# Commission Regulation (EU) 2017/1151 of 1 June 2017 supplementing Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information, amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) No 1230/2012 and repealing Commission Regulation (EC) No 692/2008 (Text with EEA relevance), Division 3.4.2: Calibration of a positive displacement pump (PDP)


Figure A5/6
PDP calibration configuration
where:
V0is the pump flow rate at Tp and Pp, m3/rev;
Qsis the air flow at 101,325 kPa and 273,15 K (0 °C), m3/min;
Tpis the pump inlet temperature, Kelvin (K);
Ppis the absolute pump inlet pressure, kPa;
nis the pump speed, min–1.
where:
x0is the correlation function;
ΔPpis the pressure differential from pump inlet to pump outlet, kPa;
Peabsolute outlet pressure (PPO + Pb), kPa.
A linear least squares fit shall be performed to generate the calibration equations having the following form:
V0=D0− M× x0
n=A− B× ΔPp
where B and M are the slopes, and A and D0 are the intercepts of the lines.

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Source: https://www.legislation.gov.uk/eur/2017/1151/annex/Sub/5/division/division/3./division/3.4./division/3.4.2. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-Sub/5/division/division-3./division-3.4./division-3.4.2.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.