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1. CN102257259 - Diesel engine, predetermined breaking point component therefor and method for preventing damage to a diesel engine

Office China
Application Number 200980150716.7
Application Date 16.12.2009
Publication Number 102257259
Publication Date 23.11.2011
Grant Number 102257259
Grant Date 16.10.2013
Publication Kind B
IPC
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
77
Component parts, details, or accessories, not otherwise provided for
08
Safety, indicating, or supervising devices
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
P
IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
11
Safety means for electric spark ignition, not otherwise provided for
02
Preventing damage to engines or engine-driven gearing
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
K
VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17
Safety valves; Equalising valves
02
opening on surplus pressure on one side; closing on insufficient pressure on one side
14
with fracturing member
F02B 77/08
F02P 11/02
F16K 17/14
CPC
F02B 77/08
Y10T 137/1729
Y10T 137/1744
Applicants 曼柴油机涡轮机欧洲股份公司曼柴油机涡轮机德国分公司
Inventors A·K·彼德森
Agents 中国国际贸易促进委员会专利商标事务所 11038
Priority Data 1020080639680 19.12.2008 DE
Title
(EN) Diesel engine, predetermined breaking point component therefor and method for preventing damage to a diesel engine
(ZH) 柴油机、用于柴油机的预定断裂构件以及用于避免柴油机损伤的方法
Abstract
(EN)
The invention relates to a diesel engine, particularly a two-stroke crosshead large diesel engine, comprising at least one combustion chamber (1), which is enclosed by a cylinder on multiple sides and by at least one upper side of at least one piston moving up and down in the cylinder, which form an outer wall (3; 103) for the combustion chamber (1), wherein the combustion chamber (1) comprises a predetermined breaking point (12) on the outer wall (3; 103) thereof. The invention is characterized in that the predetermined breaking point (12) is suited to protect the diesel engine against possible damage that can be caused by an undesirably high overpressure (py) of gases in the combustion chamber (1) during a malfunction of the diesel engine, wherein the predetermined breaking point (12) has a breaking point pressure (ps) below the overpressure (py) above which damages can be expected, and above a combustion chamber normal pressure (pn) provided at a maximum during normal engine operation conditions. The invention further relates to a predetermined breaking point component and to a method, wherein in order to prevent the damage, at least one predetermined breaking point component of said kind is provided in the outer wall of at least one combustion chamber and/or the diesel engine is designed according to the invention.

(ZH)

本发明涉及一种柴油机,特别是二冲程十字头大型柴油机,其包含至少一个燃烧室(1),所述燃烧室被一个气缸在多侧围住以及被至少一个在该气缸内来回运动的活塞的至少上面围住,它们构成燃烧室(1)的外壁(3;103),其中燃烧室(1)在其外壁(3;103)上具有预定断裂部位(12)。本发明的特征在于:预定断裂部位(12)适合于保护柴油机防止可能的损伤,所述损伤可能由于在柴油机的故障期间在燃烧室(1)中的气体的异常高的超压(py)引起,其中预定断裂部位(12)具有低于超压(py)的且高于一个在正常的柴油机运行条件下最大设定的燃烧室正常压力(pn)的预定断裂压力(ps),从该超压起可预期损伤。本发明此外涉及一种具有预定断裂部位的预定断裂构件和一种方法,其中为了防止损伤,在至少一个燃烧室的外壁中设置至少一个这样的预定断裂构件和/或根据本发明构成柴油机。