Description:The following specification particularly describes the invention and the manner in which it is to be performed
FIELD OF INVENTION
[0001] The present disclosure relates to a shock absorber where dampening is caused by operating atmospheric air through a dynamic valve. The dampening during compression and rebound in the air shock absorber is thus more effective in meeting the demands of absorbing road shocks of an automobile to make vehicle ride more comfortable and safer
BACKGROUND AND PRIOR ART
[0002] In automobiles the shock absorber plays an important role in its safety and comfort. Improving a suspension design call for improving the design of a shock absorber and various other parts related to suspension. The advantages of a good suspension system are decreased braking distance, stability while cornering, reduced aqua planning, easy to drive, hold the wheel on the road by improving traction.
[0003] Hydraulic shock absorbers are often used in automobiles. The biggest disadvantage of hydraulic shock absorber is its inability to absorb road shocks at higher speeds. And this inability lead to accidents by throwing away people in a two wheeler or breaking the suspension parts in a four wheeled vehicle.
[0004] The current air shock absorbers or air springs contain a column of air in an elastomeric bellow or sleeve used to mitigate the issues to some extent.
[0005] These are pressurized air bags or air columns us the compressive abilities of air to absorb vibrations and shocks. These act like a cushion as the pressurized air balloons are kept between the rear axle and the chassis of automobiles. These air shock absorbers are very expensive and are made available only in premium vehicles.
[0006] Reference can be made to CN102330775A which discloses about one-level restriction pattern of throttle valve the two-step serial restriction pattern of one-level fixed restriction and one-level variable restrictor: promptly at the circular groove that the throttle orifice equal diameters on the inner hole wall in the middle of an axial length and the sub-air chamber 3 is set on the cylindrical of throttling valve core 4; This circular groove is communicated with by the endoporus of radial hole with throttling valve core 4; Through reducing the diameter of the radially throttle orifice on the throttling valve core 4, it is designed to the one-level fixed throttle port; And the restriction on the inner hole wall is exactly original settable orifice in the middle of circular groove on throttling valve core 4 cylindricals and the sub-air chamber 3; The orifice size of different just this restrictions is a little big a little.The pressure drop that this polyphone throttling pattern has been shared the one-level restriction by the two-step throttle mouth helps reducing the susceptibility of restriction to variation in pressure, improves the occupant and gets travelling comfort; Help reducing the processing and the installation precision of throttle valve.
[0007] Reference can be made to CN110901329A which discloses about The air compression device is arranged on the inner ring wall and comprises an upper compression cover, a lower compression cover, a middle shaft arranged between the upper compression cover and the lower compression cover and an air centrifugal mechanism arranged on the middle shaft in a penetrating mode, wherein the middle shaft can rotate under the driving of the driving device and drives the air centrifugal mechanism to work.
[0008] Reference can be made to CN108839529A which discloses about a kind of active variable volume air suspension of the present invention, including air spring, hydraulic pressure intensifier, fueller and company Linkage；The air spring has cavity, and air spring is connect with hydraulic pressure intensifier；Hydraulic pressure intensifier passes through connecting rod machine The vehicle frame of structure connection vehicle；The lower section of link mechanism and the suspension of vehicle connect；Hydraulic pressure intensifier passes through the reciprocal fortune of piston (115) It is dynamic to push sliding block, make high pressure oil of the sliding block in hydraulic pressure intensifier with it is past under the promotion of the high pressure gas in air spring cavity Multiple movement；Fueller is connect with hydraulic pressure intensifier.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Fig1 depicts the design of air shock absorber and its internal parts and components.
[0010] Fig 2 depicts the dynamic valve casing and the assembly.
[0011] Fig 3 depicts the different positions of valve during compression and rebound stroke of the shock absorber.
[0012] Fig 4 depicts dynamic valve design and the other components connected to it.
[0013] Fig 5 depicts a reservoir tube
[0014] Fig 6 depicts a working tube
[0015] Fig 7 depicts a coil spring
[0016] Fig 8 depicts guide
[0017] Fig 9 depicts a piston

PROBLEM TO BE SOLVED.
[0018] Above prior arts discloses about a complex mechanism involving increased number of parts which increases the overall cost of the mechanism.
[0019] To overcome aboe problems there is a need of a cost effective mechanism which provides dampening during compression and rebound in the air shock absorber to make vehicle ride more comfortable and safer.
OBJECT OF INVENTION
[0020] Main object of the invention is to proper shock absorption even at high speed of vehicles at the same time provide efficient dampening that increases the stability of the automobile.
[0021] Another object of the invention is to provide air shock absorber is designed to have very less number of parts when compared to a conventional hydraulic shock absorber.
[0022] Yet another object of the invention is to provide a cost effective dampning mechanism.

SUMMARY OF THE INVENTION
[0023] The disclosed design of air shock absorber with a dynamic valve (102) is to ensure proper shock absorption even at high speed of vehicles at the same time provide efficient dampening that increases the stability of the automobile. This air shock absorber is designed to have very less number of parts when compared to a conventional hydraulic shock absorber or a conventional air shock absorber with pressurizes air columns.
DETAILED DESCRIPTION OF THE INVENTION
[0024] As used herein, articles such as "a" and an when used in a claim, are understood to mean one or more of what is claimed or described. The terms "comprise," "comprises," "comprising," "contain," "contains," "containing," "include," "includes" and "including" are all meant to be non- limiting. The technical solutions of the present invention will be described in detail below with reference to the specific embodiments thereof. It is to be understood that the present invention is not intended to limit the scope of the present invention. Modifications of the various equivalents are intended to fall within the scope of the appended claims.
[0025] In one or more embodiment, the air absorber consists of two tubes of different sizes, a dynamic valve (102) and a coil spring (105) as shown in Fig 1. The atmospheric air filled inside the reservoir tube (107) dampens the movement of the shock absorber while in compression and in rebound. The working tube (104) and the reservoir tube (107) is joined together by a nut which also acts as a guide (111) for the working tube (104). The end of the working tube (104) is a piston (115) to create the movement of the air inside the shock absorber.
[0026] The top and bottom tubes of the shock absorber is provided with suitable mechanisms for fixing it to the chassis and to the tire mounting components. This shock absorber works on the principle of controlling the air flow in and out of the shock absorber through a dynamic valve (102). This allows the shock absorber to work smoothly absorbing road shocks at any speed of the vehicle. The shock absorber has a coil spring (105) with in the working tube (104) and the reservoir tube (107) which helps the smooth movement of shock absorber during compression and rebound. The coil spring (105) is designed to take a range of loads. Suitable material is used for smooth sliding of working tube (104) and reservoir tube (107) and the piston (115) at the end of working tube (104).
[0027] In one or more embodiment, the air shock absorber creates dampening during compression and rebound by controlling the flow of atmospheric air through a dynamic valve (102). The dynamic valve (102) is attached to the top of working tube (104) as shown in Fig 1.
[0028] The dynamic valve (102) consists of a valve casing (103) made of suitable materials with holes for air inlet and outlet. A suitable cylindrical or a spherical valve is located inside the valve body. This valve can move up to open the air outlet to release the air inside the shock absorber during compression.The valve is held against a compression valve spring (110) during the air flowing out. The stored force in the valve spring (110) allows the valve to come back to the original position during rebound as shown in Fig 2 and Fig 3.
[0029] While the valve moves up and down the regulated air movement out and in creates dampening effect. When the valve moves up both the outlet holes will get opened up to allow maximum flow of air outside creating a faster compression at the same time imparts a limited dampening due to the size of the outlet air holes. While lower outlet hole opens under light loads, the upper one opens at higher compression loads.
[0030] While during rebound the air inlet will be restricted only through the upper hole that create more dampening thus not allowing the bouncing of the wheels. This creates a very proper correct shock absorber effect which imparts safety, comfort and stability to the automobile.
[0031] Figure 3 shows the various positions of valve during compression and rebound of the shock absorber. During the compression stroke the reservoir tube (107) moves up. A piston (115) is connected to the reservoir tube (107) at lower end and the other end is having a piston (115) which is inside the working tube (104). The piston (115) also moves up inside the working tube (104) creates an air pressure. The suitably designed coil spring (105) (fig 7) inside the working tube (104) and the reservoir tube (107) gets compressed during the compression stroke and the stored forces in coil spring (105) helps the shock absorber to come back in the rebound stroke. The pressurized air moves the dynamic valve (102) up. As the pressure increases the valve moves more toward the upward direction opening more outlet holes for the air to pass out. This creates easy movement of the working tube (104) while absorbing the shocks and vibration.
[0032] In one or more embodiment, the dynamic valve (102) inside the valve casing (103) is designed with suitable materials. The mass, dimension and shape of the valve (Fig 4) is calculated and designed based on the load parameters on the shock absorber. Dampening characteristics of the shock absorber can be adjusted by changing the parameters like dimension, shape, material and mass of the valve.
[0033] In one or more embodiment, the air shock absorber has coil spring (105) that are designed in progressive manner to adapt to various load conditions. The arrangement of coil spring (105) makes sure the smooth functioning and sharing of load in any given road conditions. The round for working and reservoir tubes are selected to match the requirement of the functions of shock absorber at various conditions that provides the absorption of road shocks effectively.
[0034] In one or more embodiment, the development of air shock absorber includes the design of different components of the outer tube, inner tube , valve, lock, piston (115) and guides (111) to operate the shock absorber and selection of materials for fabrication of the designed unit.

List Of Figures-
101- Bolt
102- Dynamic Valve
103- Dynamic valve casing
104- Working tube
105-Coil spring
106- Lock
107-Reservoir tube
108-Whel Axel mounting
109-1st O ring
110-Valve Spring
111-Guide
112-Atmospheric air inlet ant outlet points
114- 2nd O ring
115- Piston
, Claims:We Claim;
1) An air shock absorber with dynamic valve (102) for automobiles, comprising of plurality of tubes, an elastic means, a piston (115), a plurality of tube guides (111), an outer casing (103) and a plurality of atmospheric air exit and entry points (112); wherein the said plurality of atmospheric air exit and entry points (112) are completely blocked or completely open or partially blocked or partially open by a self-adjusted dynamic valve (102) as per the load exerted on the said air shock absorber.
2) An air shock absorber with dynamic valve (102) for automobiles, as claimed in claim 1, wherein one of the said plurality of tubes is a working tube (104) in which the said dynamic valve (102) is located.
3) An air shock absorber with dynamic valve (102) for automobiles, as claimed in claim 1, wherein the said elastic means is a compression valve spring (110) which is attached to the said dynamic valve (102) at its one end.
4) An air shock absorber with dynamic valve (102) for automobiles, as claimed in claim 1, wherein the said outer casing (103) comprises of plurality of atmospheric air exit and entry points (112) on the wall of the outer casing (103) in a linear manner.
5) An air shock absorber with dynamic valve (102) for automobiles, as claimed in claim 4, wherein the plurality of atmospheric air exit and entry points (112) on the wall of the outer casing (103) are separated from each other in such a manner that each point is 8 mm to 25mm apart in a linear form. This dimension is decided by the height of the valve.
6) An air shock absorber with dynamic valve (102) for automobiles, as claimed in claim 5, wherein the dimension of the said plurality of atmospheric air exit and entry points (112) is in the range of 0.5 mm to 3 mm.
7) An air shock absorber with dynamic valve (102) for automobiles, as claimed in claim 1, wherein one the said plurality of tubes is a reservoir tube (107) filled by atmospheric air.
8) An air shock absorber with dynamic valve(102) for automobiles, as claimed in claim 1, wherein the said self-adjusted dynamic valve (102) operates against the amount of exerted pressure and proportionately exposing the said plurality of atmospheric air exit and entry points (112).
9) An air shock absorber with dynamic valve (102) for automobiles, as claimed from claim 1 to claim 8, wherein a lower end of the reservoir tube (107) is connected to a piston (115) and the other end consists of piston (115) which is located inside the working tube (104).
10) An air shock absorber with dynamic valve (102) for automobiles, as claimed from claim 9, wherein the said working tube (104) and the reservoir tube (107) moves freely between each other by means of guides (111) designed using low friction materials.
11) An air shock absorber with dynamic valve (102) for automobiles, as claimed in claim 10, wherein the woking tube and the reservoir tube (107) has dimensions varying from 200mm to 450mm.
12) An air shock absorber with dynamic valve (102) for automobiles, as claimed from claim 1, wherein the said dynamic valve moves (102) linearly creating dampening effect, the dynamic valve (102) moves completely up allowing maximum flow of air outside creating a faster compression at the same time imparts a controlled dampening due to the optimised dimension of the atmospheric air exit and entry points (112).
13) An air shock absorber with dynamic valve (102) for automobiles, as claimed from claim 12, wherein the said dynamic valve moves (102) linearly creating dampening effect by controlling the flow of atmospheric air from atmosphere to inside the working tube (104).
14) An air shock absorber with dynamic valve (102) for automobiles, as claimed in claim 1, wherein the said piston (115) is designed with materials having low friction.
15) An air shock absorber with dynamic valve (102) for automobiles, as claimed in claim 14, wherein the said piston (115) is located within the working tube (104) and is stationary against the movement of the said working tube (104).

Dated- 23rd Day of March 2023 Signature of the Agent
Rajat Chaudhary IN/PA-3136