http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-736727-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fa62280143fb92dbc82eb56f8f5d35d2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B60T11-103 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B60T11-10 |
| filingDate | 1953-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3623b21c8c053ccbe2ab739b04462546 |
| publicationDate | 1955-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-736727-A |
| titleOfInvention | Control mechanism for preventing motor vehicles from creeping with provision for maintaining a constant restraining force |
| abstract | 736,727. Electrically-actuated valves. MINNESOTA AUTOMOTIVE, Inc. May 12, 1953, No. 13295/53. Class 135. [Also in Groups XXXI, and XXXIV] In a brake control mechanism for use with hydraulic brake systems to prevent creeping of a motor vehicle, a solenoid-operated fluid control valve A is connected in the fluid supply line to the brake actuators of the rear wheel brakes 32 with the plug member 19 disposed towards said brake actuators, three switches 26, 27 and 28 respectively being interposed into the solenoid circuit to control the energization thereof and prevent back-flow of fluid therethrough. The switch 26 represents an ignition switch, the switch 27 is actuated by the accelerator pedal 29 and is closed when the accelerator pedal is released,' and switch 28 represents a manually-operated master-control switch which may be opened or closed by the operator. The control mechanism is operated only when both the ignition switch 26 and the master switch 28 are closed. Then, whenever the accelerator pedal 29 is completely released, the solenoid 24 is energized. This produces a magnetic field and magnetizes the core member 11, which attracts the ferrous metal valve carrying body 20 to project said body forwardly to engage the divided-annular ring 23 against the face of partition 1'2 on the inlet side thereof and compress the spring. 22. With the body 20 in its projected position and the valve 21 seated against seat 15 fluid is still'permitted to. flow to the brake actuators through passages 20a, 20b, 20c, and outwardly from inner valve, chamber 9 through passages 13, past the spring-loaded oneway annular check valve 16, and into the fluid supply lines. When the brake pedal 30, which operates a conventional master cylinder 31, is released and fluid seeks to return, the annular cheek valve 16 seats itself to close off passages 13 and the only open passage permitting backflow of fluid is the central seated flow-passage 14. The spring-loaded valve 21 directly opposes back-flow of fluid through seated flow passage 14, as indicated in Fig. 1, and thereby maintains a precisely predetermined residual pressure in the fluid supply line and holds the brakes in the applied position with a predetermined foree. Immediately upon de-energization of the solenoid 24, as by stepping on the accelerator pedal 29, the body 20 is permitted to move rearwardly into its retracted position, as shown in Fig. 2, and releases the compression from spring 22 and the pressure in the brake line, the valve 21 being moved away from the seat 15 by the back-flow of fluid pressure to permit unrestricted flow of fluid back to the master cylinder 31. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2237100-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2237100-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2123911-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2167144-A |
| priorityDate | 1953-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID27284 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419559466 |
Total number of triples: 17.