Tech Seminar KeSRTC

Cummins BSIII MechanicalB5.9

Sandeep Malik-Product DevelopmentSreenivas – Service-South Area

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Agenda• Product profile – BSIII Mechanical

• Difference compared to BSII engine

• Why Mechanical and not electronics

Product Profile

Cummins is your Every Solution

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B MechanicalBS-I and BS-II

ISBe ElectronicBS-IV

B MechanicalBS-III

B Product Line

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Automotive

Buses Trucks Tippers Defense

Application

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BS-I

=

BS-II

=

BS-III

=

BS-IVEmissions Reductions

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Engine Details

6 Cylinder, Inline ,5.9 LtrTurbo charged and charge air cooled2 Ratings developed and certified130HP@2500rpm and 180HP@2500rpm

2 more ratings under development

Base Engine same as BS-II

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BSIII Mech Major elements of change

4-Valve Cylinder HeadCentrally mounted Injector

(MICO Bosch)

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Waste-Gate Turbocharger

(Holset)

BSIII Mech Major elements of change

High flow water pump for Cooling Optimization (Same as LPO 1616)

Single-Piece Valve Cover

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Customer BenefitsService capability same as BSII

No additional infrastructure requiredNo special tools and training needs

BS-III emission compliance

Proven reliability

Improved performance

Maintenance intervals unchanged

Best in class packaging, size and weight

Comparison with BSII B5.9 product

Cummins is your Every Solution

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RPM

Torq

ue N

M

260024002200200018001600140012001000

450

400

350

300

250

RATING

130HPBSIII

100HPBSII125HPBSII

Delivers More Torque

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RPM

Pow

er K

W

260024002200200018001600140012001000

100

90

80

70

60

50

40

100HPBSII125HPBSII130HPBSIII

RATING

Delivers More Power

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Comparable Fuel Economy

SL NO. DEPOT NO. NO. OF VEHICLES AVG. KMPL

1 31 53 4.222 14 22 4.293 8 38 4.244 26 9 4.205 16 25 4.106 23 20 4.417 17 35 4.378 10 35 4.17

BS III TATA KMPL FOR MONTH OF OCTOBER

Source – BMTC , 401 vehicle in operation

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Major Part Difference compared to BSII

Cylinder HeadValves (Intake/Exhaust)PistonPiston RingValve CoverRocker AssemblyInjectorFuel Lines

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ITEMITEM Cylinder Head

6B 5.9 BSII6B 5.9 BSII 6B 5.9 BSIII 6B 5.9 BSIII

Angular Position InjectorHigh pressure lines & Injectors are Exhaust side of the CylHead

Centrally Located InjectorsHigh Pressure lines on Intake Side of the Cyl Head

Major Part Difference details

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ITEMITEM Cylinder Head

6B 5.9 BSII6B 5.9 BSII 6B 5.9 BSIII 6B 5.9 BSIII

Integral Valve Seat Induction Hardened seat areaCylinder Head Bolts – 3 different lengths

Valve Seat Inserts are FittedAll cylinder Head Bolts are of same Length

2 VALVE PER CYLINDER 4 VALVE PER CYLINDER

Major Part Difference details

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ITEMITEM Cylinder Head6B 5.9 BSII6B 5.9 BSII 6B 5.9 BSIII 6B 5.9 BSIII

External Injector Fuel Return Line to Fuel tank

No external Fuel Return line hence fuel leakage opportunities reducedIntegral Fuel Return lineLeakage fuel from the Match fit and the injector travels through a drilling in the cylinder head and exits at rear of the cylinder head

Major Part Difference details

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ITEMITEM Cylinder Head

6B 5.9 BSII6B 5.9 BSII 6B 5.9 BSIII 6B 5.9 BSIII

Separate Thermostat HousingIndividual Cyl Valve Cover Assly & Valve Cover gasket

Vertical & Integral Thermostat Housing in the cyl head itselfSingle & Integral Valve Cover assly & Gasket

Major Part Difference details

Why Mechanical and No Electronics

Cummins is your Every Solution

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Why Not VP37 System

VP37 – Electronic Diesel Control (EDC) Rotary Pump

Substantial service cost towards purchasing and training on Bosch diagnostic tools

Laptops at each service pointLicenced INCA software for each service point

Called for substantial investment in manufacturing of short-life product

Software release, Fuel pump maps in Bosch ECUSoftware management in Field

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Why Cummins BSIII 130HP

Simplified Design- No electronics

No special skills training towards maintenance.

No additional special tools required.

FIP same as BSII Cummins engine – Easy to repair & maintain.

Fewer engine parts compared to competition

No need of Laptops and Diagnostic software

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Questions