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Esco Hybrid Parallel Drive HPT420

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Hybrid Drive

Esco Power introduces the unique

 Parallel Hybrid Transmission PHT

To combine a direct diesel and electric drive

The  Parallel Hybrid Transmission PHT420 gives your driveline two different drives and the advantages of both : Diesel-direct and Electric. Both drives can be used within their optimum yield curves and an electric motor can also be used as a generator. This is the ideal solution to many mobile, industrial and marine applications!

Operation : When  the main engine is in operation, the PHT clutch drives directly the marine gear or transmission. When not running at maximum power, additional power can be transmitted thru the PTO to a generator, charging batteries or for other supplies.

When the main engine is not to be in operation, the PHT clutch is disengaging it and power can be transmitted by generator which became an electric motor thru PTI of  the PHT to the marine gear or transmission.

Extra advantages:

-  The PHT gives a 0,67/1 speed increase to the PTO, this means the electric package can be smaller and reduces the cost a lot.

   Using the PTI as power input , the ratio of 1,5/1 will increase the torque to the driveline!

-  The PHT can be mounted between diesel engine and standard marine gear or transmission

- Two power sources are available and can be used in their optimum yield curves, or with synchronization, both can be used at the same time as boost !

- Input
housing SAE 1, 2 or 3
Elasticcoupling SAE 11,5’’ or 14’’
- Output
housing SAE 1, 2 or 3
- Output
dummyflywheel 11,5’’ or 14’’
- Electro-
magneticclutch 24 VDC
- Main input/output direct drive (1/1)
Increasing 0,67/1 to PTO, whichbecomes a ratio of 1,5/1 from PTI
withflange for cardan shaft for generator/electricmotor



Heavy duty Rating

max input torque

max main output torque

max PTO/PTI input/output torque



SAE Input

SAE Output

PHT 320

320 HP  @     2000 rpm

1500 Nm

1800 Nm

1500 Nm

0,67/1  1,50/1

SAE 2 or 3

SAE 2 or 3

PHT 420

420 HP @      2000 rpm

1800 Nm

2500 Nm

1500 Nm

0,67/1  1,50/1



PHT 700

700 HP @      1800 rpm

2800 Nm

3100 Nm

1500 Nm

0,67/1  1,50/1

SAE 1 or 0


We kindly invite you to visit Our stand 
during this year edition of BALTEXPO exposition
in Gdańsk Poland from 3 till 5 September
we will be presenting hybrid drive PHT420

Wherever needed, Esco Power, member of the Esco Group with 70 years of experience provides service & distribution of Power Transmissions for your Diesel- and Hydraulic engines in Marine and Industrial Applications. Our team specialized in selection, sales and after sales as well as our products itself are made it possible to offer you the right solution for every marine or industrial application. TWIN DISC Marine Gearboxes & Industrial Power Transmissions Power Take Off`s  Pump Drives, BRADEN-CARCO-GEARMATIC Winches Carco Hoists & Planetary Gearboxes, Nam Jet High-torque & Low speed Water Jets, Transfluid Fluid Couplings, Clutches, Power Take Off`s, Brakes, RBD & Multi Pump Drives TWIN DISC TECHNODRIVE Pump Drives, Power Take Off`s, Gearboxes and Couplings,  CENTA Elastic couplings, MEKANORD Marine Transmissions, COMER Planetary Drives, Axles, OMSI Split-Shafts and Axles, Esco Couplings Rigid & Flexible Couplings, FUNK Transmissions Pump Drives Axles. Esco Power is experienced with designing very demanding drive lines for varies applications like: heavy duty crushers, emergency drive lines, ventilation systems, mixers, parallel hybrid drives etc. Not only we design and sell we do also provide service and have big inventory for spare parts for all these products.