IP Library Granted Patent US 12,188,430
Granted Patent B2
US 12,188,430 · App. 17/640,528 · Granted Jan 7, 2025

Crankcase for an internal combustion engine, and internal combustion engine

Inventors: Jörn Wildhagen (Ravensburg, DE); Artur Hunger (Oberteuringen, DE); Martin Gebhardt (Markdorf, DE)
Assignee: Rolls-Royce Solutions GmbH
F02F1/14F01P3/02F02F1/242F02F1/40
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Quick Facts
Patent No.
US 12,188,430
App. No.
17/640,528
Granted
Jan 7, 2025
Kind
B2
Abstract

A crankcase includes: at least one cylinder for an internal combustion engine, the cylinder including: a cylinder interior; a cylinder liner which is arranged within the cylinder interior; a cylinder head which closes the cylinder interior, wherein the cylinder head includes a receiving way; a cooling system which guides a coolant flow and has a cooling chamber; a distribution system to separate the coolant flow into a primary partial flow and at least one secondary partial flow, the distribution system including a main channel for the primary partial flow and at least one branch-off passage for the at least one secondary partial flow, the at least one branch-off passage branching off from the main channel and being arranged transversely to the main channel for the at least one secondary partial flow.

Claims (25)

1. A crankcase, comprising:

at least one cylinder for an internal combustion engine, the cylinder including:

a cylinder interior;

a cylinder liner which is arranged within the cylinder interior;

a cylinder head which closes the cylinder interior, wherein the cylinder head includes a receiving way;

a cooling system which guides a coolant flow and has a cooling chamber;

a distribution system to separate the coolant flow into a primary partial flow and at least one secondary partial flow, the distribution system including a main channel for the primary partial flow and at least one branch-off passage for the at least one secondary partial flow, the at least one branch-off passage branching off from the main channel and being arranged transversely to the main channel for the at least one secondary partial flow, wherein the distribution system includes a plurality of distribution sections and the at least one branch-off passage includes a plurality of the at least one branch-off passage, wherein a respective one of the plurality of distribution sections is fluidically connected with a respective one of the plurality of the at least one branch-off passage, the plurality of the at least one branch-off passage being arranged transversely to a longitudinal axis of the cylinder, the main channel being positioned entirely external to the cylinder head.

2. The crankcase of claim 1 , wherein the receiving way at least one of includes and guides one of a receiving sleeve and a receiving bushing for one of a device and a component which extends into the cylinder, wherein one of the device and the component is one of an injector and an ignition device.

3. The crankcase according to claim 1 , wherein the cylinder liner includes a top-liner region and a residual region, the distribution system is configured for supplying the at least one secondary partial flow to the top-liner region that is located closer to the cylinder head and is configured for supplying the primary partial flow to the residual region located further removed from the cylinder head.

4. The crankcase according to claim 1 , wherein the cylinder head includes a flame deck, the cooling system includes a supply passage configured for feeding the coolant flow along the receiving way onto the flame deck of the cylinder head in such a way that an impingement flow occurs on the flame deck.

5. The crankcase according to claim 1 , wherein the cylinder liner includes at least one cooling zone, the at least one branch-off passage being fluidically connected with the at least one cooling zone of the cylinder liner.

6. The crankcase according to claim 1 , wherein the plurality of distribution sections includes a first distribution section and a second distribution section, the first distribution section having a first cross-section that is smaller than a second cross-section of the second distribution section arranged upstream in a flow direction of the coolant flow.

7. The crankcase according to claim 6 , wherein the first cross-section and the second cross-section are each round.

8. The crankcase according to claim 1 , wherein the distribution system is arranged in a flow direction after the cylinder head.

9. The crankcase according to claim 1 , wherein one of the distribution system and a branch of the crankcase is arranged in a flow direction before of the cylinder head.

10. The crankcase according to claim 1 , further including a supply passage which is arranged concentrically around the receiving way.

11. The crankcase according to claim 1 , further including a supply passage, the supply passage and the receiving way for one of an injector and an ignition device together form a nozzle having an annular cross-section.

12. An internal combustion engine system, comprising:

an internal combustion engine including a crankcase, which includes:

at least one cylinder for the internal combustion engine, the cylinder including:

a cylinder interior;

a cylinder liner which is arranged within the cylinder interior;

a cylinder head which closes the cylinder interior, wherein the cylinder head includes a receiving way;

a cooling system which guides a coolant flow and has a cooling chamber;

a distribution system to separate the coolant flow into a primary partial flow and at least one secondary partial flow, the distribution system including a main channel for the primary partial flow and at least one branch-off passage for the at least one secondary partial flow, the at least one branch-off passage branching off from the main channel and being arranged transversely to the main channel for the at least one secondary partial flow, wherein the distribution system includes a plurality of distribution sections and the at least one branch-off passage includes a plurality of the at least one branch-off passage, wherein a respective one of the plurality of distribution sections is fluidically connected with a respective one of the plurality of the at least one branch-off passage, the plurality of the at least one branch-off passage being arranged transversely to a longitudinal axis of the cylinder, the main channel being positioned entirely external to the cylinder head.

Assignments (2)
CHANGE OF NAME Recorded Jul 25, 2022
From: MTU FRIEDRICHSHAFEN GMBH
To: ROLLS-ROYCE SOLUTIONS GMBH
Reel/Frame 060907/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2022
From: WILDHAGEN, JÖRN; HUNGER, ARTUR; GEBHARDT, MARTIN
To: MTU FRIEDRICHSHAFEN GMBH
Reel/Frame 060596/0559 →
Priority Claims (1)
DE 10 2019 123 878.1 · Sep 5, 2019 · national
Continuity (1)
Related Publication 20220316418A1 · Oct 6, 2022
References Cited (19)
US 4046114A · Hamparian · 1977 [cited by examiner]
US 5176113A · Hama et al. · 1993 [cited by applicant]
US 5207189A · Kawauchi et al. · 1993 [cited by applicant]
US 5211137A · Kawauchi et al. · 1993 [cited by applicant]
US 9797293B2 · Maki et al. · 2017 [cited by applicant]
US 20100132639A1 · Pöschl et al. · 2010 [cited by applicant]
US 20120291726A1 · Galeazzi et al. · 2012 [cited by applicant]
US 20150211408A1 · Maier · 2015 [cited by examiner]
US 20160298522A1 · Ekman et al. · 2016 [cited by applicant]
US 20180347443A1 · Boehmer et al. · 2018 [cited by applicant]
AT 005939U1 · 2003 [cited by applicant]
CN 103953453A · 2014 [cited by applicant]
CN 106988851A · 2017 [cited by applicant]
DE 3226880A1 · 1984 [cited by applicant]
DE 102005031243B4 · 2017 [cited by applicant]
SU 699219 · 1979 [cited by applicant]
SU 1456620A1 · 1989 [cited by applicant]
WO 2016027012A1 · 2016 [cited by applicant]
International Search Report and Written Opinion dated Nov. 24, 2020 for International Application No. PCT/EP2020/074794 (12 pages). [cited by applicant]