A general-purpose laboratory oil system for single-cylinder and multi-cylinder diesel engines
A diesel engine and laboratory technology, applied in the field of diesel engine testing, can solve problems such as limiting the scope of use of the laboratory, and achieve the effect of expanding the scope of use
Active Publication Date: 2019-09-06
CHINA NORTH ENGINE INST TIANJIN
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Problems solved by technology
[0002] When the diesel engine is tested on the bench, it is necessary for the laboratory to provide a special oil system to control the temperature and pressure of the diesel engine oil. The oil system plays the role of cooling the diesel engine oil during the test, and the diesel engine circulates the oil through the oil temperature and oil pressure control system. Always keep within a certain temperature and pressure range to ensure that the diesel engine works under normal heat load; in the daily test process, due to the differences in the structure and composition of single-cylinder diesel engines and multi-cylinder diesel engines, often the oil system in the laboratory cannot meet the requirements at the same time. For the test requirements of single-cylinder diesel engine and multi-cylinder diesel engine, only one kind of diesel engine bench test can be carried out, which limits the scope of use of the laboratory
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[0014] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0015] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0016] Such as figure 1 As shown, a general-purpose laboratory oil system for single-cylinder and multi-cylinder diesel engines includes a diesel engine 19 and an oil tank 20. The outlet b of the oil tank 20 is connected to the inlet c of the diesel engine 19 through a pipeline through the third ball valve 3 and the sixth ball valve 6. , the inlet c of the oil tank 20 is connected to the pipeline between the first ball valve 1 and the oil inlet pump 17 and the oil inlet filter 18 through a pipeline, and the inlet d of the oil tank 20 is connected to the outlet c of the electric proportional valve 16 through a pipeline, The outlet branch pipe between the outlet b of the oil tank 20 and t...
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The invention provides a universal test room machine oil system for single-cylinder and multi-cylinder diesel engines. The machine oil system comprises a diesel engine and a machine oil tank, an outlet b of the machine oil tank is connected with an inlet c of the diesel engine, the inlet c is connected with a pipeline between an oil-feed pump and an oil-feed filter, an inlet d is connected with anoutlet c of an electric proportional valve, and an outlet b is connected with an outlet branch pipe between three spherical valves; an outlet b of the diesel engine is connected with an inlet c of aheat changer; an outlet branch pipe between an eighth spherical valve and a ninth spherical valve is connected with a pipeline between the ninth spherical valve and an oil return filter through a pipeline and an oil return pump, an outlet branch pipe between the oil return filter and the inlet c of the heat changer is connected with an inlet b of the electric proportional valve, an outlet b of theheat changer is connected with an inlet a of the electric proportional valve, an inlet a of the heat changer is connected with inlet water of external water, and an outlet d of the heat changer is connected with return water of the external water. The system has the advantages that control requirements of the single-cylinder and multi-cylinder diesel engines to machine oil pressure and temperatures in the testing process are met, and the functions of preoiling for the diesel engines and automatic oil supplementing of the system are achieved.
Description
technical field [0001] The invention belongs to the technical field of diesel engine testing, and in particular relates to a general laboratory oil system for single-cylinder and multi-cylinder diesel engines. Background technique [0002] When the diesel engine is tested on the bench, it is necessary for the laboratory to provide a special oil system to control the temperature and pressure of the diesel engine oil. The oil system plays the role of cooling the diesel engine oil during the test, and the diesel engine circulates the oil through the oil temperature and oil pressure control system. Always keep within a certain temperature and pressure range to ensure that the diesel engine works under normal heat load; in the daily test process, due to the differences in the structure and composition of single-cylinder diesel engines and multi-cylinder diesel engines, often the oil system in the laboratory cannot meet the requirements at the same time. For the test requirements ...
Claims
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IPC IPC(8): G01M15/02
Inventor 王文李全陈东峰刘新华张探军胡睿杰
Owner CHINA NORTH ENGINE INST TIANJIN