本發(fa)明涉(she)及汽車高壓共軌噴(pen)油技(ji)術領域，尤其涉(she)及一種高壓共軌專(zhuan)用噴(pen)油裝置(zhi)。

背景技術：

為了(le)滿足日益嚴格的(de)(de)(de)(de)排放法規，燃(ran)油(you)(you)(you)(you)(you)(you)系統的(de)(de)(de)(de)噴(pen)射(she)壓(ya)(ya)(ya)力(li)越(yue)來(lai)(lai)越(yue)高。隨著噴(pen)射(she)壓(ya)(ya)(ya)力(li)的(de)(de)(de)(de)提(ti)高，噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)的(de)(de)(de)(de)動態回油(you)(you)(you)(you)(you)(you)也越(yue)來(lai)(lai)越(yue)大(da)。噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)動態回油(you)(you)(you)(you)(you)(you)量(liang)(liang)(liang)增加，將增加供油(you)(you)(you)(you)(you)(you)泵的(de)(de)(de)(de)能量(liang)(liang)(liang)消耗，降低(di)燃(ran)油(you)(you)(you)(you)(you)(you)系統的(de)(de)(de)(de)經(jing)濟性。同時(shi)更多的(de)(de)(de)(de)高壓(ya)(ya)(ya)燃(ran)油(you)(you)(you)(you)(you)(you)泄漏(lou)到低(di)壓(ya)(ya)(ya)油(you)(you)(you)(you)(you)(you)路(lu)中(zhong)，將導致(zhi)噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)中(zhong)低(di)壓(ya)(ya)(ya)油(you)(you)(you)(you)(you)(you)路(lu)溫度(du)更高，進(jin)而影響噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)工作的(de)(de)(de)(de)穩定性、可靠性。此外，由噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)的(de)(de)(de)(de)工作原(yuan)理可知，噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)是(shi)通過(guo)控(kong)(kong)(kong)制(zhi)控(kong)(kong)(kong)制(zhi)腔(qiang)中(zhong)的(de)(de)(de)(de)燃(ran)油(you)(you)(you)(you)(you)(you)壓(ya)(ya)(ya)力(li)的(de)(de)(de)(de)上升(sheng)或下(xia)降，從(cong)而通過(guo)壓(ya)(ya)(ya)力(li)差控(kong)(kong)(kong)制(zhi)燃(ran)油(you)(you)(you)(you)(you)(you)噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)的(de)(de)(de)(de)控(kong)(kong)(kong)制(zhi)活塞(sai)沿軸向的(de)(de)(de)(de)上下(xia)運(yun)動。噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)的(de)(de)(de)(de)設計(ji)中(zhong)為了(le)減小(xiao)噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)的(de)(de)(de)(de)噴(pen)油(you)(you)(you)(you)(you)(you)延(yan)遲，會將噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)出(chu)油(you)(you)(you)(you)(you)(you)量(liang)(liang)(liang)孔和進(jin)油(you)(you)(you)(you)(you)(you)量(liang)(liang)(liang)孔流量(liang)(liang)(liang)比(bi)設計(ji)的(de)(de)(de)(de)比(bi)較(jiao)(jiao)(jiao)大(da)。這使控(kong)(kong)(kong)制(zhi)腔(qiang)的(de)(de)(de)(de)中(zhong)燃(ran)油(you)(you)(you)(you)(you)(you)壓(ya)(ya)(ya)力(li)降低(di)的(de)(de)(de)(de)幅度(du)較(jiao)(jiao)(jiao)大(da)，從(cong)而導致(zhi)在噴(pen)油(you)(you)(you)(you)(you)(you)結(jie)束時(shi)，控(kong)(kong)(kong)制(zhi)腔(qiang)中(zhong)的(de)(de)(de)(de)燃(ran)油(you)(you)(you)(you)(you)(you)壓(ya)(ya)(ya)力(li)恢復較(jiao)(jiao)(jiao)慢，噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)關閉延(yan)遲較(jiao)(jiao)(jiao)長，導致(zhi)噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)噴(pen)油(you)(you)(you)(you)(you)(you)靈(ling)敏(min)性變差，限(xian)制(zhi)了(le)噴(pen)油(you)(you)(you)(you)(you)(you)器(qi)多次噴(pen)射(she)能力(li)的(de)(de)(de)(de)提(ti)高。

因此，為了解決(jue)上述問題，急(ji)需發明一種新的高壓共軌專用噴油裝置。

技術實現要素：

本發明的目(mu)的在于(yu)：提(ti)供一種通(tong)過在控制活(huo)塞(sai)和孔板底面構成節流(liu)環(huan)帶，實現(xian)了大(da)幅度減(jian)少噴油(you)器(qi)動態(tai)回油(you)的同時減(jian)小噴油(you)器(qi)關(guan)閉(bi)延遲，進而(er)提(ti)高噴油(you)器(qi)噴油(you)靈(ling)敏性(xing)。

本發明提供了下述方案：

一種高壓(ya)(ya)共(gong)軌專(zhuan)用(yong)噴油(you)(you)(you)裝置(zhi)，包(bao)括控(kong)制(zhi)(zhi)活(huo)塞(sai)、噴油(you)(you)(you)器(qi)體(ti)、和(he)孔(kong)(kong)板(ban)，所(suo)(suo)述(shu)(shu)(shu)(shu)控(kong)制(zhi)(zhi)活(huo)塞(sai)、所(suo)(suo)述(shu)(shu)(shu)(shu)噴油(you)(you)(you)器(qi)體(ti)和(he)所(suo)(suo)述(shu)(shu)(shu)(shu)孔(kong)(kong)板(ban)構(gou)成(cheng)(cheng)高壓(ya)(ya)共(gong)軌控(kong)制(zhi)(zhi)腔(qiang)；在(zai)所(suo)(suo)述(shu)(shu)(shu)(shu)控(kong)制(zhi)(zhi)活(huo)塞(sai)頂部(bu)(bu)和(he)所(suo)(suo)述(shu)(shu)(shu)(shu)孔(kong)(kong)板(ban)底(di)面(mian)(mian)(mian)間形成(cheng)(cheng)裝配間隙，所(suo)(suo)述(shu)(shu)(shu)(shu)噴油(you)(you)(you)器(qi)體(ti)包(bao)括針(zhen)(zhen)閥，所(suo)(suo)述(shu)(shu)(shu)(shu)針(zhen)(zhen)閥的(de)頂部(bu)(bu)和(he)所(suo)(suo)述(shu)(shu)(shu)(shu)噴油(you)(you)(you)器(qi)體(ti)之(zhi)間形成(cheng)(cheng)針(zhen)(zhen)閥限位間隙；所(suo)(suo)述(shu)(shu)(shu)(shu)孔(kong)(kong)板(ban)底(di)面(mian)(mian)(mian)設(she)置(zhi)有與出油(you)(you)(you)量孔(kong)(kong)相(xiang)通(tong)的(de)引流(liu)(liu)孔(kong)(kong)，所(suo)(suo)述(shu)(shu)(shu)(shu)高壓(ya)(ya)共(gong)軌控(kong)制(zhi)(zhi)腔(qiang)上(shang)部(bu)(bu)設(she)有進油(you)(you)(you)量孔(kong)(kong)；噴油(you)(you)(you)器(qi)噴油(you)(you)(you)過程中(zhong)，所(suo)(suo)述(shu)(shu)(shu)(shu)控(kong) 制(zhi)(zhi)活(huo)塞(sai)升起后，在(zai)控(kong)制(zhi)(zhi)活(huo)塞(sai)頂部(bu)(bu)和(he)孔(kong)(kong)板(ban)底(di)面(mian)(mian)(mian)構(gou)成(cheng)(cheng)節(jie)流(liu)(liu)環帶，產生節(jie)流(liu)(liu)效果，從而大幅度減少噴油(you)(you)(you)器(qi)動態回油(you)(you)(you)；所(suo)(suo)述(shu)(shu)(shu)(shu)控(kong)制(zhi)(zhi)活(huo)塞(sai)的(de)外(wai)表面(mian)(mian)(mian)上(shang)和(he)所(suo)(suo)述(shu)(shu)(shu)(shu)溢(yi)流(liu)(liu)孔(kong)(kong)的(de)內表面(mian)(mian)(mian)上(shang)均設(she)有泡(pao)(pao)沫鋁/泡(pao)(pao)沫鎳導(dao)熱消(xiao)音層(ceng)。

優選地，所(suo)述控(kong)制活塞頂部(bu)為(wei)圓弧形。

優選地(di)，所(suo)述控制活塞頂部圓弧形直徑大于所(suo)述控制活塞直徑的3倍(bei)。

優選(xuan)地，所述控(kong)制活(huo)塞頂部為等腰(yao)梯形。

優選(xuan)地(di)，所述控制活塞頂部(bu)梯形的(de)短邊小于(yu)引流孔直(zhi)徑(jing)。

優選(xuan)地，所述控制活(huo)塞頂(ding)部(bu)和(he)孔板底面間(jian)裝(zhuang)配間(jian)隙小(xiao)于針(zhen)閥(fa)頂(ding)部(bu)和(he)噴油器體間(jian)的(de)針(zhen)閥(fa)限位間(jian)隙0～0.02mm。

優選地，控制(zhi)活塞(sai)完全升起后，通過液壓平衡自動浮動調(diao)節(jie)控制(zhi)活塞(sai)和孔(kong)板底面(mian)之間的節(jie)流(liu)環帶間隙。

優(you)選地，出油(you)量孔和進油(you)量孔流量比為1.3～1.8。

本發明產(chan)生的(de)有(you)益效果：

本(ben)發(fa)明(ming)所公開的(de)高(gao)(gao)壓共軌專用噴(pen)油(you)(you)(you)裝置(zhi),通(tong)過(guo)(guo)合理設計孔(kong)(kong)(kong)(kong)板底(di)(di)面及控(kong)制(zhi)(zhi)(zhi)(zhi)活(huo)(huo)塞頂部形(xing)(xing)狀，當(dang)噴(pen)油(you)(you)(you)器噴(pen)油(you)(you)(you)時(shi)，在控(kong)制(zhi)(zhi)(zhi)(zhi)活(huo)(huo)塞和(he)孔(kong)(kong)(kong)(kong)板底(di)(di)面形(xing)(xing)成節(jie)(jie)(jie)流(liu)環(huan)帶,產生節(jie)(jie)(jie)流(liu)效果，從(cong)而(er)大幅度減(jian)(jian)少(shao)(shao)噴(pen)油(you)(you)(you)器動(dong)態回(hui)油(you)(you)(you)，減(jian)(jian)少(shao)(shao)噴(pen)油(you)(you)(you)器發(fa)熱(re)，減(jian)(jian)少(shao)(shao)了(le)(le)供(gong)油(you)(you)(you)泵功率(lv)損(sun)失。同(tong)(tong)時(shi)精(jing)確設計孔(kong)(kong)(kong)(kong)板底(di)(di)面和(he)控(kong)制(zhi)(zhi)(zhi)(zhi)活(huo)(huo)塞頭部之(zhi)(zhi)間節(jie)(jie)(jie)流(liu)環(huan)帶間隙，使活(huo)(huo)塞完全升起后處于完全浮動(dong)狀態。進而(er)通(tong)過(guo)(guo)液壓平(ping)衡自動(dong)浮動(dong)調節(jie)(jie)(jie)控(kong)制(zhi)(zhi)(zhi)(zhi)活(huo)(huo)塞和(he)孔(kong)(kong)(kong)(kong)板底(di)(di)面之(zhi)(zhi)間的(de)節(jie)(jie)(jie)流(liu)環(huan)間隙，從(cong)而(er)減(jian)(jian)少(shao)(shao)因(yin)為(wei)裝配(pei)(pei)誤差(cha)節(jie)(jie)(jie)流(liu)環(huan)帶間隙不同(tong)(tong)導致的(de)控(kong)制(zhi)(zhi)(zhi)(zhi)腔壓力(li)差(cha)異，進而(er)改善(shan)噴(pen)油(you)(you)(you)器裝配(pei)(pei)一致性。控(kong)制(zhi)(zhi)(zhi)(zhi)腔因(yin)為(wei)出油(you)(you)(you)量孔(kong)(kong)(kong)(kong)、控(kong)制(zhi)(zhi)(zhi)(zhi)活(huo)(huo)塞和(he)孔(kong)(kong)(kong)(kong)板底(di)(di)面之(zhi)(zhi)間的(de)節(jie)(jie)(jie)流(liu)環(huan)帶的(de)共同(tong)(tong)作用會使控(kong)制(zhi)(zhi)(zhi)(zhi)腔保持更高(gao)(gao)的(de)壓力(li)，當(dang)電磁閥斷電以(yi)后，控(kong)制(zhi)(zhi)(zhi)(zhi)腔壓力(li)恢復的(de)更快，噴(pen)油(you)(you)(you)關(guan)閉延遲(chi)更短，提高(gao)(gao)了(le)(le)噴(pen)油(you)(you)(you)器噴(pen)油(you)(you)(you)靈(ling)敏性。出油(you)(you)(you)量孔(kong)(kong)(kong)(kong)和(he)進油(you)(you)(you)量孔(kong)(kong)(kong)(kong)流(liu)量比可適當(dang)增加，從(cong)而(er)減(jian)(jian)小噴(pen)油(you)(you)(you)器關(guan)閉延遲(chi)同(tong)(tong)時(shi)減(jian)(jian)小的(de)噴(pen)油(you)(you)(you)延遲(chi)。

附圖說明

圖1為本發明的(de)(de)高壓(ya)共(gong)軌專用噴油(you)裝置的(de)(de)結構示意圖；

圖(tu)(tu)2控(kong)制活塞(sai)升(sheng)啟后局部(bu)示意圖(tu)(tu)。

具體實施方式

下(xia)面將結合附圖(tu)對本發(fa)明(ming)的(de)(de)技術(shu)方案(an)進行(xing)清楚、完整地描述(shu)，顯然，所(suo)描 述(shu)的(de)(de)實(shi)施(shi)例是本發(fa)明(ming)一部(bu)分實(shi)施(shi)例，而不是全部(bu)的(de)(de)實(shi)施(shi)例。基于(yu)(yu)本發(fa)明(ming)中的(de)(de)實(shi)施(shi)例，本領域(yu)普通技術(shu)人員(yuan)在(zai)沒有做出創造性勞動前提下(xia)所(suo)獲得(de)的(de)(de)所(suo)有其他實(shi)施(shi)例，都屬(shu)于(yu)(yu)本發(fa)明(ming)保護的(de)(de)范圍(wei)。

在本(ben)發(fa)明(ming)的描述(shu)(shu)中(zhong)，需要(yao)說(shuo)明(ming)的是(shi)(shi)，術語“中(zhong)心”、“上”、“下”、“左”、“右(you)”、“豎直”、“水平”、“內”、“外”等指示的方(fang)位(wei)(wei)(wei)或位(wei)(wei)(wei)置(zhi)關系(xi)為(wei)(wei)基于附圖所示的方(fang)位(wei)(wei)(wei)或位(wei)(wei)(wei)置(zhi)關系(xi)，僅是(shi)(shi)為(wei)(wei)了便于描述(shu)(shu)本(ben)發(fa)明(ming)和簡(jian)化描述(shu)(shu)，而不是(shi)(shi)指示或暗示所指的裝置(zhi)或元件必須具有(you)特定的方(fang)位(wei)(wei)(wei)、以(yi)特定的方(fang)位(wei)(wei)(wei)構造和操作，因此不能(neng)理(li)解(jie)(jie)為(wei)(wei)對本(ben)發(fa)明(ming)的限制。此外，術語“第(di)一”、“第(di)二”、“第(di)三”僅用于描述(shu)(shu)目的，而不能(neng)理(li)解(jie)(jie)為(wei)(wei)指示或暗示相對重要(yao)性。

在(zai)本(ben)發(fa)明(ming)的描(miao)述中，需要(yao)說明(ming)的是，除非另有明(ming)確的規定和限定，術語(yu)(yu)“安裝”、“相連(lian)(lian)”、“連(lian)(lian)接(jie)(jie)”應做廣義(yi)理解(jie)(jie)，例(li)如，可(ke)(ke)以(yi)是固定連(lian)(lian)接(jie)(jie)，也可(ke)(ke)以(yi)是可(ke)(ke)拆(chai)卸連(lian)(lian)接(jie)(jie)，或(huo)一體地連(lian)(lian)接(jie)(jie)；可(ke)(ke)以(yi)是機械連(lian)(lian)接(jie)(jie)，也可(ke)(ke)以(yi)是電(dian)連(lian)(lian)接(jie)(jie)；可(ke)(ke)以(yi)是直(zhi)接(jie)(jie)相連(lian)(lian)，也可(ke)(ke)以(yi)通(tong)(tong)過中間媒介間接(jie)(jie)相連(lian)(lian)，可(ke)(ke)以(yi)是兩個元件內(nei)部(bu)的連(lian)(lian)通(tong)(tong)。對于本(ben)領域(yu)的普通(tong)(tong)技術人員而言，可(ke)(ke)以(yi)具體情況理解(jie)(jie)上述術語(yu)(yu)在(zai)本(ben)發(fa)明(ming)中的具體含(han)義(yi)。

參(can)見圖(tu)1和圖(tu)2所示(shi)，噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)器(qi)的(de)(de)(de)(de)(de)控(kong)(kong)(kong)制(zhi)(zhi)活(huo)塞(sai)7、噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)器(qi)體6、孔(kong)板11形成(cheng)了控(kong)(kong)(kong)制(zhi)(zhi)腔(qiang)(qiang)13。噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)器(qi)是(shi)通過(guo)控(kong)(kong)(kong)制(zhi)(zhi)控(kong)(kong)(kong)制(zhi)(zhi)腔(qiang)(qiang)13中(zhong)的(de)(de)(de)(de)(de)燃油(you)(you)(you)(you)(you)壓力的(de)(de)(de)(de)(de)上升(sheng)或下降，進而通過(guo)壓力差(cha)控(kong)(kong)(kong)制(zhi)(zhi)控(kong)(kong)(kong)制(zhi)(zhi)活(huo)塞(sai)7沿軸向(xiang)的(de)(de)(de)(de)(de)上下運動，從而控(kong)(kong)(kong)制(zhi)(zhi)針閥1運動控(kong)(kong)(kong)制(zhi)(zhi)噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)過(guo)程。通過(guo)減(jian)小(xiao)控(kong)(kong)(kong)制(zhi)(zhi)活(huo)塞(sai)7頂(ding)部(bu)和孔(kong)板11底面(mian)(mian)(mian)之(zhi)間(jian)(jian)裝配(pei)間(jian)(jian)隙(xi)(xi)8，當噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)器(qi)噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)時(shi)(shi)，控(kong)(kong)(kong)制(zhi)(zhi)活(huo)塞(sai)7升(sheng)起(qi)后(hou)，控(kong)(kong)(kong)制(zhi)(zhi)活(huo)塞(sai)7頂(ding)部(bu)和孔(kong)板底11面(mian)(mian)(mian)之(zhi)間(jian)(jian)形成(cheng)節(jie)流(liu)環帶15，產(chan)生節(jie)流(liu)效(xiao)果實現了大(da)幅度減(jian)少噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)器(qi)動態回油(you)(you)(you)(you)(you)。為了更(geng)(geng)好地(di)發揮控(kong)(kong)(kong)制(zhi)(zhi)活(huo)塞(sai)7頂(ding)部(bu)和孔(kong)板11之(zhi)間(jian)(jian)間(jian)(jian)隙(xi)(xi)的(de)(de)(de)(de)(de)節(jie)流(liu)效(xiao)果，避免(mian)控(kong)(kong)(kong)制(zhi)(zhi)活(huo)塞(sai)7升(sheng)起(qi)后(hou)堵住進油(you)(you)(you)(you)(you)量(liang)(liang)孔(kong)12，控(kong)(kong)(kong)制(zhi)(zhi)活(huo)塞(sai)頂(ding)7部(bu)為圓(yuan)弧形或為梯形，圓(yuan)弧直(zhi)徑大(da)于控(kong)(kong)(kong)制(zhi)(zhi)活(huo)塞(sai)7直(zhi)徑的(de)(de)(de)(de)(de)3倍，梯形的(de)(de)(de)(de)(de)短(duan)邊小(xiao)于引流(liu)孔(kong)9直(zhi)徑。由噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)器(qi)的(de)(de)(de)(de)(de)工作(zuo)(zuo)原理可(ke)知(zhi)，進出量(liang)(liang)孔(kong)流(liu)量(liang)(liang)比(bi)對噴(pen)(pen)(pen)(pen) 油(you)(you)(you)(you)(you)器(qi)開啟、關閉性能(neng)影響很大(da)。本(ben)發明中(zhong)，出油(you)(you)(you)(you)(you)量(liang)(liang)孔(kong)10發揮節(jie)流(liu)作(zuo)(zuo)用的(de)(de)(de)(de)(de)同時(shi)(shi)，控(kong)(kong)(kong)制(zhi)(zhi)活(huo)塞(sai)7頂(ding)部(bu)和孔(kong)板11底面(mian)(mian)(mian)之(zhi)間(jian)(jian)也設計(ji)了節(jie)流(liu)環帶15，發揮節(jie)流(liu)作(zuo)(zuo)用，這將導(dao)致控(kong)(kong)(kong)制(zhi)(zhi)腔(qiang)(qiang)13保持更(geng)(geng)高(gao)的(de)(de)(de)(de)(de)燃油(you)(you)(you)(you)(you)壓力。當電(dian)磁閥斷電(dian)以后(hou)，控(kong)(kong)(kong)制(zhi)(zhi)腔(qiang)(qiang)壓力較高(gao)，其恢(hui)復的(de)(de)(de)(de)(de)將更(geng)(geng)快，噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)關閉延遲(chi)更(geng)(geng)短(duan)，提高(gao)了噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)器(qi)噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)靈敏性。這樣在噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)器(qi)的(de)(de)(de)(de)(de)設計(ji)初(chu)期可(ke)以將噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)器(qi)出油(you)(you)(you)(you)(you)量(liang)(liang)孔(kong)10和進油(you)(you)(you)(you)(you)量(liang)(liang)孔(kong)12流(liu)量(liang)(liang)比(bi)設計(ji)相(xiang)對更(geng)(geng)大(da)，可(ke)增加(jia)到1.3～1.8，使噴(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)器(qi)減(jian)小(xiao)關閉延遲(chi)的(de)(de)(de)(de)(de)同時(shi)(shi)減(jian)小(xiao)開啟延遲(chi)。

控(kong)制(zhi)(zhi)腔(qiang)13中燃(ran)油(you)壓(ya)力的(de)變化的(de)規律決定了噴(pen)油(you)器燃(ran)油(you)的(de)噴(pen)油(you)量(liang)，噴(pen)油(you)器控(kong)制(zhi)(zhi)活塞(sai)7頂部和孔(kong)板11底面間(jian)(jian)(jian)節(jie)(jie)流環(huan)(huan)帶(dai)間(jian)(jian)(jian)隙(xi)(xi)對動(dong)態回(hui)油(you)量(liang)、噴(pen)油(you)關閉延遲影響很大。為了減少因為裝(zhuang)配(pei)誤差節(jie)(jie)流環(huan)(huan)帶(dai)15間(jian)(jian)(jian)隙(xi)(xi)不同導致的(de)控(kong)制(zhi)(zhi)腔(qiang)壓(ya)力13差異(yi)，進而改善噴(pen)油(you)器裝(zhuang)配(pei)一(yi)致性。將控(kong)制(zhi)(zhi)活塞(sai)頂部和孔(kong)板底面間(jian)(jian)(jian)裝(zhuang)配(pei)間(jian)(jian)(jian)隙(xi)(xi)8小于針閥限位間(jian)(jian)(jian)隙(xi)(xi)4的(de)0～0.02mm，使控(kong)制(zhi)(zhi)活塞(sai)7完(wan)全(quan)升起后處(chu)于完(wan)全(quan)浮動(dong)狀態，通過液壓(ya)平衡自動(dong)浮動(dong)調節(jie)(jie)控(kong)制(zhi)(zhi)活塞(sai)7和孔(kong)板1底面之間(jian)(jian)(jian)的(de)節(jie)(jie)流環(huan)(huan)帶(dai)15間(jian)(jian)(jian)隙(xi)(xi)。

本實施例中(zhong)，所述泡沫鋁及其合金質輕，具有(you)(you)吸音、隔熱(re)、減振、吸收沖擊(ji)能(neng)和(he)(he)(he)電(dian)磁(ci)波等特(te)性(xing)；泡沫鎳(nie)由于(yu)有(you)(you)連(lian)通的氣孔(kong)結構和(he)(he)(he)高(gao)的氣孔(kong)率，因此具有(you)(you)高(gao)通氣性(xing)、高(gao)比表面(mian)積(ji)和(he)(he)(he)毛細(xi)力，多作為功(gong)能(neng)材料(liao)，用(yong)于(yu)制作流(liu)體過(guo)濾(lv)器、霧化(hua)器、催(cui)化(hua)器、電(dian)池電(dian)極板和(he)(he)(he)熱(re)交換器等。

本實施例中所述高(gao)壓(ya)共(gong)(gong)軌專用噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)裝(zhuang)(zhuang)置,通(tong)過合理設計(ji)孔(kong)板(ban)底面(mian)及控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)活塞(sai)(sai)(sai)頂部形狀(zhuang)，當(dang)噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)器噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)時，在(zai)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)活塞(sai)(sai)(sai)和(he)(he)孔(kong)板(ban)底面(mian)形成節(jie)流(liu)(liu)環帶,產生節(jie)流(liu)(liu)效果，從(cong)(cong)而(er)大(da)幅度減少(shao)(shao)(shao)噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)器動(dong)(dong)(dong)態(tai)回油(you)(you)(you)(you)(you)，減少(shao)(shao)(shao)噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)器發熱，減少(shao)(shao)(shao)了供油(you)(you)(you)(you)(you)泵功率(lv)損失。同(tong)(tong)時精確設計(ji)孔(kong)板(ban)底面(mian)和(he)(he)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)活塞(sai)(sai)(sai)頭部之(zhi)間(jian)節(jie)流(liu)(liu)環帶間(jian)隙，使(shi)活塞(sai)(sai)(sai)完(wan)全(quan)升起后處于完(wan)全(quan)浮(fu)動(dong)(dong)(dong)狀(zhuang)態(tai)。進而(er)通(tong)過液壓(ya)平衡(heng)自動(dong)(dong)(dong)浮(fu)動(dong)(dong)(dong)調節(jie)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)活塞(sai)(sai)(sai)和(he)(he)孔(kong)板(ban) 底面(mian)之(zhi)間(jian)的(de)(de)節(jie)流(liu)(liu)環間(jian)隙，從(cong)(cong)而(er)減少(shao)(shao)(shao)因為裝(zhuang)(zhuang)配(pei)誤差節(jie)流(liu)(liu)環帶間(jian)隙不(bu)同(tong)(tong)導致(zhi)的(de)(de)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)腔(qiang)(qiang)壓(ya)力差異，進而(er)改(gai)善噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)器裝(zhuang)(zhuang)配(pei)一致(zhi)性(xing)。控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)腔(qiang)(qiang)因為出油(you)(you)(you)(you)(you)量(liang)孔(kong)、控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)活塞(sai)(sai)(sai)和(he)(he)孔(kong)板(ban)底面(mian)之(zhi)間(jian)的(de)(de)節(jie)流(liu)(liu)環帶的(de)(de)共(gong)(gong)同(tong)(tong)作用會使(shi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)腔(qiang)(qiang)保持(chi)更(geng)(geng)高(gao)的(de)(de)壓(ya)力，當(dang)電(dian)磁閥斷電(dian)以后，控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)腔(qiang)(qiang)壓(ya)力恢復的(de)(de)更(geng)(geng)快，噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)關(guan)閉延(yan)遲(chi)更(geng)(geng)短，提高(gao)了噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)器噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)靈敏性(xing)。出油(you)(you)(you)(you)(you)量(liang)孔(kong)和(he)(he)進油(you)(you)(you)(you)(you)量(liang)孔(kong)流(liu)(liu)量(liang)比可適當(dang)增加，從(cong)(cong)而(er)減小噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)器關(guan)閉延(yan)遲(chi)同(tong)(tong)時減小的(de)(de)噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)延(yan)遲(chi)。

最后(hou)應說明(ming)的(de)是：以(yi)上各實(shi)(shi)(shi)施(shi)例僅用(yong)以(yi)說明(ming)本(ben)(ben)發明(ming)的(de)技術(shu)方(fang)(fang)(fang)案(an)，而(er)非對(dui)(dui)(dui)其(qi)限制；盡管(guan)參照前述各實(shi)(shi)(shi)施(shi)例對(dui)(dui)(dui)本(ben)(ben)發明(ming)進(jin)行了詳細(xi)的(de)說明(ming)，本(ben)(ben)領(ling)域的(de)普通技術(shu)人員應當(dang)理解(jie)：其(qi)依然(ran)可以(yi)對(dui)(dui)(dui)前述各實(shi)(shi)(shi)施(shi)例所(suo)記載的(de)技術(shu)方(fang)(fang)(fang)案(an)進(jin)行修(xiu)改(gai)(gai)，或者對(dui)(dui)(dui)其(qi)中部(bu)分或者全部(bu)技術(shu)特征進(jin)行等同(tong)替換(huan)；而(er)這些修(xiu)改(gai)(gai)或者替換(huan)，并不使相應技術(shu)方(fang)(fang)(fang)案(an)的(de)本(ben)(ben)質脫(tuo)離本(ben)(ben)發明(ming)各實(shi)(shi)(shi)施(shi)例技術(shu)方(fang)(fang)(fang)案(an)的(de)范圍(wei)。