CN203374381U

CN203374381U - Crankcase mechanism of hybrid electric automobile engine

Info

Publication number: CN203374381U
Application number: CN201320334588.5U
Authority: CN
Inventors: 钟成; 雷正雨; 王红艳; 张勋; 弄策; 梁权; 李勇进; 宋伟
Original assignee: LIUZHOU WULINGLIU POWER CO Ltd
Current assignee: LIUZHOU WULINGLIU POWER CO Ltd
Priority date: 2013-06-09
Filing date: 2013-06-09
Publication date: 2014-01-01
Anticipated expiration: 2023-06-09

Abstract

The utility model relates to a crankcase mechanism of an automobile engine, in particular to a crankcase mechanism of a hybrid electric automobile engine. The crankcase mechanism comprises a cylinder body and a cylinder sleeve arranged on the inner side of the cylinder body, wherein an installing end face is arranged at the rear end of the cylinder body and is semicircular integrally, a cylinder body water jacket is arranged in the cylinder body outside the cylinder sleeve, and the depth h of the cylinder body water jacket is 40-50mm. The cylinder body and the cylinder sleeve are two components independent mutually, the cylinder body is an aluminum alloy cylinder body formed in a high-pressure casting mode, and the cylinder sleeve is a gray cast iron cylinder sleeve formed in a centrifugal casting mode. The crankcase mechanism of the hybrid electric automobile engine has the advantages of being simple in structure, capable of reducing frictional losses and engine oil consumption and reducing self weight of a product, low in cost and the like.

Description

The hybrid electric vehicle engine crankcase mechanism

Technical field

The utility model relates to a kind of automobile engine crankcase mechanism, particularly a kind of hybrid electric vehicle engine crankcase mechanism.

Background technique

Existing crankcase structure is as shown in Figure 4: on this crankcase profile, substantially body 6, the cylinder hole 7 that is positioned at the body upside, water jacket 8 and the back oil road 9 that is positioned at the outside, cylinder hole, consist of, whole crankcase is that the gray cast iron gravity casting forms.This existing crankcase has the following disadvantages: one, the water jacket of this design, back oil road are too complicated, the complex forming technology of crankcase, the flowing water line length, production environment is poor, the water jacket depth H is usually in the 90mm left and right, water-jacket space is larger, and when engine cold starting, starting and warming-up slow down, machine oil does not obtain sufficient preheating, and frictional loss increases; Its two, this crankcase ear end face structure is not suitable for assembling generator, if just design changeover mechanism in addition of generator need to be installed; Its three, because whole crankcase is all the moulding of gray cast iron gravity casting, and boundary dimension is larger, makes crankcase weight large, the complete-vehicle oil consumption variation.

The model utility content

The purpose of this utility model be to provide a kind of simple in structure, can reduce frictional loss and engine consumption, alleviate product deadweight, hybrid electric vehicle engine crankcase mechanism that cost is low.

The technological scheme that the utility model adopts for achieving the above object is: a kind of hybrid electric vehicle engine crankcase mechanism, comprise cylinder body and be arranged on the cylinder sleeve of cylinder body inboard, the rear end of described cylinder body is provided with the installation end face of whole semicircular in shape, be provided with cylinder body water jacket in the cylinder body in the described cylinder sleeve outside, the degree of depth h of this cylinder body water jacket is 40-50mm.

Further technological scheme of the present utility model is: described cylinder body and cylinder sleeve are two separate members, and described cylinder body is the aluminium alloy cylinder that squeeze casting forms, and described cylinder sleeve is the Gray Iron Cylinder that centrifugal casting forms.

The utility model hybrid electric vehicle engine crankcase mechanism has following beneficial effect:

1, the utility model hybrid electric vehicle engine crankcase mechanism, because the cylinder body water jacket degree of depth is 40-50mm, has cylinder body water jacket degree of depth decrease now, and the shallow water Analysis of Nested Design can promote warming-up, reduces discharge, reduces frictional loss and engine consumption;

2, the utility model hybrid electric vehicle engine crankcase mechanism is because the rear end of cylinder body is provided with the installation end face of whole semicircular in shape, the oil sump body rear end corresponding with crankcase also is provided with the installation end face of whole semicircular in shape, two semicircular installation end faces form a circular mounting end face, generator can directly be connected on the circular mounting end face, without the generator changeover mechanism is set in addition, the semicircular structure of rule is conducive to the manufacture of mould, can reduce the mould development time; Be conducive to the coupling of counterpart and installation etc., cost-saving;

3, the utility model hybrid electric vehicle engine crankcase mechanism is because cylinder body is the aluminium alloy cylinder that squeeze casting forms, cylinder sleeve is the Gray Iron Cylinder that centrifugal casting forms, this design not only can be saved cost of material, also make the production of crankcase cylinder body change the metal mold squeeze casting into from the green-sand gravity casting, simplified mould structure, reduced equipment investment, improved manufacturing efficiency, improved production environment, the use of Gray Iron Cylinder has solved the aluminium alloy cylinder intensity difference, not wear-resisting, the defect of mutability, thereby make part reduce complete machine weight under the prerequisite of guaranteed performance, improved the fuel economy of motor.

Below in conjunction with the drawings and specific embodiments, the utility model hybrid electric vehicle engine crankcase mechanism is further described.

The accompanying drawing explanation

Fig. 1 is the structural representation of the utility model hybrid electric vehicle engine crankcase mechanism;

Fig. 2 is the A-A direction sectional view (right side does not all illustrate) of Fig. 1;

Fig. 3 is the B direction view of Fig. 1;

Fig. 4 is the structural representation of prior art automobile engine crankcase.

Primary component label declaration: 1-cylinder body, 2-cylinder body water jacket, 3-cylinder sleeve, the rear end of 4-cylinder body, the semicircular installation end face of 5-.

Embodiment

As shown in Figure 1 to Figure 3, the utility model hybrid electric vehicle engine crankcase mechanism, comprise cylinder body 1 and be arranged on the cylinder sleeve 3 of cylinder body 1 inboard, the rear end 4 of described cylinder body is provided with the installation end face 5 of whole semicircular in shape, be provided with cylinder body water jacket 2 in the cylinder body 1 in described cylinder sleeve 3 outsides, the degree of depth h of this cylinder body water jacket 2 is 40-50mm, and the degree of depth h of cylinder body water jacket 2 is 45 mm in the present embodiment.Described cylinder body 1 and cylinder sleeve 3 are two separate members, and described cylinder body 1 is the aluminium alloy cylinder that squeeze casting forms, and cylinder body is to use aluminum alloy material to adopt the mode of squeeze casting to cast formation.The Gray Iron Cylinder that described cylinder sleeve 3 forms for centrifugal casting, cylinder sleeve is to use gray cast iron material to adopt the mode of centrifugal casting to cast formation.

The definite of cylinder body water jacket 2 degree of depth is definite by the upper-lower position (being crank angle) of piston, adopts the shallow water Analysis of Nested Design can promote warming-up, reduces discharge, reduces frictional loss and engine consumption; The semicircle of crankcase rear end is installed end face, with the semicircle of oil sump body rear end, the common composition of end face (not shown) one large circular mounting end face (flanged surface) is installed, and is conducive to coordinating of crankcase and generator, plays good mating reaction; Adopt the mode cast aluminium alloy cylinder body of squeeze casting, reduce on the one hand weight, guarantee on the one hand the quality of product when controlling wall thickness, the use of Gray Iron Cylinder has solved aluminium alloy cylinder intensity difference, not wear-resisting defect.

Claims

1. a hybrid electric vehicle engine crankcase mechanism, comprise cylinder body (1) and be arranged on the inboard cylinder sleeve (3) of cylinder body (1), it is characterized in that, the rear end of described cylinder body (4) is provided with the installation end face (5) of whole semicircular in shape, be provided with cylinder body water jacket (2) in the cylinder body (1) in described cylinder sleeve (3) outside, the degree of depth h of this cylinder body water jacket (2) is 40-50mm.

2. hybrid electric vehicle engine crankcase mechanism as claimed in claim 1, it is characterized in that, described cylinder body (1) and cylinder sleeve (3) are two separate members, the aluminium alloy cylinder that described cylinder body (1) forms for squeeze casting, the Gray Iron Cylinder that described cylinder sleeve (3) forms for centrifugal casting.