefore, the aim of this study, based on a stationary machinery conditions is to …
When cylinders for motor saws are manufactured there are high demands on the cylinders strength and wearing qualities. Aluminum is a material with low density and is used by Husqvarna AB for their motor saw cylinders. The aluminum is strengthening with nickel that is attached to …
… motordelar under tiden dessa hanteras på olika sätt hos Scania i Södertälje. Cylinderfoder är en del i motorn och flödet för den komponenten är ett begränsat område att börja förbättringsarbetet på. För att i slutändan komma med en långvarig lösning för renhetshållning av …
… rod is creating a rotating motion it is creating side forces up in the cylinder. These forces are creating friction and wear on the piston and the cylinder. Today’s engines have an efficiency loss in total of 70%. 30 % is lost in the cylinder. Solving this problem could result …
… ställs det nya krav på motorns material och det gäller framförallt motorns cylinderfoder och kolvringar som detta arbete inriktar sig på. Syftet med arbetet är att med hjälp av en nötningsrigg sålla mellan olika material och ytbeläggningar under EGR-liknande förhållanden samt …
… After an initial description of the mesh creation process, studies of the in-cylinder charge motion, created during the intake stroke, were made to investigate the presence of a tumble motion. The result shows that a strong tumble motion is not generated. This could also be …
En förstudie av aktuella flödestyper och layouter för cylinderfodertillverkningen
… står i nuläget inför en stegvis höjning av produktionsvolymen. Vid cylinderfodertillverkningen utnyttjas produktionen nära maximal kapacitet och något måste därmed göras för att Scania ska kunna säkra leveranserna i framtiden. Målet med detta projekt har varit att presentera ett …
… engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved. The aim of this thesis was to …
Med avseende på friktion och nötningsmotstånd
… engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved. The aim of this thesis was to …
… and tensile strength tests. They wanted to do this by using a hydraulic cylinder, which they already possessed, to apply the force with. This required a load receiving structure. The aim of this work was to design and dimensioning a test bench for a cylinder marked NIKE 300 …
… utsidan av kolven. När lagret blir tillräckligt tjockt skrapar det insidan av cylindern vilket påverkar ytan negativt samtidigt som den blir ojämn. Oljeförbrukningen ökar dessutom, då den olja som finns på insidan av cylindern trycks uppåt och därmed förbränns i …
