Mechanism and Engine Types: Transmission & Function
Mechanism and Engine Types
Transmission Mechanisms
The transmission ratio is the ratio of the velocities of two moving elements, represented by “r”.
A mechanism train is the union of several simple mechanisms. There are three main types:
- Reducing Transmission System: Used to attach a pulley system to a system of gears. It reduces the speed of a motor and can be achieved with multiple pulleys.
- Gear Train: Used to increase the speed of a mechanism. Employs multiple gears or pulleys.
- Pulley Train: Used to
Construction Plan Essentials: A Detailed Overview
Part Graphic: Plan of Construction
Number of planes in which one tries to define as precisely as possible all those elements and data we need to carry out the work. You have to supplement previously made memories. There are two types:
- A. Describe the work.
- B. Executives: that the work is constructed and what elements should lead this work.
Within the specification (A) find the location map, location, layout, marking, and surfaces.
- Location map: Map will appear in the area in which we work.
- Map location:
Aircraft Engine Components & Systems
Aircraft Engine Components and Systems
Bearings and Supports
- 1: Thrust bearing for low-pressure rotor (LPR)
- 2: Radial support for the front of the low-pressure compressor (LPC) drive shaft
- 3: Thrust bearing for high-pressure rotor (HPR)
- 4: Radial support for the high-pressure compressor (HPC)
- 5: Radial support for the low-pressure turbine (LPT)
- Oil-damped bearings: 1, 3, 5
- Carbon seals (dry-faced): 1, 2, 3, 5
- Roller bearings: 2,4,5
- Bearings: 3 (LP rotor), 2 (HP rotor)
Stages and Stations
- 117 STA #1 & #5
- 10th,
Multivalve, Variable Intake, and Valve Timing Systems
Multivalve Systems
Multivalve Systems involve using more than one valve for intake and exhaust (ESCP), operating either simultaneously or only when necessary. In a four-valve configuration, the valves are typically mounted in parallel, two by two, on the cylinder head. They are usually controlled by two camshafts: one for intake and one for exhaust.
Benefits of Multivalve Systems
- The intake cross-section is increased by at least 30%, improving airflow.
- Optimizes the size and shape of the combustion
Electrical, Pneumatic, and Oleohydraulic Circuits
Design and Planning of Optimized Solutions
Design and planning of the optimized solution: This phase involves verifying the chosen solution with detailed drawings and accurate measurements. It also describes the materials, tools, and sheet processes or steps required to build the process, including construction details and finish. It includes the estimated implementation time, budget or cost estimate, and possible impacts.
Construction, Implementation, and Evaluation
At this stage, we execute as planned.
Read MoreFluid Mechanics: Principles and Applications
Fluid Mechanics
Tire circuits and hydraulic circuits are fluid circuits. Like electrical circuits, they are subject to a set of basic physical laws and principles, whose study is known as fluid mechanics.
Key Concepts in Fluid Mechanics
- Atmospheric Pressure: The pressure exerted by the atmospheric air on bodies immersed in it.
- Pascal’s Principle: Pressure applied to a fluid confined in a vessel is transmitted equally and acts in all directions.
Fundamental Laws of Perfect Gases
- Boyle’s Law: If the temperature