Skip to main content

Internal Gear Pump

Figure shows an internal gear pump. The teeth of one gear project outward, while the teeth of the other gear project inward toward the center of the pump. One gear wheel stands inside the other. This type of gear can rotate, or be rotated by, a suitably constructed companion gear. An external gear is directly attached to the drive shaft of a pump and is placed off-center in relation to an internal gear. The two gears mesh on one side of a pump chamber, between an inlet and the discharge. On the opposite side of the chamber, a crescentshaped form stands in the space between the two gears to provide a close tolerance. The rotation of the internal gear by a shaft causes the external gear to rotate, since the two are in mesh. Everything in the chamber rotates except the crescent, causing a liquid to be trapped in the gear spaces as they pass the crescent. Liquid is carried from an inlet to the discharge, where it is forced out of a pump by the gears meshing. As liquid is carried away from an inlet side of a pump, the pressure is diminished, and liquid is forced in from the supply source. The size of the crescent that separates the internal and external gears determines the volume delivery of this pump. A small crescent allows more volume of a liquid per revolution than a larger crescent.


Labels:

Comments

Post a Comment

Popular posts from this blog

Waste of Transportation, 7 Wastes in Lean Manufacturing (SIX Sigma)

Transport is the movement of materials from one location to another, this is a waste as it adds zero value to the product. Why would your customer (or you for that matter) want to pay for an operation that adds no value? Transport adds no value to the product, you as a business are paying people to move material from one location to another, a process that only costs you money and makes nothing for you. The waste of Transport can be a very high cost to your business, you need people to operate it and equipment such as trucks or fork trucks to undertake this expensive movement of materials. Waste of transport is a consequence of excessively long, intersecting transport paths, temporary storage, load and unload, transport of pallets hither and thither. Waste of transport is also caused by too detailed process breakdown and exaggerated division of work, due to imprecisely defined intermediate warehouses and due to production in large series.  Waste of tra...
Post a Comment
Read more

21st Century, Essay (IELTS)

The 21st century has begun. What changes do you think this new century will bring? Use examples and details in your answer. Man, through the ages, has undergone many changes from the time when he depicted a herd of mammoths on the walls of his cave to these days when he can create beautiful pictures and even make coffee by use of computer technologies without leaving his favorite chair. The 20th century made huge steps in developing computer technologies and reached many goals that made our life much easier. What should we expect in the 21st century? First of all, I think that the pace of our life will speed up: we will move faster from one place to another, from one continent to another using high speed jet airplanes. Second of all, I believe that we will be able to do many things that take much time now without leaving our house. Computers will be everywhere including out clothes. Many people will have chips and mini computers inserted in their heads to hold huge amount of ...
Post a Comment
Read more

The Future of Mechanical Engineering (Emerging Technologies Trends)

  Mechanical Engineering, long centered on designing and producing mechanical systems, is undergoing a profound transformation driven by technological advancements and global challenges. Here are some of the most impactful trends and cutting-edge technologies shaping the future of the field: 1. Artificial Intelligence (AI) and Machine Learning Revolutionizing Processes : AI is transforming how mechanical systems are designed, tested, and maintained. Machine learning-powered predictive maintenance reduces downtime and extends the lifespan of machinery. Practical Example : AI-based simulations optimize product designs virtually, cutting down prototyping costs and accelerating the development process. 2. Additive Manufacturing (3D Printing) Transformative Impact : 3D printing enables the creation of complex designs that are unachievable with traditional methods, facilitating rapid prototyping and on-demand production. Future Prospects : Innovations in materials like metal alloys and c...
Post a Comment
Read more