Engine and construction machinery having the same

An engine and transmission structure technology, applied in engine components, machines/engines, liquid fuel engines, etc., can solve problems such as low energy conversion efficiency of engines and hydraulic pumps, improve energy conversion efficiency, solve low energy conversion efficiency, shorten energy The effect of the drive chain

Active Publication Date: 2022-07-29
SANY HEAVY MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect of low energy conversion efficiency of the engine and hydraulic pump in the prior art, thereby providing an engine and a construction machine with it

Method used

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  • Engine and construction machinery having the same
  • Engine and construction machinery having the same

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Embodiment Construction

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must hav...

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Abstract

The invention provides an engine and a construction machine having the same, wherein the engine comprises: a cylinder; a plurality of piston chambers, which are arranged in the cylinder, each piston chamber is provided with a piston, and a space between the piston chamber and the piston is enclosed A combustion chamber is formed, and the piston is suitable for reciprocating movement in the piston cavity; a plurality of hydraulic pump cores are fixedly arranged in the cylinder and located outside the piston, a plurality of hydraulic pump cores and a plurality of piston cavities are set in one-to-one correspondence, and the hydraulic valve cores are arranged in a one-to-one correspondence. The pump oil chamber is enclosed with the piston. The hydraulic pump core has an oil inlet channel and an oil discharge channel. The outlet of the oil inlet channel and the inlet of the oil discharge channel are connected with the pump oil chamber; The pistons are connected, and the transmission structure is suitable for making a plurality of pistons move in linkage. The technical solution of the present invention solves the defect of low energy conversion efficiency of the engine and the hydraulic pump in the prior art.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to an engine and a construction machinery having the same. Background technique [0002] Excavation equipment (such as excavator) is a non-road mobile machine. The driving method of its working device is as follows: the central shaft of the hydraulic pump (large excavation equipment usually adopts a plunger pump) is driven to rotate by a diesel engine, and the hydraulic pump generates oil pressure, thereby affecting the work. The device provides power. In this process, the engine mixed gas compression ignition works on the piston, and the reciprocating motion of the piston is converted into the rotational motion of the crankshaft through the crank connecting rod mechanism composed of the piston, the connecting rod and the crankshaft. The rotational motion of the crankshaft is transmitted to the central shaft of the plunger pump, which in turn makes the plunger pump w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B63/06F02B75/18F02B75/28F02B75/32F02F1/18F02F3/00F04B17/05F04B1/02F04B3/00F04B53/14
CPCF02B63/06F02B75/18F02B75/28F02B75/32F02F1/186F02F3/00F04B17/05F04B1/02F04B3/00F04B53/14F02B2075/1808
Inventor 王喆宋国文陈素梅
Owner SANY HEAVY MACHINERY
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