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BP-003 · Porter governor
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215.5
h=117
x=27
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AXIAL SECTION
SCALE 1:2.5
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DETAIL B
DOUBLE-BEAT THROTTLE VALVE · SCALE 1:1
15
17
DETAIL C
SWIVEL COLLAR AND CRANK SLOT · SCALE 1:1
VIEW D
FROM ABOVE · 1:5
TURNING AT 1/20 SPEED
600 N·m
1300 N·m
0
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ENGINE SPEED n, rpm
SLEEVE LIFT x, mm
DIAGRAM 1
SOLID: GOVERNOR · DASHED: ENGINE AT LOAD · ACCENT: NOW
106
0
110
20
114
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118
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122
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126
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NOW
-4
-8
-12
-16
TIME, s
ENGINE n, rpm
VALVE f, %
DIAGRAM 2
ACCENT: ENGINE SPEED · THIN: VALVE OPENING · DASHED: LOAD, 100 = 2000 N·m
NOTES
1. PORTER, l = 150, e = 20: m·ω²·r = (m + M)·g·tan α, r = e + l·sin α.
2. BALLS m = 1.59 kg EACH, SLEEVE M = 6.24 kg. SPINDLE = 1.5 × ENGINE.
3. SLEEVE LIFT 0–47.7 AT 109.1–124.6 rpm ENGINE; VALVE SHUT AT FULL LIFT.
4. ENGINE J·dΩ/dt = T·f − LOAD − c·Ω: T 2400 N·m, J 600 kg·m², c 15.
5. DROOP: 600 N·m RUNS AT 117.7 rpm, 1300 N·m AT 114.2 rpm (3.0 %).
ITEM
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DESCRIPTION
GEAR CASE
DRIVE SHAFT Ø25
BEVEL WHEEL z30 m3
BEVEL PINION z20 m3
BUSH Ø25/32×24 ISO 4379
FLAT-BELT PULLEY Ø120×45
PARALLEL KEY 8×7 DIN 6885
SPINDLE Ø25
STOP COLLAR Ø44×14
HEAD
HEX NUT M20 ISO 4032
UPPER ARM 150 C/C
FLYBALL Ø75, 1.59 kg
LOWER LINK 150 C/C
PIN Ø10 ISO 2341-B
SLEEVE (LOAD) 6.2 kg
SWIVEL COLLAR, SPLIT
BELL CRANK 130/55, 120°
VALVE LINK 53 C/C
VALVE STEM Ø16
DOUBLE-BEAT VALVE Ø48/Ø56
SEAT RING Ø48, Ø56
VALVE BODY DN50
BONNET WITH FULCRUM POST
GLAND
PACKING RING 6 SQ
STUD M8×32 + NUT ISO 4032
HEX NUT M16 ISO 4032
MATERIAL
EN-GJL-250
C45
C45
C45
CuSn8
EN-GJL-200
C45
C45
C45
C45, FORGED
STEEL 8
C35
EN-GJL-200
C35
C45
EN-GJL-200
CuSn7Zn4Pb7
EN-GJS-400-15
C35
X20Cr13
CuSn10
CuSn10
EN-GJL-250
EN-GJL-250
CuZn39Pb3
PTFE/GRAPHITE
STEEL 8.8
A2-70
QTY
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TITLE
PORTER GOVERNOR · THROTTLE
DWG NO
BP-003
SCALE
1:2.5
SIZE
A2
SHEET
1 / 1
DRAWN
CLAUDE
DATE
2026-10-15
MATERIAL
SEE PARTS LIST
GENERAL TOL.
ISO 2768-m
UNITS
mm · rpm · N·m
LIVE · DRAG UP/DOWN FOR LOAD · ↑ ↓ LOAD · SPACE STEPS IT · S SLOW
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step light/heavy ·
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slow
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