GB758499A - Improvements in or relating to a windshield cleaning system - Google Patents

Improvements in or relating to a windshield cleaning system

Info

Publication number
GB758499A
GB758499A GB28671/54A GB2867154A GB758499A GB 758499 A GB758499 A GB 758499A GB 28671/54 A GB28671/54 A GB 28671/54A GB 2867154 A GB2867154 A GB 2867154A GB 758499 A GB758499 A GB 758499A
Authority
GB
United Kingdom
Prior art keywords
pump
suction
chamber
manifold
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB28671/54A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trico Products Corp
Original Assignee
Trico Products Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trico Products Corp filed Critical Trico Products Corp
Publication of GB758499A publication Critical patent/GB758499A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

758,499. Windscreen washers. TRICO PRODUCTS CORPORATION. Oct. 5. 1954 [Oct. 19, 1953], No. 28671/54. Class 138(1) A windscreen cleaning system for a motor vehicle 1 Fig. 1. has a primary source of suction derived from the intake manifold 3 of the vehicle engine 2, a washer pump 12 for delivering liquid through nozzles 14 on to the windshield 8, an engine-driven auxiliary source of motion (e.g. crankcase ventilating pump 6), and a valve mechanism 11 to which the primary and auxiliary sources of suction, the pump 12 and a wiper motor 5 are connected and by which the washer pump is automatically placed in communication with the source of suction of greater magnitude, when the system is in operation. Referring to Fig. 2, the valve mechanism 11 comprises casing parts 17. 17<SP>1</SP>, of which 17 has two chambers 21, 21<SP>1</SP> and 17<SP>1</SP> is provided with a passageway 24 connected to bores 26, 26<SP>1</SP> and a nipple 25. A flexible diaphragm 18 has flaps 27. 27<SP>1</SP> to co-operate with the bores 26, 26<SP>1</SP>. The chamber 21 is connected by tubes 4, 4', with the manifold 3 and motor 5, whilst the chamber 21<SP>1</SP> is connected by tubes 7, 7<SP>1</SP> with the pump 6 and the motor 5. The nipple 25 is connected to the washer pump 12 by a tube 13, and the pump may be of the type disclosed in Specification 757.231. When the magnitude of the manifold suction is greater than that of the pump 6, i.e. at low engine speeds, the flap 27 adopts the dotted line position since the pressure in the chamber 21 is less than the atmospheric pressure normally existing in the passage 24. With the bore 26 uncovered the pressure in the passageway 24 will drop and as the degree of vacuum in the chamber 21<SP>1</SP> operated by the pump 6 is normally less than that in the chamber 21 the flap 27<SP>1</SP> is moved into the dotted line position to prevent oil being sucked-up out of the crankcase. When the vehicle is accelerated the manifold suction decreases and the pressure at the intake side of the pump 6 drops, due to the increased engine speed. Conseauently the flaps reverse and adopt the full line positions, the pump 12 then being actuatable by the suction of the pump 6. Since in this instance the valve 27 is closed petrol will not be sucked out of the manifold 3.
GB28671/54A 1953-10-19 1954-10-05 Improvements in or relating to a windshield cleaning system Expired GB758499A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US758499XA 1953-10-19 1953-10-19

Publications (1)

Publication Number Publication Date
GB758499A true GB758499A (en) 1956-10-03

Family

ID=22128372

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28671/54A Expired GB758499A (en) 1953-10-19 1954-10-05 Improvements in or relating to a windshield cleaning system

Country Status (1)

Country Link
GB (1) GB758499A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087480B (en) * 1957-12-21 1960-08-18 Rau Swf Autozubehoer Line distributor, in particular for the hose lines of windscreen washer systems for motor vehicles
DE1106622B (en) * 1959-10-09 1961-05-10 Rau Swf Autozubehoer Non-return valve for nozzle carriers and pipelines of windshield washer systems
DE1209013B (en) * 1959-10-14 1966-01-13 Trico Folberth Ltd Displacement pump for windshield washer systems on motor vehicles
DE1210700B (en) * 1960-06-10 1966-02-10 Vdo Schindling Hand operated bellows pump for windscreen washer systems in motor vehicles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087480B (en) * 1957-12-21 1960-08-18 Rau Swf Autozubehoer Line distributor, in particular for the hose lines of windscreen washer systems for motor vehicles
DE1106622B (en) * 1959-10-09 1961-05-10 Rau Swf Autozubehoer Non-return valve for nozzle carriers and pipelines of windshield washer systems
DE1209013B (en) * 1959-10-14 1966-01-13 Trico Folberth Ltd Displacement pump for windshield washer systems on motor vehicles
DE1210700B (en) * 1960-06-10 1966-02-10 Vdo Schindling Hand operated bellows pump for windscreen washer systems in motor vehicles

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