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Air distribution system for hydraulic free piston engine and method thereof

A piston engine, free technology, applied in the direction of engine components, machines/engines, non-mechanically actuated valves, etc., can solve the problems of engines without and without rotating mechanisms, achieve the effect of avoiding rotating parts and improving inflation efficiency

Inactive Publication Date: 2009-07-08
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main difference in structure from the traditional crankshaft engine is that the engine does not have a crank connecting rod mechanism, that is, there is no rotating mechanism

Method used

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  • Air distribution system for hydraulic free piston engine and method thereof
  • Air distribution system for hydraulic free piston engine and method thereof
  • Air distribution system for hydraulic free piston engine and method thereof

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Embodiment Construction

[0031] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0032] The general idea of ​​the present invention is to replace the driving force of the cam on the camshaft in the traditional gas distribution mechanism by using the hydraulic plunger driven by hydraulic pressure to move according to a certain law in the plunger sleeve, and the movement law of the hydraulic plunger It is realized by the action of the switching solenoid valve connected in series in the hydraulic circuit.

[0033] figure 1 It is a schematic diagram of the gas distribution system in the specific embodiment of the present invention. Such as figure 1 As shown, the hydraulic oil source system 1 can be generated by the output hydraulic energy of the hydraulic free piston engine, and the switching solenoid valve 2 and the switching solenoid valve 3 are respectively connected to the hyd...

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Abstract

The invention discloses a gas distribution system and method for a hydraulic free piston engine. The oil inlet oil passage and the oil outlet oil passage are respectively connected with the hydraulic oil source system, and the first and second switching solenoid valves and the plunger sleeve are installed on the On the machine body, the first switch solenoid valve is connected with the oil inlet passage and the third oil passage respectively, the second switch solenoid valve is respectively connected with the oil outlet passage and the third oil passage, and the third oil passage is connected with the oil passage inside the plunger sleeve. The channel is connected, the plunger is installed in the plunger sleeve, the plunger corresponds to the tappet roller, the push rod is placed in the tappet, the push rod is connected to the rocker arm through the hinge, the rocker arm is connected to the valve bridge, and the valve bridge is connected to two valves. A valve spring is respectively ferruled on the valve. By adopting the technical solution of the invention, not only can the valve be driven without using rotating parts, but also the charging efficiency of the engine can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a gas distribution system and method for a hydraulic free-piston engine. Background technique [0002] The traditional gas distribution mechanism is driven by the engine crankshaft through the timing gear to rotate the valve camshaft, and the cam on the valve camshaft drives the valve train to move, thereby driving the valve group to move. The opening and closing process of this valve mechanism valve is guaranteed by the cam profile on the camshaft, and the opening and closing timing of the valve is completed by the accurate positioning of a pair of timing gears on the crankshaft and the camshaft. [0003] The electronically controlled hydraulically driven camless valve train is invented on the basis of a new type of power device—hydraulic free piston engine. The hydraulic free piston engine is a new type of engine that integrates a reciprocating piston internal combustion engin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L9/02F01L9/10F01L9/40
Inventor 赵长禄张付军赵振峰黄英刘波澜吴思进
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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