Richard Boyd
In memory of
Richard Boyd
1986 – 2016
We are deeply upset by the sad loss of Richard, who was a key member of the Pico family and worked in our North American office for 11 years. We will all miss his knowledge, enthusiasm, friendship and lively sense of humor. Our thoughts are with Richard's family and friends at this difficult time.
Guided Test: In-cylinder cranking compression test for petrol engines
This month Steve Smith has put together a superb Guided Test on in-cylinder cranking compression of a petrol engine using our WPS500X pressure transducer.
This Guided Test will be included in a future update of our PicoScope 6 Automotive software, but you can find the full test on our website right now.
The purpose of this test is to evaluate the cylinder efficiency of a petrol engine through 720° of crankshaft rotation during cranking. The Pico standard compression hose used during this test does not contain a Schrader valve, therefore the rise and fall in cylinder pressures will be recorded relative to crankshaft position.
How to perform the test
PicoScope settings
Channel A: 1 x WPS500X (Range 1) @ -2 .. 14 bar
Timebase: 500 ms/div
Note: Cylinder efficiency is dependent upon: cranking speed, adequate intake and exhaust flow, correct valve timing and the mechanical condition of the engine.
During the various stages of crankshaft rotation, cylinder pressures may be either positive or negative. For the purpose of our test, Atmospheric pressure = 0 bar, therefore any value above 0 bar relates to positive pressure, and any value below 0 bar relates to negative pressure (vacuum).
Note: Engine must be prohibited from starting and fuel injection is cut from all cylinders.
Training
We have a collection of some of the best material for new users to reference and learn how to use their Automotive PicoScope. To view this content please visit the training section of our website.
For a list of Pico-endorsed trainers, please visit the UK or US trainers page.
Events
Please visit Pico Exhibitions for the latest list of
exhibitions and trade shows that Pico and its representatives will be attending.
We're hiring!
Thanks to our continuing success and growth Pico are always seeking talented people to join
our company.
Please visit http://pico.jobs/ to see our current vacancies.
We look forward to hearing from you!
Software releases
Our latest software releases are available as free downloads. To check which release you are
using, start the software and select Help > About.
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Contact details
UK HQ:
Pico Technology, James House, Colmworth Business Park, St. Neots, Cambridgeshire,
PE19 8YP, England
Tel.: 01480 396395 (+44 1480 396395)
Fax: 01480 396296 (+44 1480 396296)
Pico Technology North America Inc.
320 N Glenwood Blvd.
Tyler
TX 75702
United States
Tel:+1 800 591 2796 (Toll Free)
Email: sales@picotech.com
Web: www.picotech.com
Web technical support: www.picotech.com/tech-support/
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