CN203050822U

CN203050822U - Universal gasoline engine gas distribution camshaft

Info

Publication number: CN203050822U
Application number: CN 201220701887
Authority: CN
Inventors: 陶永文
Original assignee: CHONGQING JINQIAO MACHINE MANUFACTURING CO LTD
Current assignee: CHONGQING JINQIAO MACHINE MANUFACTURING CO LTD
Priority date: 2012-12-18
Filing date: 2012-12-18
Publication date: 2013-07-10
Anticipated expiration: 2022-12-18

Abstract

The utility model discloses a universal gasoline engine gas distribution camshaft which comprises an air inlet cam (2) and an air exhaust cam (3), wherein the air inlet cam (2) and the air exhaust cam (3) are fixedly arranged on a camshaft body (1) respectively. Through the improvement of lift parameters of the air exhaust cam (3) and the air inlet cam (2), the emission of an engine can meet third-stage emission standards of the Environmental Protection Agency (EPA) of the USA.

Description

A kind of general-purpose petrol engine distribution cam axle

Technical field

The utility model relates to a kind of petrol engine distribution device, particularly a kind of general-purpose petrol engine distribution cam axle.

Background technique

The valve cam that the intake and exhaust of internal-combustion engine are used and molded lines thereof, be related to the combustion noise of cam fullness coefficient, inflation performance, internal-combustion engine output power, torque output of combustion engine, oil consumption, internal-combustion engine etc., directly determine fuel oil whether composition and the concentration of harmful gas in sufficient combustion, the exhaust emissions.Along with the raising of environmental consciousness and country adopt the exhaust emission standard of higher strictness, as the Europe III of automobile, motorcycle etc., popularization and the mandatory adoption of Europe IV emission standard, the overall performance of internal-combustion engine there is further requirement.

As the logical machine petrol engine of 140 types of the prior art, for the end put, 2 air valve engines, the discharge capacity of motor is 140mL, motor can not reach U.S. EPA phase III emission standard.

The model utility content

The purpose of this utility model just provides a kind of general vapour engines distribution cam axle that can make the engine emission that disposes this camshaft reach U.S. EPA phase III emission standard.

The purpose of this utility model is to realize that by such technological scheme a kind of general-purpose petrol engine distribution cam axle comprises the intake cam and the exhaust cam that are fixedly installed on respectively on the camshaft, described exhaust cam rotate a circle lift such as following table:

Angle (°)	Lift range value (mm)	Angle (°)	Lift range value (mm)	Angle (°)	Lift range value (mm)	Angle (°)	Lift range value (mm)
								0	0	95	0.06	185	5.29	275	0
5	0	100	0.126	190	5.008	280	0
								10	0	105	0.192	195	4.559	285	0
15	0	110	0.259	200	3.97	290	0
								20	0	115	0.345	205	3.314	295	0
25	0	120	0.475	210	2.678	300	0
								30	0	125	0.664	215	2.109	305	0
35	0	130	0.922	220	1.622	310	0
								40	0	135	1.255	225	1.218	315	0
45	0	140	1.667	230	0.893	320	0
								50	0	145	2.162	235	0.642	325	0
55	0	150	2.739	240	0.459	330	0
								60	0	155	3.38	245	0.335	335	0
65	0	160	4.034	250	0.252	340	0
								70	0	165	4.611	255	0.186	345	0
75	0	170	5.044	260	0.12	350	0
								80	0	175	5.308	265	0.054	355	0
85	0	180	5.392	270	0.01	360	0
								90	0.012

Described intake cam rotate a circle lift such as following table:

Angle (°)	Lift range value (mm)	Angle (°)	Lift range value (mm)	Angle (°)	Lift range value (mm)	Angle (°)	Lift range value (mm)
								0	0	95	0	185	5.112	275	0
5	0	100	0	190	4.149	280	0
								10	0	105	0.004	195	3.276	285	0
15	0	110	0.037	200	2.532	290	0
								20	0	115	0.1	205	1.914	295	0
25	0	120	0.166	210	1.411	300	0
								30	0	125	0.233	215	1.012	305	0
35	0	130	0.321	220	0.706	310	0
								40	0	135	0.464	225	0.482	315	0
45	0	140	0.68	230	0.332	320	0
								50	0	145	0.977	235	0.24	325	0
55	0	150	1.367	240	0.173	330	0
								60	0	155	1.859	245	0.107	335	0
65	0	160	2.465	250	0.043	340	0
								70	0	165	3.196	255	0.005	345	0
75	0	170	4.057	260	0	350	0
								80	0	175	5.016	265	0	355	0
85	0	180	5.733	270	0	360	0
								90	0

Owing to adopted technique scheme, the utlity model has following advantage: adopt camshaft of the present utility model, make engine emission reach U.S. EPA phase III emission standard.

Description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is camshaft structure schematic representation of the present utility model;

Fig. 2 is the left side view of intake cam;

Fig. 3 is the left side view of exhaust cam.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail; but the utility model is not limited to these mode of executions; any on the present embodiment essence spirit improvement or substitute, still belong to the utility model claim scope required for protection.

Embodiment 1: do further statement below in conjunction with accompanying

drawing

1,2,3 pairs of the utility model:

A kind of general-purpose petrol engine distribution cam axle comprises the intake cam 2 and the exhaust cam 3 that are fixedly installed on respectively on the camshaft 1, described exhaust cam 3 rotate a circle lift such as following table:

As shown in Figure 1, 2, rotate a circle lift such as following table of described intake cam 2:

Camshaft through after improving makes engine emission reach U.S. EPA phase III emission standard, meets environmental protection requirement, has improved the competitiveness of product in market.

The utility model mainly applies on the RV140 Engine Series.

Claims

1. a general-purpose petrol engine distribution cam axle comprises the intake cam (2) and the exhaust cam (3) that are fixedly installed on respectively on the camshaft (1), it is characterized in that: described exhaust cam (3) rotate a circle lift such as following table:

。

2. general-purpose petrol engine distribution cam axle as claimed in claim 1 is characterized in that: described intake cam (2) rotate a circle lift such as following table:

。