US 2012/0073283 A1Published application

Hydraulic continuously variable transmission structure for automobile and automobile having the same

OwnerZhenfang WUinventor

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Abstract

The present invention provides a hydraulic continuously variable transmission structure for an automobile comprising an oil tank, a tee joint, a hydraulic pump, an automobile speed regulation valve, an astern valve and a hydraulic motor, wherein the oil tank, the hydraulic pump, the automobile speed regulation valve, the astern valve and the hydraulic motor are connected via oil pipes to form an integral hydraulic continuously variable transmission structure. An automobile adopting the hydraulic continuously variable transmission structure for an automobile is also provided. According to the present application, continuously variation of speed ratio may be achieved.

Claims5

Dependent claims

A hydraulic continuously variable transmission structure for an automobile, comprising:

an oil tank (17);
a tee joint (13) having three connecting ends;
a hydraulic pump (18), which is arranged behind an engine (10) or a clutch (11), wherein the hydraulic pump (18) is in communication with the oil tank (17) and is connected to a first connecting end of the tee joint (13);
an automobile speed regulation valve (12) having one end connected to a second connecting end of the tee joint (13) and the other end connected with the oil tank (17);
an astern valve (14) connected to a third connecting end of the tee joint (13) and in communication with the oil tank (17);
and
a hydraulic motor (15) connected with the astern valve (14) and wheels (16),
wherein the oil tank (17), the hydraulic pump (18), the automobile speed regulation valve (12), the astern valve (14) and the hydraulic motor (15) are connected via oil pipes to form an integral hydraulic continuously variable transmission structure.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/281,946Filed 26 Oct 2011
Priority: CN 200920102510.428 Apr 2009
Published: 29 Mar 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B60K 17/356
For driving both front and rear wheels, e.g. four wheel drive vehicles: having fluid or electric motor, for driving one or more wheels
B60K 17/10
Characterised by arrangement, location or kind of gearing: of fluid gearing
B60K 17/14
Characterised by arrangement, location or kind of gearing: the motor of fluid or electric gearing being disposed in, or adjacent to, traction wheel
F16H 61/4061
Hydrostatic: control related to directional control valves, e.g. change-over valves, for crossing the feeding conduits

Family

Application13/281,946Continuation in part
US 2012/0073283 A1This patent

From the US filing history. Foreign family members aren’t listed.

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