Bi-fuel evolutions of the LEVC TX taxi and VN5 van; vary extender engines run on LPG/biopropane and CNG/biomethane


HP Taxis, Prins Different Gas Techniques and SBL-Automotive revealed of the plug-in hybrid range-extended electrical LEVC TX taxi and VN5 van permitting the vary extender engine to run on LPG and CNG and their renewable counterparts of biopropane and biomethane. The LEVC TX and VN5 are manufactured by London EV Firm (LEVC), a subsidiary of Geely.

TX and VN5 image 3

Adopting these fuels permits carbon emissions from the vary extender engine to be decreased by 10% when LPG is used, 20% when CNG is used and by 99% when renewable biomethane (rather than CNG) and biopropane (rather than LPG) are used. Biomethane and biopropane can each be produced from waste feedstocks resembling meals waste, farm waste and sewage and each are in quantity manufacturing already.

Biomethane and biopropane are drop-in substitute fuels for CNG and LPG and require no adjustments to refueling infrastructure or to a car already advanced with a bi-fuel gas system (CNG or LPG). All of those fuels can be found immediately and in addition supply 30-50% working price financial savings. Additional financial savings are anticipated as biomethane and biopropane manufacturing volumes proceed to ramp up.

The bi-fuel system consists of the next elements:

  • Prins VSI-3 DI system with 3-year guarantee

  • LPG/biopropane gas tank or CNG/biomethane gas tank

  • LPG/biopropane vaporizer or CNG/biomethane strain regulator (each warmed by
    engine coolant)

  • Gaseous gas injectors

  • Bi-fuel ECU

LPG Biopropane vapouriser injectors

LPG / biopropane vaporizer injectors

For CNG/biomethane the engine bay format is analogous. Nevertheless rather than the LPG / biopropane vaporizer, a CNG / biomethane strain regulator is fitted as an alternative.


Engine bay of a bi-fuel LPG/biopropane LEVC TX/VN5

The LPG/biopropane evolution of the TX adopts a 50 liter gas tank and the CNG/biomethane evolution adopts two 40 liter gas tanks.


50 liter LPG / biopropane tank within the trunk of the TX.

In comparison with the car vary utilizing gasoline, the LPG/biopropane tank offers an extra 90% of this vary and the CNG/biomethane tank offers an extra 70% of this vary. Based mostly on LEVC’s WLTP-based vary figures of 64 miles utilizing the battery and an extra 319 miles utilizing the 36 liter gasoline tank (i.e., complete vary 383 miles) the bi-fuel evolutions subsequently ship an extra 287 miles for LPG/biopropane and 223 miles for CNG/biomethane.


CNG/biomethane tank set up within the payload space of the VN5.

Whole vary is subsequently 670 miles for the bi-fuel LPG/biopropane evolution and 606 miles for the bi-fuel CNG/biomethane evolution. Various gas tank options are additionally being developed for the VN5 together with putting the tanks below the ground reasonably than within the payload space.

Conversion prices are nonetheless in growth however the goal is for the system paying for itself in 12 to 18 months. This after all depends upon the variety of miles pushed, the miles per gallon achieved and future adjustments within the value of the fuels. Costs for biomethane and biopropane are anticipated to lower sooner or later as manufacturing volumes proceed to ramp up.


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