TITLE

Pump action

AUTHOR(S)
Excell, Jon
PUB. DATE
December 2004
SOURCE
Engineer (00137758);12/10/2004, Vol. 293 Issue 7665, p31
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
This article reports that an innovative power pump designed by the British engineers that could lead to major improvements in the energy-efficiency of the oil systems used in diesel engines. Developed by Birmingham's Concentric, the new variable flow oil pump is said to use significantly less power than conventional fixed flow pumps. Indeed, the pump has demonstrated savings for heavy-duty engines of between 3 and 4hp at rated speed and more than lhp at cruise speed. Concentric's design office manager Kevin Johanson explained that the problem with the kind of positive displacement pumps typically used is that they are completely linear. He said that the faster one run them the more one gets out of them. With the amount of oil coming out of the pump limited either by a safety release valve or pressure regulator, and the rest of the oil either recirculated within the pump or dumped straight into a pump, there's clearly room for improvement.
ACCESSION #
15359119

 

Related Articles

  • Research on effects of key influencing factors upon fuel injection characteristics of the combination electronic unit pump for diesel engines. Fan, Liyun; Dong, Quan; Chen, Chao; Bai, Yun; Zhao, Wensheng; Ma, Xiuzhen // Journal of Mechanical Science & Technology;Oct2014, Vol. 28 Issue 10, p4319 

    A numerical model of the combination electronic unit pump (CEUP) fuel injection system was developed in AMESim environment. The effects of five key influencing factors, including cam profile velocity, plunger diameter, length of high pressure fuel pipe, inner diameter of high pressure fuel pipe...

  • Experience of making pumps for oil and oil products delivery. Kvasov, G. // Chemical & Petroleum Engineering;Nov2006, Vol. 42 Issue 11/12, p698 

    Various versions of pump designs with an axiradial impeller and an impeller running in conjunction with a preconnected endless screw are examined. Recommendations are offered regarding alteration of the design of the flow section of the axiradial impeller for improving pump characteristics.

  • Assessment of the Mechanical Properties of a Diesel Engine Injector. BÄ…kowski, Andrzej; Jaroszewicz, Jerzy; Radziszewski, Leszek // Applied Mechanics & Materials;2014, Issue 630-642, p334 

    An analytical and experimental model was proposed to determine sac volume pressure changes and fuel doses injected into the diesel engine cylinders. The model takes into account friction forces and identifies the mechanical properties of the injector. The engine performance results were analysed...

  • Genset Revolution. Banse, Tim; Daly, Jim // MotorBoating;Aug2001, Vol. 188 Issue 2, p20 

    Evaluates several diesel gensets. Description of Westerbeke's single-cylinder genset; Details on the genset design of Next Generation Power Engineering; Features of the e-QD series gensets of Onan. INSET: Beware Lethal Genset Fumes.

  • Long live the diesel. Mele, Jim // Fleet Owner;May2001, Vol. 96 Issue 5, p8 

    Focuses on diesel engines. Durability and efficiency of diesel engines; Major advances in diesel technology; Advantages of diesel over gasoline engines.

  • Our favorite alternatives.  // Ward's Auto World;Jan98, Vol. 34 Issue 1, p40 

    Features four diesel powered internal-combustion engines. Names of manufacturers; Details on performance levels; Information on the decline of diesel powered engines.

  • STUDY JUSTIFIES SCR FOR DIESELS.  // Power Engineering;Sep2001, Vol. 105 Issue 9, p86 

    Discusses a study by Ravi Krishnan, director of strategic planning for RJM Corp., which challenges the notion that selective catalytic reduction (SCR) costs on diesel engines are inflationary. Production of diesel and natural gas engines in Washington; Effect of SCR technology on the cost of...

  • Diesel vs. Gasoline. Allen, Hollis // Reeves Journal: Plumbing, Heating, Cooling;Feb2003, Vol. 83 Issue 2, p64 

    Discusses advantages and disadvantages of diesel engines. Reasons cited for oil changes being expensive in diesel engines; Fuel economy of diesel engines; Reference to tests being conducted to improve diesel fuel.

  • THE DIESEL DOCTOR. Rudow, Lenny; McDonald, Pete // Boating;Jun2001, Vol. 74 Issue 6, p80 

    Compares the capacity and performance of a diesel engine and a gas engine.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics