EP0171882A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Turbocompound engine having power turbine output connected to the timing gear
Assignee: Caterpillar Inc
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Filing: 1985-06-05
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Granted: —
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Expires: 2005-06-05
Abstract
Abstract @ The invention comprises a turbocompound engine (10) in which power is fed into the timing gears (16,18,20) of the engine (10). The mechanism for transmitting power (30) includes a driving mechanism (32), a fluid coupler mechanism (34) and a connecting mechanism (36) attached to the timing gears (16, 18, 20). Thus the disclosed invention uses existing timing gears (16,18,20) which are already machined and designed for continual load carrying capacity. The compound portion of the turbocompound engine (10) is located near the front and top of the engine allowing for excellent maintenance and serviceability.
Inventors
- 👤 Donald E. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 16:16
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/005; F02B41/00; F02B41/02; F02B41/10; F02B67/00; F02B67/10; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
86 words
In an engine (10) including a crankshaft (12), a camshaft (14), a plurality of timing gears (16, 18, 20) drivingly connecting the crankshaft (12) - with the camshaft (14), a turbocharger (22) driven by exhaust from the engine (10), and a turbine (28) positioned in the flow path of the exhaust exiting the turbocharger (22) to be driven thereby, the improvement comprising: means (30) for transmitting power from the turbine (28) to the crankshaft by driving connection with one of the plurality of timing gears (16,18,20).
Claim 2
Dependent Claim
86 words
In an engine (10) including a crankshaft (12), a camshaft (14), a plurality of timing gears (16, 18, 20) drivingly connecting the crankshaft (12) - with the camshaft (14), a turbocharger (22) driven by exhaust from the engine (10), and a turbine (28) positioned in the flow path of the exhaust exiting the turbocharger (22) to be driven thereby, the improvement comprising: means (30) for transmitting power from the turbine (28) to the crankshaft by driving connection with one of the plurality of timing gears (16,18,20).
Claim 3
Dependent Claim
15 words
The engine (10) of claim 1 wherein said turbine (28) is an axial turbine (30).
Claim 4
Dependent Claim
54 words
The engine (10) of claim 1 wherein said means (30) for transmitting power includes a driving mechanism (32) connected to the turbine (28), a fluid coupler mechanism (34) connected to the driving mechanism (32) and means (36) for connecting the fluid coupler mechanism (38) to said one of the plurality of timing gears (16,18,20).
Claim 5
Dependent Claim
55 words
The engine (10) of claim 3 wherein said means (36) for connecting includes a shaft (66) connected to the fluid coupler mechanism (34), and a gear (68) attached to the shaft (66) at the end opposite the fluid coupler mechanism (34), said gear (68) meshing with said one of the plurality of timing gears (16,18,20).
Claim 6
Dependent Claim
34 words
The engine (10) of claim 3 wherein said means (36) for connecting includes a clutch mechanism (70) located between the fluid coupler mechanism (34) and said one of the plurality of timing gears (16,18,20).
Claim 7
Dependent Claim
15 words
The engine (10) of claim 5 wherein said clutch mechanism (70) is a one-way clutch.
Claim 8
Dependent Claim
50 words
The engine (10) of claim 3 wherein said driving mechanism (32) includes a shaft (38) connected at one end to the turbine (28), a gear (40) attached to the other end of the shaft (38), a housing (42), and means (44) for supporting the shaft (38) in the housing (42).
Claim 9
Dependent Claim
26 words
The engine (10) of claim 7 wherein said means (44) for supporting the shaft (38) in the housing (42) includes a pair of roller bearings (46,48).
Claim 10
Dependent Claim
66 words
The engine (10) of claim 8 wherein one (46) of said pair of bearings is located near the turbine (28) and the other bearing (48) is located near the gear (40), said one bearing (46) being supported in the housing (42) by the squeeze film method, and said supporting means (44) includes a wave washer (50) located between the other bearing (48) and the housing (42).
Claim 11
Dependent Claim
67 words
The engine (10) of claim 3 wherein said fluid coupler mechanism (34) includes a fluid coupler (58), a gear (60) attached to one end of the fluid coupler (58) and connected to the driving mechanism (32), a housing (62) surrounding the fluid coupler (58)-and the gear (60), and a pair of bearings (64) located in the housing (62) supporting the fluid coupler (58) and the gear (60).
Claim 12
Dependent Claim
23 words
ll. The engine (10) of claim 3 wherein said one of the plurality of timing gears is an accessory water pump gear (16).
References Cited (Backward Citations)
USRE15769E
Cited
FR471200A
Cited
US1520942A
Cited
DE952851C
Cited
GB866017A
Cited
US3050932A
Cited
GB2082682A
Cited
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