Rotary vane pump now with 1.5 m3/h flow

World Pumps ◽  
2005 ◽  
Vol 2005 (467) ◽  
pp. 7
Keyword(s):  
Vane Pump ◽  
Rotary Vane Pump

A Full Shift True Breathing Zone Air Sampler and Its Application to Lead Workers

1981 ◽  
Vol 195 (1) ◽  
pp. 325-328 ◽  
Author(s):  
J Allen ◽  
E G Bellinger ◽  
R I Higgins
Keyword(s):  
Glass Fibre ◽  
Breathing Zone ◽  
Air Concentration ◽  
Vane Pump ◽  
Air Sampler ◽  
Rotary Vane Pump ◽  
Lead In Air ◽  
Full Shift ◽  
Lead Workers ◽  
Average Lead

A completely head-mounted full shift dust sampler for monitoring the lead-in-air concentration in a lead worker's actual breathing zone is described. A small filter head is positioned within 5 cm of the mouth and nose on an adjustable stalk. Air is drawn through a 1.25 cm diameter glass fibre filter at a rate of 0.51/min by a small rotary vane pump. Initial comparisons with a conventional lapel-mounted UKAEA head powered by a Casella pump show that the average lead-in air concentration in the true breathing zone can be significantly different from that around the lapel.

scholarly journals IMPROVEMENT OF A ROTARY VANE PUMP FOR AN OCEAN WAVE POWER CONVERTER: PENDULOR

1999 ◽  
Vol 1999 (4) ◽  
pp. 73-78
Author(s):  
Tomiji WATABE ◽  
Hirotaka YOKOUCHI ◽  
Hideo KONDO ◽  
Masaru INOYA ◽  
Mamoru KUDO
Keyword(s):  
Power Converter ◽  
Ocean Wave ◽  
Wave Power ◽  
Vane Pump ◽  
Rotary Vane Pump

Design on High Vacuum System with Molecular Pump

2012 ◽  
Vol 220-223 ◽  
pp. 459-462 ◽  
Author(s):  
Chong Zhang ◽  
Jin Hua Zheng ◽  
Cong Hui Li ◽  
Yun Feng Chao ◽  
Long Jun Li ◽  
...  
Keyword(s):  
Molecular Sieve ◽  
Vacuum Chamber ◽  
High Vacuum ◽  
Vacuum System ◽  
Measuring Instruments ◽  
Vane Pump ◽  
Two Stage ◽  
Rotary Vane Pump

This paper aimed at finishing a two-stage oil-free high-vacuum system using a molecular pump as the main pump and a rotary vane pump as the backing pump. Before the pump’s inlet, there is a molecular sieve. With the assistance of the high and low vacuum measuring instruments and other accessories, the system can achieve limiting vacuum of 5×10-5Pa in the vacuum chamber whose volume is 0.085m3 and provide the high vacuum needed for vacuum coating equipments whose magnitude is 100mm.

Air Supply System for the Fuel Cell of a Mobile Robot

2006 ◽  
Author(s):  
Choong Hyun Kim ◽  
Yong-Bok Lee
Keyword(s):  
Fuel Cell ◽  
Mobile Robot ◽  
Small Volume ◽  
Supply System ◽  
Outer Diameter ◽  
Maximum Output ◽  
Vane Pump ◽  
Robot System ◽  
Rotary Vane Pump ◽  
Air Supply

An air supply system has been developed for the fuel cell of a mobile robot, named ROBHAZ, using a rotary vane pump with a muffler. Research is concentrated on the design of the system, not only decreases the sound pressure level to an affordable range but also provides appropriate air flow rate for the fuel cell with the maximum output of 500W. At the same time, it has small volume; outer diameter of 80mm and total length of less than 150mm; which enables its installation into the limited space of the robot system. The muffler was designed to have concentric pipes to form a dual muffler which corresponds to the intake and outlet of the pump, respectively. DC motor was assembled inside the inner muffler to save the space. Developed device is thought be a satisfactory air supply system for a fuel cell.

scholarly journals Investigation of the Internal Displacement Chamber Pressure of a Rotary Vane Pump

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3341
Author(s):  
Timm Hieronymus ◽  
Thomas Lobsinger ◽  
Gunther Brenner
Keyword(s):  
Cfd Simulation ◽  
Low Noise ◽  
Operating Conditions ◽  
Internal Displacement ◽  
Chamber Pressure ◽  
Vane Pump ◽  
Noise Sources ◽  
Rotary Vane Pump ◽  
Automatic Transmissions ◽  
Set Up

Low noise emissions of vehicle components are today a quality feature in the automotive sector. In automatic transmissions in particular, the hydraulic pump often contributes significantly to noise, which motivates research to clarify the noise sources and transmission pathways in these components. The subject of the present investigation is the generation of noise by the inherently instationary flow in hydraulic pumps. In order to shed some light on these phenomena, a computational fluid dynamics (CFD) simulation model for flow investigations on rotary vane pumps was set up. In this work, first the influence of different simulation parameters on the numerical results is analyzed. Then the pressure in the internal displacement chambers of the pump is examined, as it can be assumed that this is the essential parameter for noise generation. Different operating conditions such as rotational speeds and delivery pressures are investigated. Furthermore, the simulation results are compared to pressure measurements for validation and are used to find optimization potentials.

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