Vilnis Pīrs
Dr. sc. ing.Amats
- Spēkratu institūts - asociētais profesors; galvenais inženieris; vadošais pētnieks
Pieņemšanas laiki
- P 15:00 - 16:00, 222 kab. TF
- O 15:00 - 16:00, 222 kab. TF
Studiju kursi
- Mašīnu remonts un drošums
- Mašīnu tehniskā apkalpošana
- Bakalaura darbs
- Mašīnu tehniskā apkalpošana I
- Mašīnu tehniskā apkalpošana II
- Automobiļu tehniskā apkalpošana I
- Automobiļu tehniskā apkalpošana II
- Alternatīvās enerģijas spēkrati
- Spēkratu diagnostika un serviss
- Tehnoloģiskā profesionālā prakse
Zinātniskās publikācijas
- An experimental investigation on aldehyde and methane emissions from hydrous ethanol and gasoline fueled SI engine / Maris Gailis, Vilnis Pirs, Marcis Jansons, Gints Birzietis, Ilmars Dukulis
- Investigation in fuel consumption of a hybrid and conventional vehicle / R. Šmigins, V. Pīrs, D. Berjoza
- Investigation in fuel consumption of a hybrid and conventional vehicle / R. Šmigins, V. Pīrs, D. Berjoza
- Possibilities to identify defective electric automobile batteries / D. Berjoza, V. Pirs, I. Jurgena
- Comparison of vehicle performance using fossil diesel fuel blends with biodiesel and HVO fuel / Kristaps Sondors, Aivars Birkavs, Vilnis Pirs, Gints Birzietis, Ilmars Dukulis
- Possibilities to identify defective electric automobile batteries / D. Berjoza, V. Pirs, I. Jurgena
- Testing automobile braking parameters by varying the load weight / Dainis Berjoza, Ilmars Dukulis, Vilnis Pirs, Inara Jurgena
- Research in parameters of acceleration of electric vehicle depending on transmission gear ratio / Dainis Berjoza, Inara Jurgena, Vilnis Pirs
- Bioetanola sadedzes kaitīgo izmešu samazināšanas iespējas dzirksteļaizdedzes motoros : promocijas darba kopsavilkums Ph.D. zinātniskā grāda iegūšanai = Reduction of Harmful Emissions from Bioethanol Combustion in Spark Ignition Engines : summary of the doctoral thesis for the scientific degree of Ph.D. / Māris Gailis ; darba zinātniskais vadītājs Dr.sc.ing. Vilnis Pīrs ; oficiālie recenzenti: Dr.sc.ing. Dainis Viesturs, Dr.chem. Kristaps Māliņš, Ph.D. Risto Ilves ; Latvijas Lauksaimniecības universitāte. Tehniskā fakultāte.
- Bioetanola sadedzes kaitīgo izmešu samazināšanas iespējas dzirksteļaizdedzes motoros = Reduction of Harmful Emissions from Bioethanol Combustion in Spark Ignition Engines : promocijas darbs zinātnes doktora (Ph.D.) zinātniskā grāda iegūšanai lauksaimniecības inženierzinātnes apakšnozarē / Māris Gailis ; promocijas darba vadītājs Dr.sc.ing. Vilnis Pīrs ; Latvijas Lauksaimniecības universitāte. Tehniskā fakultāte. Spēkratu institūts.
- Practical methodology for calculation of specific gaseous emissions / Maris Gailis, Ilmars Dukulis, Vilnis Pirs, Gints Birzietis
- Investigation into the performance characteristics of electric automobiles by means of a data logger / D. Berjoza, V. Pīrs, I. Jurgena
- Energy use efficiency of electric automobile depending on transmission gear ratio / Dainis Berjoza, Vilnis Pirs, Inara Jurgena, Janis Laceklis-Bertmanis
- Investigation into the performance characteristics of electric automobiles by means of a data logger / D. Berjoza, V. Pīrs, I. Jurgena
- Effect of commercial diesel fuel and hydrotreated vegetable oil blend on automobile performance / G. Birzietis, V. Pirs, I. Dukulis, M. Gailis
- Effect of commercial diesel fuel and hydrotreated vegetable oil blend on automobile performance / G. Birzietis, V. Pirs, I. Dukulis, M. Gailis
- Experimental analysis of combustion process in SI Engine using ethanol and ethanol-gasoline blend / M. Gailis, V. Pirs
- Experimental analysis of combustion process in SI Engine using ethanol and ethanol-gasoline blend / M. Gailis, V. Pirs
- Development and analysis of a driving cycle to identify the effectiveness of the vacuum brake booster / D. Berjoza, V. Pirs, I. Dukulis, I. Jurgena
- Experimental investigation of effectiveness of electric vehicle vacuum brake booster on power test bench / Dainis Berjoza, Vilnis Pirs, Ilmars Dukulis
- Development and analysis of a driving cycle to identify the effectiveness of the vacuum brake booster / D. Berjoza, V. Pirs, I. Dukulis, I. Jurgena
- Assessment of compatibility of fuel supply system polymeric parts with bioethanol/gasoline blend E85 / Maris Gailis, Vilnis Pirs
- The difference between the physical properties of petrol and alkylate petrol and impact on the exhaust gas of a two-stroke engine / Risto Ilves, Arne Küüt, Gints Birzietis, Vilnis Pirs, Andrey Vlasov, Jüri Olt
- Effect of ignition timing on emissions of spark ignition engine using E85 fuel / Maris Gailis, Vilnis Pirs
- Evaluation of hydraulic hitch-system improvement / Janis Laceklis-Bertmanis, Vilnis Pirs, Eriks Kronbergs, Aivars Metla-Rozentals
- Regulated emissions from spark ignition engine adapted for use of E85 fuel / Vilnis Pirs, Maris Gailis
- Investigation in tractor Claas Ares 557ATX operating parameters using hydrotreated vegetable oil fuel / Kristaps Sondors, Aivars Birkavs, Ilmars Dukulis, Vilnis Pirs, Zanis Jesko
- Selection criteria of fuel injectors for gasoline to E85 fuel conversion / Maris Gailis, Vilnis Pirs
- Experimental investigation of fuel conversion adapter using bioethanol and gasoline blends / Maris Gailis, Vilnis Pirs
- Research in use of fuel conversion adapters in automobiles running on bioethanol and gasoline mixtures / V. Pirs, M. Gailis
- Experimental study in gasoline engine injector performance / Maris Gailis, Vilnis Pirs
- Investigation of dynamical and exploitation parameters of slow moving electric car on chassis dynamometer / Vilnis Pirs, Zanis Jesko
- Automobile technical solutions and selection of parameters for rebuilding into electromobile / Dainis Berjoza, Vilnis Pirs
- Hydropneumatic suspension for tractor implement / Janis Laceklis-Bertmanis, Vilnis Pirs, Eriks Kronbergs, Aivars Metla-Rozentals, Maris Metla
- Physical model of tractor implement / Janis Laceklis-Bertmanis, Vilnis Pirs, Eriks Kronbergs, Aivars Metla-Rozentāls, Māris Metla
- Bioetanola izmantošana ottomotoros : promocijas darbs Dr.sc.ing. zinātniskā grāda iegūšanai / Vilnis Pīrs ; zinātniskais vadītājs Dainis Berjoza ; Latvijas Lauksaimniecības universitāte. Tehniskā fakultāte. Spēkratu institūts.
- Bioetanola izmantošana ottomotoros : promocijas darba kopsavilkums Dr.sc.ing. zinātniskā grāda iegūšanai / Vilnis Pīrs ; zinātniskais vadītājs Dainis Berjoza ; Latvijas Lauksaimniecības universitāte. Tehniskā fakultāte. Spēkratu institūts = Application of bioethanol in otto engines : promotion paper resume for awarding the scientific degree Dr.sc.ing. / Vilnis Pīrs ; scientific advisor Dainis Berjoza ; Latvia University of Agriculture. Faculty of Engineering. Institute of Motor Vehicle.
- Research in influence of engine air filter replacement periodicity / Maris Gailis, Vilnis Pirs
- Theoretical model of exploitation of automobiles operated with bioethanol-gasoline mixture fuels / Aivars Aboltins, Dainis Berjoza, Vilnis Pirs
- Emission reduction potential of using biofuels / Vilnis Pirs, Ilmars Dukulis
- Investigation of pressure oscillation in hydraulic hitch-system / Janis Laceklis-Bertmanis, Vilnis Pirs, Zanis Jesko
- Mathematical model of motor vehicle exploitation parameter calculation using bio ethanol fuels / Dainis Berjoza, Vilnis Pirs
- Mathematical model of motor vehicle exploitation parameter calculation using bio ethanol fuels / Dainis Berjoza, Vilnis Pirs
- Exhaust emissions from vehicles operating on rapeseed oil fuel / I. Dukulis, G. Birzietis, V. Pirs, A. Birkavs, Z. Jesko
- Fuel consumption studies of spark ignition engine using blends of gasoline with bioethanol / V. Pirs, D. Berjoza, G. Birzietis, I. Dukulis
- Bioethanol gasoline fuel blends effect on standard spark-ignition engine operating parameters = Bioetanolio – benzino mišinių įtaka standartinio kibirkštinio uždegimo variklio darbo rodikliams / V. Pirs, V. Malnicenko
- Development of driving cycles for dynamometer control software corresponding to peculiarities of Latvia / Ilmars Dukulis, Vilnis Pirs
- Testing of automobile VW Golf operating on three different fuels / Ilmars Dukulis, Vilnis Pirs, Zanis Jesko, Aivars Birkavs, Gints Birzietis
- Adapting of automobile VW Golf for using pure rapeseed oil as fuel / Ilmars Dukulis, Aivars Birkavs, Gints Birzietis, Vilnis Pirs
- Development of methods for testing automobiles operating on biofuels / Ilmars Dukulis, Vilnis Pirs, Zanis Jesko, Aivars Birkavs, Gints Birzietis
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