CN2069494U

CN2069494U - Air compressor piston for car

Info

Publication number: CN2069494U
Application number: CN 90214066
Authority: CN
Inventors: 王桂兰
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-07-05
Filing date: 1990-07-05
Publication date: 1991-01-16

Abstract

The utility model relates to an air compressor piston for a car. Since the piston skirt which is vertical to the piston pin seat is processed with two symmetrical and inwards concave steps 1, the lower edging of which and the two pairs of angles point are processed with through holes 2; the lowest end of the piston skirt which is vertical to the piston pin seat is processed with two symmetrical openings 3. The weight of the piston is reduced; the friction area is reduced; accordingly, the reciprocating inertia force of the piston can be reduced; the effective power for consuming engines is less, and the mechanical noise is reduced.

Description

Air compressor piston for car

The utility model relates to a kind of vehicle air compressor piston.

Present employed vehicle air compressor piston, because weight is big, the friction area is big, reciprocal inertia force is big, and the useful horsepower of consumption of engine is many, and mechanicalness noise is big.

The purpose of this utility model is: provide a kind of piston weight light, the friction area is little, thereby the reciprocal inertia force of piston is reduced, and consumption of engine useful horsepower is few, the vehicle air compressor piston that mechanicalness noise reduces.

The utility model is achieved in that on the piston skirt of vertical piston key seat position, processes the step that falls in 1 of two symmetries; In the step that falls in 1 lower edge that processes two symmetries, place, two diagonal angles processes through hole 2; Process the opening 3 of two symmetries bottom in the piston skirt of vertical piston pin position seat.

The utility model has the advantages that: owing to make the weight saving of piston, the friction area is little, and the reciprocal inertia force of piston reduces, and consumption of engine useful horsepower is few, and mechanicalness noise reduces.

Below in conjunction with accompanying drawing, the utility model is described further with embodiment:

Fig. 1 is former vehicle air compressor piston;

Fig. 2 is the utility model vehicle air compressor piston.

Among Fig. 2, the step that 1-falls in, 2-through hole, 3-opening.

Because the utility model on the piston skirt of vertical piston key seat position, processes the step that falls in 1 of two symmetries; Process through hole 2 at the place, two diagonal angles, the step that falls in 1 lower edge that processes two symmetries; Process the opening 3 of two symmetries in the piston skirt of vertical piston key seat position bottom, make piston weight alleviate 10～15%, reduce piston skirt area 50～60%, the air compressor oil consumption reduces by 2%, reduces power consumpiton 5～8%.

Claims

1, vehicle air compressor piston is characterized in that: on the piston skirt of vertical piston key seat position, process the step that falls in 1 of two symmetries.

2, vehicle air compressor piston according to claim 1 is characterized in that: in the step that falls in 1 lower edge that processes two symmetries, place, two diagonal angles processes through hole 2.

3, vehicle air compressor piston according to claim 1 and 2 is characterized in that: the opening 3 that processes two symmetries in the piston skirt of vertical piston key seat position bottom.