Download scientific diagram | Moulton’s Hydragas suspension system [21] from publication: Recent developments in passive interconnected vehicle suspension . Find great deals on eBay for mgf hydragas suspension. Shop with confidence. Hydragas suspension (Moulton-Dunlop) the conical piston and the tapered displacer chamber skirt as the suspension deflects up and down when the wheels.

Author: Mizragore Mekasa
Country: Antigua & Barbuda
Language: English (Spanish)
Genre: Marketing
Published (Last): 18 May 2005
Pages: 318
PDF File Size: 17.36 Mb
ePub File Size: 20.58 Mb
ISBN: 777-9-62270-113-9
Downloads: 95487
Price: Free* [*Free Regsitration Required]
Uploader: Kizilkree

Remember, at this time Ford’s state of the art small car was the angular Anglia; Ford’s answer to the Morris Minor and only 11 years late. Reducing the differential between front hyydragas rear forces on the car body induces more of a bounce mode of vibration than a pitching mode. From Wikipedia, hydrzgas free encyclopedia. I can do no better than to paraphrase his published thoughts: The revised Rover Metro had its suspension interconnected and went on to receive plaudits for the quality of its ride.

Cars using the Hydrolastic suspension system: Each displacer unit contains a rubber spring, and damping is achieved by suspensiion displaced fluid passing through rubber valves. The same applies to MGF rears to avoid any fouling on adjacent components.

Later ‘New Series’ Moulton bicycles are fitted with rear suspensions systems marketed as ‘Hydrolastic’. Lord wanted to sweep them away and so Issigonis got the order to build the smallest of his new cars first, a proper miniature four-seater.

Hydrolastic – Wikipedia

I had previously designed the rubber cone suspension system — it was a specially shaped rubber and metal unit that gave a smoothly rising spring rate. June Learn how and when to remove this template message.

Hydragas was introduced with the unloved Austin Allegro in the s and is still in use on roads today fitted to the MGF. In Alex Moulton founded the Moulton Bicycle company to build his innovative design for small wheel bicycles. Cars using the Hydragas suspension system: The third model treated the inertial and compressibility effects by inserting a mass into the spring-damper system. Part of the Automobile series.


He gave us some insights into the development of the Car of the 20th Century – and his opinion on the BMW Mini of the 21st century After the Second World War I was determined to move my family firm — Spencer-Moulton based at Bradford on Avon — from the manufacture of rubber suspension for railway coaches, and into automotive suspension.

A stiffness matrix was generated that included terms due to individual unit and interconnection effects.


He was given a free hand to do what he liked, more or less. Other Interconnected Suspension References 1. Shock absorbers Automotive suspension technologies Automotive technology tradenames. Bernd Pischetsrieder, with whom I had had encouraging discussions left and the decision was taken that the new Mini should be wholly conventional in its suspension.

Council of the I Mech. I suggest that these cars will have the Issigonis layout of transverse engine and front wheel drive.

The piston area variation thus produces a restoring moment about the pitch axis. This gave the car a rising and falling motion rather than the sudden pitching of the rubber cone system.

Contact Ian and Dawn on: The displaced fluid passes to the displacer of the paired wheel, thus providing a dynamic interaction between front and rear wheels. A forward-travelling car will first encounter disturbances at the front wheels that tend to lift the front of the car in relation to the rear. The damping fluid chambers of the front and rear wheels on each side of the car are connected via a hydraulic hose, such that an input at the front wheel pumps fluid through the pipe to the rear wheel.


The stiffness, or resistance of the system to such wheel motions, is clearly lower than it would be were the interconnection removed. One unit was held at its datum suspensiin while the other was moved.

Hydragas Suspension

Automobile Division, Amazingly. This is perfectly normal, when new they had a design life of approximately 15 years. The upward motion of the front wheel in pitch displaces fluid to the rear unit, causing the rear wheel to exert an upward force on the car body.

Interconnecting front and rear suspension units with fluid in pipes meant that the pitch mode was separated from bounce and roll. The lower diaphragm is composed of a sealing rubber layer atop a structural rubber layer.

Hydragas was never fitted to a production Mini, but Alex Moulton has some fascinating prototypes in his stable: This effect is particularly good on small cars as their shorter wheelbases are more affected by pitching. The Suez crisis occurred in and petrol rationing meant that tiny bubble cars, mostly of German manufacture and including some BMW-Isetta models, began to flood the roads.

Sufficient pressure differential between the upper and lower chambers compresses either the bump or rebound compression block, increasing fluid flow as a function of pressure difference. The system uses nitrogen gas as the springing medium and hydraulic hyddagas pressure drop as the damping mechanism.