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GM Daewoo Euro5 Oil Pump / Balance Shaft Module Mule 1 - Design Review 27 June, 2007 PowerPoint PPT Presentation


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GM Daewoo Euro5 Oil Pump / Balance Shaft Module Mule 1 - Design Review 27 June, 2007. OP/BSM - Front View. OP/BSM - RH View. OP/BSM - Rear View. OP/BSM - LH View. OP/BSM - Top View. OP/BSM - Bottom View. OP/BSM - Bill of Material. 13. 14. 5. 18. 1. 8. 9. 15. 12. 7. 11. 16. 6.

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GM Daewoo Euro5 Oil Pump / Balance Shaft Module Mule 1 - Design Review 27 June, 2007

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Gm daewoo euro5 oil pump balance shaft module mule 1 design review 27 june 2007

GM Daewoo Euro5 Oil Pump / Balance Shaft ModuleMule 1 - Design Review27 June, 2007


Op bsm front view

OP/BSM - Front View


Op bsm rh view

OP/BSM - RH View


Op bsm rear view

OP/BSM - Rear View


Op bsm lh view

OP/BSM - LH View


Op bsm top view

OP/BSM - Top View


Op bsm bottom view

OP/BSM - Bottom View


Op bsm bill of material

OP/BSM - Bill of Material

13

14

5

18

1

8

9

15

12

7

11

16

6

10

17

19

3

2

4

20


Op bsm c s gear isometric view

OP/BSM + C/S Gear - Isometric View


Op bsm upper lower housings

OP/BSM - Upper + Lower Housings

  • Qualified clearance cuts to guarantee required clearance to Crank Shaft & Conrod loci

Integrated Oil pump inlet + discharge channels

Material:

-Mule1: 6061T6 Machined Billet Aluminium

-Mule2: A356T6 Plaster Mold

-Protoypes/production: A383 (ADC12) Die Cast


Op bsm line bore assembly

OP/BSM - Line Bore Assembly

  • 11x M8-1.25x45 Flange head bolts:

  • Maximum clamping force to eliminate fretting between upper & lower housings

  • maintain true roundness of bearing bores (during & after line boring Ops)

  • Oil pump cover mating face & dowel holes are machined in same setup to guarantee profile & flatness

  • Assembly clamped down at four bolt locations with actual bolt clampload force during machining ops to replicate assembled on-engine condition


Op bsm gear train c s driver driven

OP/BSM – Gear Train (C/S, Driver, Driven)

-122x61x61 / 24NDP / 14.5°NPA / 32.75°HA

-Designed to maintain 20µm backlash @ min. ctr distance & max tooth thickness

-Material: 42CrMo4 (4140)

-Mach. Process: Ground


Op bsm balance shafts bearings

OP/BSM – Balance Shafts + Bearings

  • Parent Metal bearings on lightly loaded journals

  • Proven design (Current production BSM application) split shell friction bearings:

  • -Low Carbon Steel back

  • -Federaloy A-515 lining

  • Total unbalance: 8.5 kg.mm

  • “Double D-Flat” Gerotor drive on Driven Shaft

  • Patented I beam design for maximum stiffness. < 3µm deflection across any journal width:

  • Minimal bearing edge loading

  • -True running transfer gears)

  • D4512 Ductile Iron balance shafts w/ ground + polished bearing journals surfaces (Ra 0.16)


Op bsm oil pump components

OP/BSM – Oil Pump Components

  • Spring: rate set for PRV to open @ 570kPa

  • Pressure Regulating Valve: -Material: Steel

  • -vented cross-drill design

  • -sharp edged for less debris sensitivity

  • 6073 Type Trochoidal Gerotor

  • -2:1 Drive ratio

  • -26.5L @ 1300 erpm Flow Rate


Op bsm oil pump housing

OP/BSM – Oil Pump Housing

Material:

-Mule1: 6061T6 Machined Billet Aluminium

-Mule2: A356T6 Plaster Mold

-Prototypes/production: A383 (ADC12) Die Cast

  • Progressive opening PRV / oil bypass cavity


Op bsm oil flow routing

OP/BSM – Oil Flow Routing


Op bsm engine dowels

OP/BSM – Engine Dowels

  • Oil discharge port

  • BS Bearing oil feed port

  • Dia14 OP/BSM Locating Dowels to bed plate


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