On models with Hydrolastic suspension, an auxiliary coil spring is located can be carried out on the suspension or its components, the Hydrolastic system. Hydrolastic is a type of space-efficient automotive suspension system used in many cars produced by British Motor Corporation (BMC) and its. 5 days ago Most components shown below are unique to the Hydrolastic (wet suspension) system and suspension/braking systems on.

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The smoother the ride, the less energy the car will need to drive it along the tarmac. Hydrolastic suspension has a rubber spring built into it – a sort of mini cone, when compared to the Mini dry cones, while hydragas uses a compressed gas spring.

Hydrolastic – Wikipedia

I dislike post-war town planning. Today, there are more modern systems that can outperform suspenaion systems, but at greatly increased cost, and this level of performances was achieved over four decades ago, with relatively basic mechanical parts that lacked any kind of “active” or feedback control on them. Sysetm Land Crab, for example, adopted a low-rider stance, more on one side than the other, requiring ministrations hydrolastif a dealer hundreds of miles away.

With the lower containers being squeezed by the suspension, and no way out of the upper containers as in escape to the other end of the car the fluid’s only choice is to compress the spring, giving pretty much the same suspension action as if the spring itself was being compressed directly.

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At the same time, fluid is forced through the syztem to the rear unit. The combination of conical rubber springs and small wheels was one of the many innovative developments that allowed Issigonis to achieve the Mini’s small overall size.

These are, in essence, miniaturised versions of the displacers used on Hydrolastic-equipped cars being a rubber cone spring with an internal fluid chamber to provide damping. He hated all things big – big cars, big organisations, big houses – and loved to shock his listeners.

Conventional systems require that suspension is uniformly stiff: In Alex Moulton founded the Moulton Bicycle company to build his innovative design for small wheel bicycles.


The same softness that allows the wheel to absorb a sharp upward variation in the road also means that cornering forces can push the body downward on the inside wheels. Such units are generally available for hire, together with suitable suspension fluid, from most tool hire shops. The wheel has a minimum ratio of 9: Email required Address never made public.

The Moulton bicycle was the original full- suspension bicycle, highly efficient and designed with superior performance and comfort in mind. Hence it is possible to design a compliant suspension – giving a comfortable ride – without suffering a penalty in terms of excessive roll when cornering. In the interim, conventional suspension has made enormous strides meaning the advantages the alternatives offered were comparatively reduced. These are then linked fore and aft; the left front linked to the left rear, along with the right front linked to the right rear.

I used to wonder all those years ago whether a degree of anti-roll could hyrdolastic been achieved by by a cunning cross-connection of the Hydrolastic system fluid pipes side to side front and rear as well as the mere front to rear connection they actually went with.

The final hydrolzstic to use the concept was suspejsion MGF. Further, the public were less and less interested in the pleasures of a smooth riding car; somehow a harsh ride was associated with sportiness and performance while ride-quality became the preserve of the non-sporty. Each displacer unit contains a rubber spring, and damping is achieved by the displaced fluid passing through sysgem valves. These instructions should be read through carefully before attempting to use the unit, and followed accurately throughout the operation.

A British sports car concept featuring the Bluebird cartridge exchange instant recharging system. During the war he had worked on engine design at the Bristol Aeroplane Company. That vehicle used two springs separated by a tight-fitting rubber piston in a cylinder alongside the sills, each spring connected to a swing-arm by a push-pull hydrolatic. Coloring is added to help show up leaks or contaminated fluid easily.

GM invented those MR dampers and fluid some years ago and even Ferrari use them these days; no other damper works better. We would agree with him. This site sustem Akismet to reduce spam.


Notify me of new comments via email. Hydrllastic any major work can be carried out on hydrolaatic suspension or its components, the Hydrolastic system must be depressurised. Cars using the Hydragas suspension system: The car must be resting on all four wheels with a load as described above for pressurising. Garages equipped with hydragas pumping facilities are becoming more and more scarce, and prices can vary dramatically.

The next question is; what happens if both front and rear units are compressed at the same time, when they’d cancel each other out? The springs and dampers of the standard system are replaced by fluid-filled spheres. Due to time pressures, the interconnected suspension system that Issigonis had planned for the car was replaced by an equally novel, but cruder, rubber cone system designed by Alex Moulton. The front-to-back compliance of the Hydrolastic suspension means that the car can still squat and dive.

Retrieved from ” https: So, great concept, crap execution. Automatic transmission Chain drive Clutch Constant-velocity joint Continuously variable transmission Coupling Differential Direct-shift gearbox Drive shaft Dual-clutch transmission Drive wheel Electrohydraulic manual transmission Electrorheological clutch Epicyclic gearing Fluid coupling Friction drive Gear stick Giubo Hotchkiss drive Limited-slip differential Locking differential Suspenxion transmission Manumatic Parking pawl Park by wire Preselector suspnsion Semi-automatic transmission Shift by wire Torque converter Transaxle Transmission control unit Universal joint.

The French win again. If a different pressure reading is now indicated, the system pressure should be adjusted by operating the pressure pump to raise the pressure, or opening the pressure valve on the unit to lower the pressure, until the specified figure is obtained.

Both systems are designed to be fit-and-forget parts or sealed hydrolaatic.

The answer is that the top containers of each unit have a spring inside them – rubber on the hydrolastic system and gas in the hydragas units.