US3710774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lube oil pump drive for balancer
Assignee: Deutz Allis Corp
•
Filing: 1970-10-26
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Granted: 1973-01-16
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Expires: 1990-10-26
Abstract
Abstract An engine balancer for a four cylinder in line internal combustion engine for balancing secondary vibration.
Inventors
- 👤 R Weseloh
- 👤 W Whaley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:47
CPC Classifications
F; F02; F02B; F02B67/00; F02B67/04; F01; F01M; F01M1/00; F01M1/02; F16; F16F; F16F15/00; F16F15/22; F16F15/26; F16F15/264; F16F15/267; F02B75/00; F02B75/16; F02B75/18; F02B2075/1804; F02B2075/1816; F02B75/20; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2173; Y10T74/2183; Y10T74/2184
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
169 words
An engine balancer for a four cylinder in line engine comprising, a crankshaft with the crank arms lying in a common plane, means rotatably supporting said crankshaft for rotating on an axis of rotation, an oil lubrication pump including a pair of gears mounted for rotation about axes parallel with the axis of rotation of said crankshaft and mounted at the end of said crankshaft, gears connected to said crankshaft and said pump driving said pair of gears at twice the speed of the crankshaft, a counterweight adjacent said crankshaft defining an eccentric portion extending for substantially the length of said crankshaft connected to each gear of said pair of gears, bearing means supporting said counterweights at intervals along the length of said counterweights, means for driving said eccentric portion of the first of said counterweights for rotating at 180* out of phase with said eccentric portion of the second counterweight and each of said counterweights rotating at twice the crankshaft speed for counterbalancing secondary unbalance of said engine.
Claim 2
Dependent Claim
169 words
An engine balancer for a four cylinder in line engine comprising, a crankshaft with the crank arms lying in a common plane, means rotatably supporting said crankshaft for rotating on an axis of rotation, an oil lubrication pump including a pair of gears mounted for rotation about axes parallel with the axis of rotation of said crankshaft and mounted at the end of said crankshaft, gears connected to said crankshaft and said pump driving said pair of gears at twice the speed of the crankshaft, a counterweight adjacent said crankshaft defining an eccentric portion extending for substantially the length of said crankshaft connected to each gear of said pair of gears, bearing means supporting said counterweights at intervals along the length of said counterweights, means for driving said eccentric portion of the first of said counterweights for rotating at 180* out of phase with said eccentric portion of the second counterweight and each of said counterweights rotating at twice the crankshaft speed for counterbalancing secondary unbalance of said engine.
Claim 3
Dependent Claim
38 words
An engine balancer for a four cylinder in line engine having a crankshaft with crank arms lying in a common plane as set forth in claim 1 wherein said counterweights define shafts rotating eccentrically for balancing said engine.
Claim 4
Dependent Claim
66 words
An engine balancer for a four cylinder in line engine having a crankshaft with the crank arms lying in a common plane as set forth in claim 1 including means defining an engine oil compartment receiving said counterweight, said counterweights define a sleeve having a weighted portion on one side of said sleeve to form enclosed counterweights to avoid splashing of oil in the oil compartment.
Claim 5
Dependent Claim
67 words
An engine balancer for a four cylinder in line engine having a crankshaft with crank arms lying in a common plane as set forth in claim 1 including said oil lubrication pump, said gears driving said pair of gears includes an idler gear driven by a crankshaft gear and driving said pair of gears of said oil pump whereby said counterweights are driven through said lubrication pump.
Claim 6
Dependent Claim
52 words
An engine balancer for a four cylinder in line engine having a crankshaft with crank arms lying in a common plane as set forth in claim 1 including a filled bearing housing receiving said counterweights defining a thin wall between said counterweights to thereby provide parallel close center relationship of said counterweights.
Claim 7
Dependent Claim
51 words
An engine balancer for a four cylinder in line engine having a crankshaft with crank arms lying in a common plane as set forth in claim 1 wherein an engine lubricating system is connected to said lubrication pump and connected to said bearing means to provide lubrication of the counterweight bearings.
Claim 8
Dependent Claim
56 words
An engine balancer for a four cylinder in line engine having a crankshaft with crank arms lying in a common plane as set forth in claim 1 wherein said gears connecting said counterweights synchronously rotate said counterweights in opposite directions to neutralize the counterbalancing forces in a horizontal plane and overcoming unbalance in a vertical plane.
Claim 9
Dependent Claim
48 words
An engine balancer for a four cylinder in line engine having a crankshaft with crank arms lying in a common plane as set forth in claim 1 including means positioning intersecting pitch diameter of each of said pumping gears on a vertical axis coincidental with the crankshaft axis.
Claim 10
Dependent Claim
74 words
An engine balancer for a four cylinder in line engine having a crankshaft with crank arms lying in a common plane as set forth in claim 1 including means connecting said counterweights for coaxial rotation with said pumping gears, means positioning said lubrication pump in the forward end on the lower side of said engine, said counterweights thereby extending on the underside of said engine to counteract vertical secondary unbalance forces of said engine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |